2007 Chevy Tahoe Rough Idle

The timing belt was changed a while ago and the driver thinks that it started after the timing belt change. I have a couple trucks already. I also tried some techron in case it was the injector. Subject:Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean Throttle Body) #04-06-04-040 - (06/14/2004) Models:2002-2003 Cadillac Escalade, Escalade EXT 2000-2003 Chevrolet Silverado, Suburban, Tahoe 2002-2003 Chevrolet Avalanche 2000-2003 GMC Sierra, Yukon, Yukon XL 2003 Hummer H2. 2007 Chevy Tahoe LTZ Idles rough 5. my balance rates are fine, and from what i have read on the forums it seems like it is my fuel pressure regulator. So you probably see where the pattern is if I disconnect the battery I get the Engine idles rough and dies at idle issue so I'm thinking later today it may run fine again. Learn more about the 2007 Chevrolet Cobalt. When the procedure is followed the engine idle speed will slowly increased to the calibrated high idle speed. Engine rough idle can be caused by a series of problems, or just one faulty component or adjustment. It fluxuates at idle,in drive, with or without the air on. The car starts fine with no problem. Gen 5 & 6 Problems/Service Issues/Troubleshooting. anybody know what causes the 3. com! 2007 Silverado 5. 8 v6 cause these issues along with stalling at light and when shifting into gear. Slightly rough idle? This is a discussion on Slightly rough idle? within the General Help forums, part of the LSx Technical Help Section category; My car is a '99 M6 LS1 pretty much stock with 45k miles on the odometer. Easy to use parts catalog. Ray, hopefully you're right and the coil I put back in, is. The idle got better but is still not right. So the past couple months I've noticed my truck has a really rough idle in the mornings when it is