STEP SIX Restart the engine and again shift into drive or neutral. Allow engine to run for at least 5 minutes. STEP SEVEN Shut off engine for 10 seconds and restart. STEP EIGHT That should do it. With engine stabilized and in closed loop, the IAC motor values should be between nine to 12 counts.
The second and what seems to be the more common cause of Silverado fuel gauge or Sierra fuel gauge trouble is a faulty instrument cluster. In fact, this is,unfortunately, a common problem among most GM vehicles built from 2003-2006 - various gauges in the instrument clusters of these cars and trucks tend to fail as the mileage starts to get.
Low idle slight stutter. 360. Asked by coyboy350 Jan 05, 2015 at 1020 PM about the 1994 Chevrolet CK 1500 Silverado Extended Cab 4WD. Question type General. 94 5.7 tbI I have replaced every sensor on. motor had igniton timing redone. The truck. has full power while driving. Just low idle at.
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Oct 13, 2012 85,240 Answers. This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 (1996 and newer) or a OBD1 (1995 and older) fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner) from NAPA or Carquest (made by CRC chemicals ..
Mar 26, 2014 So, when the EGR valve gets stuck open, it isn&39;t able to stop the flow of exhaust gas from entering the intake manifold and thus the combustion chamber and your pickup or SUV will idle rough. Here&39;s a few more specific symptoms you&39;ll see Rough idle. Code 32 EGR System Problem. Code 33 MAP Sensor Signal High. Bad gas mileage..
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August 30, 2019 by Jason. There are quite a few reasons why your Chevy Silverado could be idling rough. An internal combustion engine needs air, fuel, and spark in order to achieve ignition. When one or more of these variables is off it can lead to a rough idling condition. Most of the time the culprit is going to be the ignition system.
Your problem could be the starter drive gear is loose and hitting the flywheel, a loose flywheel bolt, or a cracked flywheel. Cracked fly wheel usually gets louder as it gets hotter, or under heavier load. Starter drive gear sounds more like a "Ting, Ting". Tin sort of a sound. I would take that cover off and turn the flywheel by hand to see if.
1991 silverado 3500 die.the engine is warmed.untill.idle fine Have a funny problem with a 1991 Siverado 350 5 speed trans. The engine when cold starts wonderfully, ides for about 5 seconds and wants to die.
Two things come to mind very quickly. 1. Leaky throttle body base gasket.Very comon on this engine.I don&x27;t know if you serviced this when you pulled the intake. 2.Misadjusted or bent throttle linkage.You don&x27;t know what was done before you got to it. If these ck ok there are other more complicated issues you would need a scan tool to ck.
STEP SIX Restart the engine and again shift into drive or neutral. Allow engine to run for at least 5 minutes. STEP SEVEN Shut off engine for 10 seconds and restart. STEP EIGHT That should do it. With engine stabilized and in closed loop, the IAC motor values should be between nine to 12 counts.
The 1991 Chevrolet Blazer has 1 problems reported for stalls, irregular idle speed when cold. Average repair cost is 210 at 120,000 miles.
Problem Description. A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern. 23 people reported this problem. 6 comments..
So, one of the most common symptoms associated with a problematic idle air control valve (IAC) is, irregular idle speed. Because, the (IAC); is programmed to regulate and maintain the engine idle speed, at a constant rate. If the valve fails or has any issues, it can cause the idle speed to be thrown off. This may result in an unusually high or.
In this video, I will show you how to set the base idle for your Chevy or GM V8 engine. This will apply mostly to 1987-1998 vehicles with Throttle Body Inje..
Step 2 Locate the port for the OBDII reader. The diagnostic link connector, or DLC, is the front door that leads right into the digital innards of your Silverado&x27;s computer. It&x27;s found under the driver&x27;s side dashboard, usually just to the left of the steering column.
A dirty throttle body can lead to stalling in your Silverado. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem. Here&x27;s a great YouTube video from EricTheCarGuy. on how to clean a throttle body.
2000 chevy silverado high idle when i bump the trottle or just driving around When the high idle kicks in it also gives the trani an eractic shifting pattern. I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.
Apr 15, 2006 98 Chevy Silverado Idle problem, Does Not Idle well, until warmered up. oregon712. 04-15-2006, 0151 AM. 98 Chevy Silverado K3500 7.4L. i&39;m still looking for answers ..
CK 1500 2500 Silverado 350 5.7L. I put a quarter of a million, near trouble free, miles (water pump, alternator & 4 batteries) on the truck when, after leaving it set for about 3 months, it.
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Discussion Starter 9 Sep 5, 2007 (Edited) Re 95 Chevy S-10 4.3L TBI - Idle troubles. Another Update, It looks like internet and my repair book is wrong on the subject of MAP sensor voltage. I was told that the MAP sensor puts out 1.2 - 1.6 volts at idle and around 4.2 - 4.5 at Wide open. This data is wrong.
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Start the engine and let it idle. 2. Now, listen to the sound coming out of the tailpipe. If you hear a clear popping sound, most likely you have a performance problem; if not, check the engine mounts. A worn-out, loose or damaged engine mount can cause the engine to vibrate. A fouled spark plug can cause a rough idle.
The truck when at normal running temperature and at idle will idle fine for about 5 to 10 seconds then all of a sudden the idle speed drops to a point that I think it may stall then it revs up and surges then settles out and idles fine for about 10 seconds then this drop and surge repeats about every 10 seconds..
here are the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area&x27;s get full of gunk and combustion residue over the miles and cause idle issues.
Start the engine and let it idle. 2. Now, listen to the sound coming out of the tailpipe. If you hear a clear popping sound, most likely you have a performance problem; if not, check the engine mounts. A worn-out, loose or damaged engine mount can cause the engine to vibrate. A fouled spark plug can cause a rough idle.
Chevrolet Silverado engine problems aren&x27;t restricted to faulty sensors. For 1999 to 2017 models, especially the V6 and 5.3-liter V8 engines, oil consumption was a real concern. We&x27;re talking about 3 or 4 quarts between oil changes, and sometimes more.
hello all,, i have a Chevrolet 1500 Silvrado Z71 2003 with start problem, it will not crank at all,, battery good and took it to the dealer and started fin without any problems there, but some times it will not crank at all, but it will start if i keep try for 10 or more times.
This article applies to the Chevrolet Silverado GMT800 (1999-2006). 4WD systems give truck owners unprecedented abilities when it comes to gaining traction, both on and off the road. But like most "upgrades," these systems also consist of numerous components, which over time will wear out and cause problems.
If your Chevy Silverado&x27;s speedometer is not working, the first place to go would be to check the service engine soon light (if applicable). Now, take it out and see if the cruise control still works. If it does, that&x27;s a pretty good indication that the vehicle speed sensor is just fine. If it doesn&x27;t, it&x27;s time to take a look at it.
I have a 2001 Chevy Suburban 2500, 2WD w 6.0L engine. We purchased it from a Chevy dealership back in 2002. It was a GM buy-back, for the same reasons it&x27;s now having. NO DTC&x27;s, NO CEL. Having a problem with stalling. It usually happens after backing out of parking areas when vehical returns to idle while shifting from reverse to drive.
Two things come to mind very quickly. 1. Leaky throttle body base gasket.Very comon on this engine.I don&x27;t know if you serviced this when you pulled the intake. 2.Misadjusted or bent throttle linkage.You don&x27;t know what was done before you got to it. If these ck ok there are other more complicated issues you would need a scan tool to ck.
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Best Throttle body cleaner httpsamzn.to2Yy2Vacnew IAC valve httpsamzn.to2YXCFkRTake out the iac valve, clean the nasty gunk off the part that moves i..
If your chevy gm tbi is running rich this will help you trouble shoot it and fix itDon't Forget to Subscribe today for more fact or fiction, diy ,how to car.
Apr 15, 2006 98 Chevy Silverado Idle problem, Does Not Idle well, until warmered up. oregon712. 04-15-2006, 0151 AM. 98 Chevy Silverado K3500 7.4L. i&39;m still looking for answers ..
1991 chevy Silverado 5.0 305 engine,has a rough idle,wants to stall at stop signs and bogs down when accelerating.I&x27;ve replaced the following-egr valve,temp sensor,map sensor,vacuum solenoid,fuel filter,no difference.Then I replaced the throttle sensor and the idle air control valve and now it won&x27;t idle at all. 0helpful 1answer.
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Two things come to mind very quickly. 1. Leaky throttle body base gasket.Very comon on this engine.I don&x27;t know if you serviced this when you pulled the intake. 2.Misadjusted or bent throttle linkage.You don&x27;t know what was done before you got to it. If these ck ok there are other more complicated issues you would need a scan tool to ck.
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It would cool and drop back into open-loop at idle, making for a rich rough running idle. I installed a heated three wire O2 sensor adapter kit from Jim&39;s Performance (19.95). These three wire heated sensors (I use the 10amp Bosch 13077 O2 sensor) are more expensive with the added feature of self-cleaning and longer use..
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Buy Chevrolet Silverado 1500 Idle Air Control Valve online and get Free Next Day Delivery on qualified purchases, or pick up your parts at a nearby AutoZone today. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. When the air control valve for Chevy Silverado is clogged, it likely to.
Joined Apr 15, 2007. 226 Posts. 4 &183; Feb 28, 2008. Re extream high idle problem on 1990 chevy 1500, 4.3 v6 TBI. Good afternoon. Yes the pcv valve circuit you decribe is correct.You might call it flow thru filtered crankcase ventilation.TPS is throttle position sensor-probably 3 or 4 wire sensor at throttle linkage.
View all 26 consumer vehicle reviews for the Used 1991 Chevrolet S-10 Blazer on Edmunds, or submit your own review of the 1991 S-10 Blazer. a major vacuum leak, so it doesn&x27;t idle like it.
Jun 22, 2015 Step 3 Check the driveshaft. It could be loose, or out of balance. Out of the three most common causes for vibrations, this is by far the most costly or complicated one. There have been numerous reports on Chevy forums about owners experiencing loose driveshaft joints, or out of balance driveshafts that lead to big vibrations at the wheel..
Shop for the best Coolant Temperature Sensor for your 1991 Chevrolet C1500 Pickup RWD, and you can place your order online and pick up for free at your local O&x27; . a Check Engine light coming on, rough idle, or poor gas mileage. If your Chevy Silverado is having any of these problems, you can get a replacement coolant temperature sensor from O.
Sep 04, 2012 Runing rich on idle can have several causes, for example - Throttle Position Sensor failed or misadjusted. Idle Air Controller (IAC) - Coolant Temp Sensor. Fuel Pressure Regulator. Obstruction in the fuel return lines to tank. Pressure build up in tank due to failed venting system..
August 30, 2019 by Jason. There are quite a few reasons why your Chevy Silverado could be idling rough. An internal combustion engine needs air, fuel, and spark in order to achieve ignition. When one or more of these variables is off it can lead to a rough idling condition. Most of the time the culprit is going to be the ignition system.
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This is a video about rough acceleration rough idle low idle and possible stalling.
I had a 89 GT 150 that would load up if you didn't keep the engine level while at idle. 0 out of 5 stars 4. 1977-1978. 129. 6 Billion Through Early Results, Upsizing and Settlement Date for Cash Tender Offers and Planned Redemption of its Remaining 8. 150V NA Here you will find Evinrude service manuals and Evinrude owners manuals for 2011 or newer Evinrude outboard engines..
my 91 chevy silverado keeps stalling out when i put it into gear. idles fine and will drive sometimes normaly - Chevrolet 1991 C1500 question. Search Fixya . rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get.
All Activity. Classic Chevrolet GMC Pickup Trucks. 1988-1999 Chevrolet & GMC CK GMT400 Platform. Hesitationstumble on acceleration. Sign up for FREE Become a GM-Trucks.com Member Today In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and.
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The number one reason that your Silverado would have low oil pressure would be a lack of oil. The first thing you should do, is check your engine oil level. If the engine oil level appears to be low (or empty), you&x27;ll need to fill it up. Do not drive a vehicle with low engine oil to the store to buy more oil. Running without enough oil to.
My 1991 Chevy Silverado starts up ok, but has a rough idle until it warms up. Once it is warm, it runs good unless you try to accelerate real fast. It then bogs and backfires thru the Carb and exhaust. Have replaced plugs, PVC valve, cap and rotor, MAP sensor, O2 sensor and exhaust pipes..
Apply gasket dressing to the rear flanges on the water pump, and position the gaskets. Then, apply gasket dressing to the gaskets. Install the water pump. Tighten the six bolts in a crisscross pattern to 132 inch-lbs, and then again to 22 ft-lbs. Re-install the belt tensioner, and tighten the bolts to 37 ft-lbs.
1991 Chevy C1500 intermittent problem. Failed smog. 169,000 miles, 350 wair, Auto. Intermittent rough idlestall combined with what feels like vacuum assist on brakes going out. Failed smog (low 240 ppm and high speed 1830 ppm hydrocarbons). Replaced plugs,wires,rotor, dist cap and oil change. NO CHANGE. Tried to get computer trouble codes but ..
I had a 89 GT 150 that would load up if you didn't keep the engine level while at idle. 0 out of 5 stars 4. 1977-1978. 129. 6 Billion Through Early Results, Upsizing and Settlement Date for Cash Tender Offers and Planned Redemption of its Remaining 8. 150V NA Here you will find Evinrude service manuals and Evinrude owners manuals for 2011 or newer Evinrude outboard engines..
This is a tutorial on how to swap out an IAC valve in your 1991 Chevy C1500 pickup. This motor is the 5.7 V8. I am not an expert, Im a semi professional ama.
The 4l80e transmission was found in a many heavy duty GM and high end luxury vehicles, such as Rolls Royce, Bentley, and Jaguar ranging from model years 1991 - 2013. Here is the complete list of 4l80e equipped cars and trucks. 1991-2013 Chevrolet CKChevrolet SilveradoGMC Sierra 2500 & 3500.
1 Leakage of an exhaust system. 2 Malfunctioning spark plugs. 3 Faulty sensor performance. 4 Broken ignition coils. 5 Gasket failure. 6 Cracked throttle body. 7 Open circuits and electric fluctuations. 8 Differences in fuel pressure. 9 Symptoms of Chevy Silverado rough idling in cold..
The IAC (Idle Control Valve) is electronically adjusted by the on board computer. There is no way to manually adjust it. If you are having issues with the idle, the best remedy is to replace it.
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09-14-2004, 0543 PM. If the MAP was bad it will set the mil light (1991 check engine light name changed to mil malfunction indicator lamp) If you do not have a fast idle at start up then you might have a coolant temp sensor going bad. Its easy to check that with a scan tool and engine cold.
The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on.
1991 Chevy C1500 intermittent problem. Failed smog. 169,000 miles, 350 wair, Auto. Intermittent rough idlestall combined with what feels like vacuum assist on brakes going out. Failed smog (low 240 ppm and high speed 1830 ppm hydrocarbons). Replaced plugs,wires,rotor, dist cap and oil change. NO CHANGE. Tried to get computer trouble codes but.
Oct 23, 2013 The IAC (Idle Control Valve) is electronically adjusted by the on board computer. There is no way to manually adjust it. If you are having issues with the idle, the best remedy is to replace it ..
The Problem . A quick search of the manual and the internet makes it sound simple enough to set the timing for the Chevy. Just set the idle as if you were in drive and then adjust the timing to the factory-specified timing mark. The reality is a little more complex.
Apr 02, 2010 hoping to reach asemaster35yrs on same prolem with 91 1500 silverado 4x4. i still have same problem i dicconnected and plugged brake booster hose and still same problem i also removed the idle air control and cleaned the cavity in the throttle body and the idle climed to 1200 rpm but it seems to run better except for the high idle..
Joined Apr 15, 2007. 226 Posts. 4 &183; Feb 28, 2008. Re extream high idle problem on 1990 chevy 1500, 4.3 v6 TBI. Good afternoon. Yes the pcv valve circuit you decribe is correct.You might call it flow thru filtered crankcase ventilation.TPS is throttle position sensor-probably 3 or 4 wire sensor at throttle linkage.
The 2022 Chevy Silverado comes with a 2.7L turbo-charged 4-cylinder engine and is a great alternative to traditional V8s, according to the car experts at AutoBlog. The professionals also recommend upgrading to the Duramax diesel engine for the best in efficiency. Dependable 1997 Silverado truck for work or play. Many more miles to give.
Chevrolet transmission problems can be caused by something as simple as low transmission fluid or a dirty filter and even a dead battery. They can also be caused by more serious issues such as internal hydraulic leaks, faulty valve body, failed clutch pack, torque converter, and other problems requiring a complete transmission overhaul or replacement.
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1 Answer. 1991 chevy 1500, 350 motor, 2wd. Won&39;t maintain a consistant idle -- dies out and has a rough sound to it. The truck sat for 2 weeks without being started. Changed the alternator, distributor wwires and sparkplugs. Spitted out a lot of black soot out the back pipes at first, sprayed w-d on carborator work for a little bit then went ..
The high idle was a vacuum leak - the gasket between the TBI and the intake manifold was bad. The underlying problem was the distributor. Apparently these late 80&39;s early 90&39;s Chevy 350 TBIs are known for developing microcracks in the Distributor Shaft, which decreases magnetism and can cause this problem. I hope this helps someone in the future..
I purchased a 2001 8.1 2500HD Silverado (used from dealer) about a year ago it ran great until recently. I am now experiencing stalling problems when warmed up approx. between 140f to 160f, when it stalls its not constant, its happens when highway driving or standing in line (low or fast idle)when it does stall radio and other electrical items still work, idiot battery light flickers slowly.
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Customer complaint bad gas mileage and a surging condition at idle, sometimes. Problem excessive corrosion internally on the Engine Coolant Temperature Sens.
This is a video about rough acceleration rough idle low idle and possible stalling.
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91 Chevy K 1500 350 idle problem. diverdown91. 03-21-2004, 1100 PM. This is a great informational site. Here is what I have 91 Chevy K 1500 Silverado 350 Automatic 88,000. I have replaced plugs, fuel filter, distributor cap, plug wires, Mapp sensor and EGR valve. It is a great truck but sporatically while sitting at a stop light getting ready.
One is going to be ground, one is going to be 5 volts, and the other wire would be somewhere between 0-5v. At idle I believe you should see something like 1.4-1.5 volts. The MAP is responsible for determining how much air is coming in and therefore how much fuel to inject. Obviously this could be a problem.
January 2001Dear ConsumerThank you for contacting the Center for Auto Safety (CAS) about your GM Suburban, TahoeYukon, full-size CK or SilveradoSierra pickup or BlazerJimmy sport utility vehicle. For years, GM had two Jimmys and two Blazers - one full size and one mid-size. In 1993, the big GMC Jimmy became the Yukon while the smaller S15 Jimmy became the only Jimmy. In 1995, the big.
The second and what seems to be the more common cause of Silverado fuel gauge or Sierra fuel gauge trouble is a faulty instrument cluster. In fact, this is,unfortunately, a common problem among most GM vehicles built from 2003-2006 - various gauges in the instrument clusters of these cars and trucks tend to fail as the mileage starts to get.
Joined Apr 15, 2007. 226 Posts. 4 &183; Feb 28, 2008. Re extream high idle problem on 1990 chevy 1500, 4.3 v6 TBI. Good afternoon. Yes the pcv valve circuit you decribe is correct.You might call it flow thru filtered crankcase ventilation.TPS is throttle position sensor-probably 3 or 4 wire sensor at throttle linkage.
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Worst 1991 Chevrolet CK 1500 Problems 1 Cab Mount Brackets Rotted Out 1991 CK 1500 Average Cost to Fix NA Average Mileage 60,000 mi. Learn More 2 No Brake Lights Or Turn Signals 1991 CK 1500.
Problem Description. A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern. 23 people reported this problem. 6 comments..
My dakota was surging up and down at idle. I cleaned it and the problem went away. 29-41, 42-48, 49-54 Moderator 1948 Chevy Fleetmaster Coupe Purchased 62010. Stock with rebuilt 52 216 installed May 1966. 1991 Chevy C1500 Silverado 5.7 TBI 700r4 Trans Email Report CowboyTrukr "11th Year" Silver Supporting Member Posts 4793 Loc Salt Lake.
Sep 14, 2008 Sep 14, 2008. 1. Recently rebuilt the 454 in my 1990 TBI Burb. I am having a terrible time with getting it to idle smooth. The engine has a little over 500 miles on it. I have spent countless hours going over the engine looking for vacuum leaks and believe every thing is OK on that front. I have replaced the engine temp sensor, the connections ..
If your Chevy Silverado&x27;s speedometer is not working, the first place to go would be to check the service engine soon light (if applicable). Now, take it out and see if the cruise control still works. If it does, that&x27;s a pretty good indication that the vehicle speed sensor is just fine. If it doesn&x27;t, it&x27;s time to take a look at it.
March 2007. Greetings I picked up my 2007 Silverado K1500, 4x4 Crew on Friday, March 9th and noticed the same problem. Rough shift from 1st to 2nd. It had 5 miles on it when delivered. Now at 36 miles the shift is smooth. I attributed the rough shifting to incomplete trans fluid distribution.
1994 Chevrolet C1500 194,000 mi, engine idles too fast, wasting fuel, and making it unsafe at slow speeds, because i have to have my foot on the brake. carb cleaner sprayed at the base of the throttle body, when idling, is sucked through, causing the enging to bog down for a short time. I suspect a gasket failure.
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This is a video about rough acceleration rough idle low idle and possible stalling.
Provide more consistent voltage to eliminate engine rough idle problems Platinum connector threads reduce the number of connection points for faster reaction to change. 1991 Chevy R3500 Silverado; 1991 Chevy V3500 Cheyenne; 1991 Chevy V3500 Silverado; Related Searches. 1991 Chevy CK Pickup After Market Accessories & Parts Online;.
my 91 chevy silverado keeps stalling out when i put it into gear. idles fine and will drive sometimes normaly - Chevrolet 1991 C1500 question. Search Fixya . rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get.
10-08-12 0126 PM - Post 2277892. In response to Chevytech. Try squirting some WD40 around the base of the throttle body and see if the idle changes. If so you might have an leaky throttle body gasket.
Jul 10, 2020 Is there an idle speed or other IAC-related DTC stored Then theres probably a problem with the IAC, a vacuum leak, or a problem with the IAC control circuit. In most cases, cars built after 1996 with onboard diagnostics (OBD) II will set a code for a bad IAC. Many older cars with OBD I will also set a DTC when theres a problem with the IAC.. Jun 04, 2022 Published on. June 4, 2022. The GM 2.7-liter L3B Turbo four-cylinder engine for Chevy Silverado and GMC Sierra pickups is meant to change minds about power and torque in a small package. It seems this tough engine has everything incorporated into it. Stop-start cylinder deactivation, direct injection, variable valve timing, thermal management ..
August 30, 2019 by Jason. There are quite a few reasons why your Chevy Silverado could be idling rough. An internal combustion engine needs air, fuel, and spark in order to achieve ignition. When one or more of these variables is off it can lead to a rough idling condition. Most of the time the culprit is going to be the ignition system.
Your problem could be the starter drive gear is loose and hitting the flywheel, a loose flywheel bolt, or a cracked flywheel. Cracked fly wheel usually gets louder as it gets hotter, or under heavier load. Starter drive gear sounds more like a "Ting, Ting". Tin sort of a sound. I would take that cover off and turn the flywheel by hand to see if ..
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Although Chevrolet has been making trucks since 1918, the Silverado has only been around since 1999. We take a look at the best and worst years. For over a century, Chevrolet has been building trucks to get America to work. The 1918 One-Ton owns the title of being the first purpose-built Chevy truck. Times were different, and the One-Ton barely.
Classic Chevrolet GMC Pickup Trucks. 1988-1999 Chevrolet & GMC CK GMT400 Platform. Stalls When Warm Sign up for FREE Become a GM-Trucks.com Member Today In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs.
If your Chevy Silverado&x27;s speedometer is not working, the first place to go would be to check the service engine soon light (if applicable). Now, take it out and see if the cruise control still works. If it does, that&x27;s a pretty good indication that the vehicle speed sensor is just fine. If it doesn&x27;t, it&x27;s time to take a look at it.
1991 chevy 1500, changed almost everything and still misses going down road sometimes, can&x27;t figure it out, please help. 1 Answer. we have changed out almost everything but still runs rough & misses going down highway. does fine in idle and at low speeds , this happens on hwy, loses speed sometimes all the way down to 35 miles an.
Oct 13, 2012 85,240 Answers. This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 (1996 and newer) or a OBD1 (1995 and older) fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner) from NAPA or Carquest (made by CRC chemicals ..
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High idle 92 silverado with tbi eng. idles high for longer than it should even after eng. has hit running temp. 007 Idle Speed Problems Scan Data for Idle . I need a diagram for a 1994 chevy silverado fuse box. 1994 Chevrolet K1500. Check Out the Latest Top Trucks Report.
Best Throttle body cleaner httpsamzn.to2Yy2Vacnew IAC valve httpsamzn.to2YXCFkRTake out the iac valve, clean the nasty gunk off the part that moves i..
Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and moreChevrolet's best-selling truck will also become its first fully electric truck when the Silverado EV debuts for the 2024 model year. 4 rear main wear ring. i. Class I crate engines generally produce about 10 more horsepower and torque over the.
High idle 92 silverado with tbi eng. idles high for longer than it should even after eng. has hit running temp. 007 Idle Speed Problems Scan Data for Idle . I need a diagram for a 1994 chevy silverado fuse box. 1994 Chevrolet K1500. Check Out the Latest Top Trucks Report.
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The way to test this out is to start your Silverado and let it run at idle. Disconnect the EGR valve&x27;s vacuum line and apply direct vacuum using a hand vacuum pump. When you apply vacuum, the EGR valve should open. When the valve opens; if the passages are clean and unobstructed you should notice a large RPM decrease.
1 Answer. 1991 chevy 1500, 350 motor, 2wd. Won&39;t maintain a consistant idle -- dies out and has a rough sound to it. The truck sat for 2 weeks without being started. Changed the alternator, distributor wwires and sparkplugs. Spitted out a lot of black soot out the back pipes at first, sprayed w-d on carborator work for a little bit then went ..
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Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and moreChevrolet's best-selling truck will also become its first fully electric truck when the Silverado EV debuts for the 2024 model year. 4 rear main wear ring. i. Class I crate engines generally produce about 10 more horsepower and torque over the.
Have the throttle body and plate cleaned with a carbon cleaner. Be sure to get it clean. Open the throttle and clean the entire body and the plate. This will usually fix this condition. This is assuming there is no vacuum leak, as that can also cause a low speedidle stall. 2004 Chevy 1500. Vortec 4.3 V6..
So, one of the most common symptoms associated with a problematic idle air control valve (IAC) is, irregular idle speed. Because, the (IAC); is programmed to regulate and maintain the engine idle speed, at a constant rate. If the valve fails or has any issues, it can cause the idle speed to be thrown off. This may result in an unusually high or.
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Gas treatments, to clean the system, have also helped keep everything running smoothly. My only complaint is gas mileage. 14 miles per gallon is about all I can get. Given today&39;s prices, it makes driving a bit expensive. Model year. 1991. Year of manufacture. 1991. First year of ownership. 1991..
have a 1991 chevy silverado that tries to die at every stop, or just drops idle real low and pops back up. hot or cold the system performs the same. idle is up down, up down, etc. replaced temp sensor, egr valve, throttle position sensor, rebuilt the tbi, new pressure regulator, new cap rotor wires plugs, etc. at 14 pedal truck pops and spits, at half throttle or more truck is very powerful.
Chevrolet Silverado 1500 Stalling or Low Engine Idle Speed Due to Dirty Throttle Body - 23 reports. Learn about this problem, why it occurs, and how to fix it. idle problems replaced master flow valve still have same idle problem ,almost cuts off at times and surges when rpm goes up . Report. 2000 Chevrolet Silverado 1500 49,500 mi, Visitor.
1991 CHEVROLET SILVERADO 5.7L V8 Ive got a 91 silverado 350 with some idle problems. When you first start it u need to give it throttle for a few seconds to keep er running and when she does stay running she idles really low, then if your not giving her gas and you cut the wheel shell cut out. Any ideas.
This is a tutorial on how to swap out an IAC valve in your 1991 Chevy C1500 pickup. This motor is the 5.7 V8. I am not an expert, Im a semi professional ama.
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Your problem could be the starter drive gear is loose and hitting the flywheel, a loose flywheel bolt, or a cracked flywheel. Cracked fly wheel usually gets louder as it gets hotter, or under heavier load. Starter drive gear sounds more like a "Ting, Ting". Tin sort of a sound. I would take that cover off and turn the flywheel by hand to see if.
1. Look for a high engine idle. A common symptom of a faulty idle control valve can be a high idle. Start the engine and look at the tachometer on the dashboard. Most vehicle&x27;s engines will idle at our below one thousand RPMs. If you are familiar with your engine&x27;s normal idle, compare that to its current RPMs.
If your chevy gm tbi is running rich this will help you trouble shoot it and fix itDon't Forget to Subscribe today for more fact or fiction, diy ,how to car.
To reset my TCM I turn on the key to the on position press the gas pedal to the floor for 10 seconds and then turn the key off then release the gas pedal and wait about 5 minutes to restart the engine. Like. 74) Rob November 4, 2020. I ha e a 05 gmc sierra put a new transmission in put it gear and have no power any idea.
If your chevy gm tbi is running rich this will help you trouble shoot it and fix itDon't Forget to Subscribe today for more fact or fiction, diy ,how to car.
Have the throttle body and plate cleaned with a carbon cleaner. Be sure to get it clean. Open the throttle and clean the entire body and the plate. This will usually fix this condition. This is assuming there is no vacuum leak, as that can also cause a low speedidle stall. 2004 Chevy 1500. Vortec 4.3 V6..
August 30, 2019 by Jason. There are quite a few reasons why your Chevy Silverado could be idling rough. An internal combustion engine needs air, fuel, and spark in order to achieve ignition. When one or more of these variables is off it can lead to a rough idling condition. Most of the time the culprit is going to be the ignition system.
Have the throttle body and plate cleaned with a carbon cleaner. Be sure to get it clean. Open the throttle and clean the entire body and the plate. This will usually fix this condition. This is assuming there is no vacuum leak, as that can also cause a low speedidle stall. 2004 Chevy 1500. Vortec 4.3 V6..
1991 Chevrolet Blazer engine problems with 4 complaints from Blazer owners. The worst complaints are broken crank, runs roughly after warmed up, and stalls, irregular idle speed when cold.
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Feb 12, 2017 My 1991 Chevy Silverado pick-up with a 5.7 liter motor hesitates and stumbles at take off or stops at times . runs great on freeway though. My car has 18000 miles. My car has an automatic transmission. If your fuel pressure is low or you have sticking clogged injectors you may get the hesitation and stumble on acceleration but run good at cruise..
1992.Silverado K3500 7.4 Liter,Manual Trans. Pulsing Idle. Sometimes accompanied by "Service engine soon" light. it s about 100 RPM pulse. Then it will smooth out and then it will start again. O2 Sensor or some other Sensor , or Fuel Filter.Its been a good long while since I ve changed that. Runs fine other than the Idle Bug.
2000 chevy silverado high idle when i bump the trottle or just driving around When the high idle kicks in it also gives the trani an eractic shifting pattern. I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.
1991 chevy silverado k2500 big block no spark; 92 k1500 with serious steering issues; Press-on or heat diff bearings still having issues with 92 k1500; 1991 idlerunning problem; 88 chevy 2500 runs poorly (help) &x27;91 K1500, 700R4 won&x27;t shift into 3rd or OD; 92 k1500 hesitationpower loss problem; Truck box replacement lock - make your own.
The only part of the ignition system I haven&x27;t tried replacing or inspecting is the control module. I&x27;ve had to replace the ignition module that sits at the base of the distributor a few times, but the failure mode was always that it would start and run, but wouldn&x27;t apply any advance, run a little rough, and would throw a trouble light.
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The Problem . A quick search of the manual and the internet makes it sound simple enough to set the timing for the Chevy. Just set the idle as if you were in drive and then adjust the timing to the factory-specified timing mark. The reality is a little more complex.
All Activity. Classic Chevrolet GMC Pickup Trucks. 1988-1999 Chevrolet & GMC CK GMT400 Platform. Hesitationstumble on acceleration. Sign up for FREE Become a GM-Trucks.com Member Today In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and.
Provide more consistent voltage to eliminate engine rough idle problems Platinum connector threads reduce the number of connection points for faster reaction to change. 1991 Chevy R3500 Silverado; 1991 Chevy V3500 Cheyenne; 1991 Chevy V3500 Silverado; Related Searches. 1991 Chevy CK Pickup After Market Accessories & Parts Online;.
Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and moreChevrolet's best-selling truck will also become its first fully electric truck when the Silverado EV debuts for the 2024 model year. 4 rear main wear ring. i. Class I crate engines generally produce about 10 more horsepower and torque over the.
The number one reason that your Silverado would have low oil pressure would be a lack of oil. The first thing you should do, is check your engine oil level. If the engine oil level appears to be low (or empty), you&x27;ll need to fill it up. Do not drive a vehicle with low engine oil to the store to buy more oil. Running without enough oil to.
Manufactured using the highest grade materials and the. 1,199.70. ACDelco Genuine GM Parts Carburetor Accelerator Cable. 0. 4871322262. Chevy CK Pickup With Code TN 1991, Genuine GM Parts Carburetor Accelerator Cable by ACDelco. Bring your vehicle&x27;s fuel system back to its top shape with this top-notch part.
1 Leakage of an exhaust system. 2 Malfunctioning spark plugs. 3 Faulty sensor performance. 4 Broken ignition coils. 5 Gasket failure. 6 Cracked throttle body. 7 Open circuits and electric fluctuations. 8 Differences in fuel pressure. 9 Symptoms of Chevy Silverado rough idling in cold..
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1. Look for a high engine idle. A common symptom of a faulty idle control valve can be a high idle. Start the engine and look at the tachometer on the dashboard. Most vehicle&x27;s engines will idle at our below one thousand RPMs. If you are familiar with your engine&x27;s normal idle, compare that to its current RPMs.
1992.Silverado K3500 7.4 Liter,Manual Trans. Pulsing Idle. Sometimes accompanied by "Service engine soon" light. it s about 100 RPM pulse. Then it will smooth out and then it will start again. O2 Sensor or some other Sensor , or Fuel Filter.Its been a good long while since I ve changed that. Runs fine other than the Idle Bug.
The 2022 Chevy Silverado comes with a 2.7L turbo-charged 4-cylinder engine and is a great alternative to traditional V8s, according to the car experts at AutoBlog. The professionals also recommend upgrading to the Duramax diesel engine for the best in efficiency. Dependable 1997 Silverado truck for work or play. Many more miles to give. 1991 chevy silverado k2500 big block no spark; 92 k1500 with serious steering issues; Press-on or heat diff bearings still having issues with 92 k1500; 1991 idlerunning problem; 88 chevy 2500 runs poorly (help) &x27;91 K1500, 700R4 won&x27;t shift into 3rd or OD; 92 k1500 hesitationpower loss problem; Truck box replacement lock - make your own.
Chevrolet Silverado 1500 Stalling or Low Engine Idle Speed Due to Dirty Throttle Body - 23 reports. Learn about this problem, why it occurs, and how to fix it. idle problems replaced master flow valve still have same idle problem ,almost cuts off at times and surges when rpm goes up . Report. 2000 Chevrolet Silverado 1500 49,500 mi, Visitor.
High idle 92 silverado with tbi eng. idles high for longer than it should even after eng. has hit running temp. 007 Idle Speed Problems Scan Data for Idle . I need a diagram for a 1994 chevy silverado fuse box. 1994 Chevrolet K1500. Check Out the Latest Top Trucks Report.
To reset my TCM I turn on the key to the on position press the gas pedal to the floor for 10 seconds and then turn the key off then release the gas pedal and wait about 5 minutes to restart the engine. Like. 74) Rob November 4, 2020. I ha e a 05 gmc sierra put a new transmission in put it gear and have no power any idea.
This is a video about rough acceleration rough idle low idle and possible stalling.
1991 Chevrolet Blazer engine problems with 4 complaints from Blazer owners. The worst complaints are broken crank, runs roughly after warmed up, and stalls, irregular idle speed when cold.
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i have a 1995 silverado 5.7liter 350 engine, i replaced the motor,the other motor had 225,000plus miles. after replacing the motor it will not idle,and stalls out when stopping, also noticed that the motor surges, when applying the throttle it will rev up,but it will try to die off unless you let off accelerator a little and reapply. I had a trouble code of 22 t.p.s, I replaced the throttle.
In most Silverados the biggest culprit for this problem is often a faulty fan motor. The guys at the dealer can easily replace the motor for you. 3. AC only blowing hot air. There have been reports that the AC in some Silverados blows only hot air even when set to blow cold air..
Oct 31, 2010 10 Posts. Discussion Starter 1 Oct 31, 2010. Alright, i had posted before about my surging idle. I have a little update. So, the truck is a 92 k1500, has 20,000 miles on the new GM crate 350, new throttle body, rebuild trans about same time eng was put in. I just replaced the Idle Air Control valve because i was told that could be it..
Chevy Silverado. Coolant Leaking problem 5. high volume oil pumps increase the amount of oil flow by an average of 20 through the engine improving oil pressure at idle providing dependable performance every time in every . LLY, LBZ, LMM. 50 8. 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box.
I am working on a truck for the inlaws. its a 1991 r3500 gmc (1980&x27;s body style crew cab dually tbi 454 4l80e) Original motor broke the crank and threw 2 rods. Looks like a bad casting of the crank (looks like the crank had been cracked half way for some time) Ran great, but in its final weeks wa.
Oct 23, 2013 The IAC (Idle Control Valve) is electronically adjusted by the on board computer. There is no way to manually adjust it. If you are having issues with the idle, the best remedy is to replace it ..
Aug 30, 2019 August 30, 2019 by Jason. There are quite a few reasons why your Chevy Silverado could be idling rough. An internal combustion engine needs air, fuel, and spark in order to achieve ignition. When one or more of these variables is off it can lead to a rough idling condition. Most of the time the culprit is going to be the ignition system ..
1991 Chevrolet C3500 Silverado 8 Cyl 7.4L Cab & Chassis, 31 Gallon Fuel Tank, Codes VER, VPU, VRF, VSF, Except High Temp Fuel SDR(8R6) . 1991 Chevrolet C3500 Idle Control Valve. Perform a thorough diagnosis to ensure the pump is the problem before replacing it. Part 1 Check whether the problem is fuel-related Contact Us. Address 4800.
This video was uploaded from an Android phone.
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Step 2 Locate the port for the OBDII reader. The diagnostic link connector, or DLC, is the front door that leads right into the digital innards of your Silverado&x27;s computer. It&x27;s found under the driver&x27;s side dashboard, usually just to the left of the steering column.
This is a video about rough acceleration rough idle low idle and possible stalling.
1991 Chevy C1500 intermittent problem. Failed smog. 169,000 miles, 350 wair, Auto. Intermittent rough idlestall combined with what feels like vacuum assist on brakes going out. Failed smog (low 240 ppm and high speed 1830 ppm hydrocarbons). Replaced plugs,wires,rotor, dist cap and oil change. NO CHANGE. Tried to get computer trouble codes but.
Trans Parts Dec 07, 2021 &183; Haynes Chevrolet Silverado GMC Sierra 1999 Thru 20062WD-4WD (Haynes Repair Manual) Chevrolet and GMC Pick-Ups (1988-2000) (Haynes Repair Manuals) Dodge Pick-ups 2002 thru 2008 (Haynes Repair 1978 Chevy Silverado 'Big 10' short bed patina truck C10 wearing it's factory paint. 701 Transmission Synchromesh All Four.
The high idle was a vacuum leak - the gasket between the TBI and the intake manifold was bad. The underlying problem was the distributor. Apparently these late 80&x27;s early 90&x27;s Chevy 350 TBIs are known for developing microcracks in the Distributor Shaft, which decreases magnetism and can cause this problem. I hope this helps someone in the future.
1991 Chevrolet Silverado K1500 5.7L 350. High idle due to new idle air control valve not fully extending after . 1991 Chevrolet Silverado C1500 Extended Cab w5.7 liter (350) engine, automatic wAC, 98K miles. Problem Pickup starts and runs fine from cold and when moving.
91 Chevy K 1500 350 idle problem. diverdown91. 03-21-2004, 1100 PM. This is a great informational site. Here is what I have 91 Chevy K 1500 Silverado 350 Automatic 88,000. I have replaced plugs, fuel filter, distributor cap, plug wires, Mapp sensor and EGR valve.
hello all,, i have a Chevrolet 1500 Silvrado Z71 2003 with start problem, it will not crank at all,, battery good and took it to the dealer and started fin without any problems there, but some times it will not crank at all, but it will start if i keep try for 10 or more times.
Chevy Silverado. Coolant Leaking problem 5. high volume oil pumps increase the amount of oil flow by an average of 20 through the engine improving oil pressure at idle providing dependable performance every time in every . LLY, LBZ, LMM. 50 8. 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box.
Oct 31, 2010 10 Posts. Discussion Starter 1 Oct 31, 2010. Alright, i had posted before about my surging idle. I have a little update. So, the truck is a 92 k1500, has 20,000 miles on the new GM crate 350, new throttle body, rebuild trans about same time eng was put in. I just replaced the Idle Air Control valve because i was told that could be it..
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Aug 23, 2014 1991 Chevrolet Silverado C1500 Extended Cab w5.7 liter (350) engine, automatic wAC, 98K miles. Problem Pickup starts and runs fine from cold and when moving. As soon as the thermostat opens (temp g read more.
Buy Chevrolet Silverado 1500 Idle Air Control Valve online and get Free Next Day Delivery on qualified purchases, or pick up your parts at a nearby AutoZone today. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. When the air control valve for Chevy Silverado is clogged, it likely to.
Buy Chevrolet Silverado 1500 Idle Air Control Valve online and get Free Next Day Delivery on qualified purchases, or pick up your parts at a nearby AutoZone today. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. When the air control valve for Chevy Silverado is clogged, it likely to.
I had a 89 GT 150 that would load up if you didn't keep the engine level while at idle. 0 out of 5 stars 4. 1977-1978. 129. 6 Billion Through Early Results, Upsizing and Settlement Date for Cash Tender Offers and Planned Redemption of its Remaining 8. 150V NA Here you will find Evinrude service manuals and Evinrude owners manuals for 2011 or newer Evinrude outboard engines..
Customer complaint bad gas mileage and a surging condition at idle, sometimes. Problem excessive corrosion internally on the Engine Coolant Temperature Sens.
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Chevrolet Silverado engine problems arent restricted to faulty sensors. For 1999 to 2017 models, especially the V6 and 5.3-liter V8 engines, oil consumption was a real concern. Were talking about 3 or 4 quarts between oil changes, and sometimes more..
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View all 26 consumer vehicle reviews for the Used 1991 Chevrolet S-10 Blazer on Edmunds, or submit your own review of the 1991 S-10 Blazer. a major vacuum leak, so it doesn&x27;t idle like it.
I have a Quadrajet on a 350300, it was rebuilt but the secondarys will not open when the throttle is wide open. I can manually open the secondarys and everything works fine. All.
Failure Date 05012021. Vehicle starts to shake when driven above 70mph. If brakes are applied to reduce speeds from 75-70 the shaking significantly increases, but decreases to the normal shaking once the brakes are released. See all problems of the 2014 Chevrolet Silverado 1500.
My 1991 Chevy Silverado starts up ok, but has a rough idle until it warms up. Once it is warm, it runs good unless you try to accelerate real fast. It then bogs and backfires thru the Carb and exhaust. Have replaced plugs, PVC valve, cap and rotor, MAP sensor, O2.
Jul 17, 2019 Less Fuel Mileage Your Silverados engine management computer is constantly adjusting the airfuel ratio and timing to get optimal combustion. When the fuel injectors arent working properly it cant do that and fuel mileage suffers. KnockDetonation Detonation can cause your Silverados engine to blow..
Chevy Silverado. Coolant Leaking problem 5. high volume oil pumps increase the amount of oil flow by an average of 20 through the engine improving oil pressure at idle providing dependable performance every time in every . LLY, LBZ, LMM. 50 8. 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box.
The idle switch is connected to the ECU, and the full throttle switch to the AT computer. Jul 10, 2021 &183; About Sensor Chevy Location Speed 1989 Silverado 1991 Chevy Truck 5 speed experts Discussion in 'Transmission & Driveline Topics' started by f-body, Aug 20, 2007.
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Sep 07, 2005 STEP SIX Restart the engine and again shift into drive or neutral. Allow engine to run for at least 5 minutes. STEP SEVEN Shut off engine for 10 seconds and restart. STEP EIGHT That should do it. With engine stabilized and in closed loop, the IAC motor values should be between nine to 12 counts..
The 2022 Chevy Silverado comes with a 2.7L turbo-charged 4-cylinder engine and is a great alternative to traditional V8s, according to the car experts at AutoBlog. The professionals also recommend upgrading to the Duramax diesel engine for the best in efficiency. Dependable 1997 Silverado truck for work or play. Many more miles to give.
GM&x27;s best-selling vehicle and the nearly identical GMC Sierra had been redesigned as early 1988 models. Both came in three series 1500 (12-ton), 2500 (34-ton), and 3500 (1 ton). quot;C" pickups are 2-wheel drive, while "K" designates 4-wheel-drive models. Short-bed trucks (1500 series only) rode a 117.5-inch wheelbase and had a 6.5.
March 2007. Greetings I picked up my 2007 Silverado K1500, 4x4 Crew on Friday, March 9th and noticed the same problem. Rough shift from 1st to 2nd. It had 5 miles on it when delivered. Now at 36 miles the shift is smooth. I attributed the rough shifting to incomplete trans fluid distribution.
Chevy Silverado. Coolant Leaking problem 5. high volume oil pumps increase the amount of oil flow by an average of 20 through the engine improving oil pressure at idle providing dependable performance every time in every . LLY, LBZ, LMM. 50 8. 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box.
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The idle switch is connected to the ECU, and the full throttle switch to the AT computer. Jul 10, 2021 &183; About Sensor Chevy Location Speed 1989 Silverado 1991 Chevy Truck 5 speed experts Discussion in 'Transmission & Driveline Topics' started by f-body, Aug 20, 2007.
After trying several other fixes I finally diagnosed and repaired the problem part. The throttle body gasket had broken and was letting in too much air caus..
My 1991 Chevy Silverado starts up ok, but has a rough idle until it warms up. Once it is warm, it runs good unless you try to accelerate real fast. It then bogs and backfires thru the Carb and exhaust. Have replaced plugs, PVC valve, cap and rotor, MAP sensor, O2 sensor and exhaust pipes..
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Jun 11, 2021 Although Chevrolet has been making trucks since 1918, the Silverado has only been around since 1999. We take a look at the best and worst years. For over a century, Chevrolet has been building trucks to get America to work. The 1918 One-Ton owns the title of being the first purpose-built Chevy truck. Times were different, and the One-Ton barely ..
Oct 31, 2010 10 Posts. Discussion Starter 1 Oct 31, 2010. Alright, i had posted before about my surging idle. I have a little update. So, the truck is a 92 k1500, has 20,000 miles on the new GM crate 350, new throttle body, rebuild trans about same time eng was put in. I just replaced the Idle Air Control valve because i was told that could be it..
Shop for the best Coolant Temperature Sensor for your 1991 Chevrolet C1500 Pickup RWD, and you can place your order online and pick up for free at your local O&x27; . a Check Engine light coming on, rough idle, or poor gas mileage. If your Chevy Silverado is having any of these problems, you can get a replacement coolant temperature sensor from O.
Sep 07, 2005 STEP SIX Restart the engine and again shift into drive or neutral. Allow engine to run for at least 5 minutes. STEP SEVEN Shut off engine for 10 seconds and restart. STEP EIGHT That should do it. With engine stabilized and in closed loop, the IAC motor values should be between nine to 12 counts..
Chevy Silverado. Coolant Leaking problem 5. high volume oil pumps increase the amount of oil flow by an average of 20 through the engine improving oil pressure at idle providing dependable performance every time in every . LLY, LBZ, LMM. 50 8. 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box.
The high idle was a vacuum leak - the gasket between the TBI and the intake manifold was bad. The underlying problem was the distributor. Apparently these late 80&x27;s early 90&x27;s Chevy 350 TBIs are known for developing microcracks in the Distributor Shaft, which decreases magnetism and can cause this problem. I hope this helps someone in the future.
10-08-12 0126 PM - Post 2277892. In response to Chevytech. Try squirting some WD40 around the base of the throttle body and see if the idle changes. If so you might have an leaky throttle body gasket.
Chevrolet transmission problems can be caused by something as simple as low transmission fluid or a dirty filter and even a dead battery. They can also be caused by more serious issues such as internal hydraulic leaks, faulty valve body, failed clutch pack, torque converter, and other problems requiring a complete transmission overhaul or replacement.
1991 Chevrolet Silverado Idle Problems. Ive Got A 91 Silverado 350 With Some Idle Problems. Engine Performance Problem 1991 Chevy Silverado V8 Four Wheel Drive Automatic I Have A 91 Chev 4x4 Truck That Had A 305 Engine In It.
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Chevy Forums FREE technical . 1991 chevy silverado 5.7 surging idle (Topic317796) . View Profile. 11-09-14 0112 PM - Post 2497312 Hi all I have 1991 chevy silverado 5.7 TBI.Im having problem with keeping it running.It starts,buts reves up for 2 seconds then starts surging high and low for about 2 min then.
Mar 26, 2014 So, when the EGR valve gets stuck open, it isn&39;t able to stop the flow of exhaust gas from entering the intake manifold and thus the combustion chamber and your pickup or SUV will idle rough. Here&39;s a few more specific symptoms you&39;ll see Rough idle. Code 32 EGR System Problem. Code 33 MAP Sensor Signal High. Bad gas mileage..
Joined Apr 15, 2007. 226 Posts. 4 &183; Feb 28, 2008. Re extream high idle problem on 1990 chevy 1500, 4.3 v6 TBI. Good afternoon. Yes the pcv valve circuit you decribe is correct.You might call it flow thru filtered crankcase ventilation.TPS is throttle position sensor-probably 3 or 4 wire sensor at throttle linkage.
hello all,, i have a Chevrolet 1500 Silvrado Z71 2003 with start problem, it will not crank at all,, battery good and took it to the dealer and started fin without any problems there, but some times it will not crank at all, but it will start if i keep try for 10 or more times.
Best Throttle body cleaner httpsamzn.to2Yy2Vacnew IAC valve httpsamzn.to2YXCFkRTake out the iac valve, clean the nasty gunk off the part that moves i..
Step 3 - Common problems with the 4L60E. These issues commonly can cause your transmission to slip. See if they apply to you and see what the solution is. Slow, slipping, or no reverse You have a broken sunshell, or circuit issue in the valve body. A broken sunshell requires the transmission to be taken apart.
Step 2 Locate the port for the OBDII reader. The diagnostic link connector, or DLC, is the front door that leads right into the digital innards of your Silverado&x27;s computer. It&x27;s found under the driver&x27;s side dashboard, usually just to the left of the steering column.
1991 CHEVROLET SILVERADO. 5.7L. V8. Ive got a 91 silverado 350 with some idle problems. When you first start it u need to give it throttle for a few seconds to keep er running and when she does stay running she idles really.
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My dakota was surging up and down at idle. I cleaned it and the problem went away. 29-41, 42-48, 49-54 Moderator 1948 Chevy Fleetmaster Coupe Purchased 62010. Stock with rebuilt 52 216 installed May 1966. 1991 Chevy C1500 Silverado 5.7 TBI 700r4 Trans Email Report CowboyTrukr "11th Year" Silver Supporting Member Posts 4793 Loc Salt Lake.
This is a video about rough acceleration rough idle low idle and possible stalling.
91 Chevy K 1500 350 idle problem. diverdown91. 03-21-2004, 1100 PM. This is a great informational site. Here is what I have 91 Chevy K 1500 Silverado 350 Automatic 88,000. I have replaced plugs, fuel filter, distributor cap, plug wires, Mapp sensor and EGR valve. It is a great truck but sporatically while sitting at a stop light getting ready.
In most Silverado&x27;s the biggest culprit for this problem is often a faulty fan motor. The guys at the dealer can easily replace the motor for you. 3. AC only blowing hot air There have been reports that the AC in some Silverado&x27;s blows only hot air even when set to blow cold air.
10-08-12 0126 PM - Post 2277892. In response to Chevytech. Try squirting some WD40 around the base of the throttle body and see if the idle changes. If so you might have an leaky throttle body gasket.
Jun 11, 2021 Although Chevrolet has been making trucks since 1918, the Silverado has only been around since 1999. We take a look at the best and worst years. For over a century, Chevrolet has been building trucks to get America to work. The 1918 One-Ton owns the title of being the first purpose-built Chevy truck. Times were different, and the One-Ton barely ..
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1991 CHEVROLET K1500 PICKUP 5.7L V8 Idle Air Control (IAC) Valve RockAuto.
CK 1500 2500 Silverado 350 5.7L. I put a quarter of a million, near trouble free, miles (water pump, alternator & 4 batteries) on the truck when, after leaving it set for about 3 months, it.
Feb 12, 2017 My 1991 Chevy Silverado pick-up with a 5.7 liter motor hesitates and stumbles at take off or stops at times . runs great on freeway though. My car has 18000 miles. My car has an automatic transmission. If your fuel pressure is low or you have sticking clogged injectors you may get the hesitation and stumble on acceleration but run good at cruise..
Sep 14, 2008 Sep 14, 2008. 1. Recently rebuilt the 454 in my 1990 TBI Burb. I am having a terrible time with getting it to idle smooth. The engine has a little over 500 miles on it. I have spent countless hours going over the engine looking for vacuum leaks and believe every thing is OK on that front. I have replaced the engine temp sensor, the connections ..
Jul 10, 2020 Is there an idle speed or other IAC-related DTC stored Then theres probably a problem with the IAC, a vacuum leak, or a problem with the IAC control circuit. In most cases, cars built after 1996 with onboard diagnostics (OBD) II will set a code for a bad IAC. Many older cars with OBD I will also set a DTC when theres a problem with the IAC..
If your Chevy Silverado&x27;s speedometer is not working, the first place to go would be to check the service engine soon light (if applicable). Now, take it out and see if the cruise control still works. If it does, that&x27;s a pretty good indication that the vehicle speed sensor is just fine. If it doesn&x27;t, it&x27;s time to take a look at it.
Poor idle and running at low-rpm&x27;s, but fine at high rpm&x27;s. 5. L35 and LF6 Engine Knock Problems. The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once.
To reset my TCM I turn on the key to the on position press the gas pedal to the floor for 10 seconds and then turn the key off then release the gas pedal and wait about 5 minutes to restart the engine. Like. 74) Rob November 4, 2020. I ha e a 05 gmc sierra put a new transmission in put it gear and have no power any idea.
January 2001Dear ConsumerThank you for contacting the Center for Auto Safety (CAS) about your GM Suburban, TahoeYukon, full-size CK or SilveradoSierra pickup or BlazerJimmy sport utility vehicle. For years, GM had two Jimmys and two Blazers - one full size and one mid-size. In 1993, the big GMC Jimmy became the Yukon while the smaller S15 Jimmy became the only Jimmy. In 1995, the big.
Put the spring scale 12 way between the alternator and crankshaft pulley, pull on it to 22lbs (10Kg), and check the deflection doesn&x27;t exceed 0.453 in (11.5mm). If it does, readjust so that deflection is in the range 0.28-0.31 in (7-8 mm) for a used belt or 0.256- 0.295 (6.5- 7.5mm) in for a new belt.
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Provide more consistent voltage to eliminate engine rough idle problems Platinum connector threads reduce the number of connection points for faster reaction to change. 1991 Chevy R3500 Silverado; 1991 Chevy V3500 Cheyenne; 1991 Chevy V3500 Silverado; Related Searches. 1991 Chevy CK Pickup After Market Accessories & Parts Online;.
Jan 08, 2016 The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on.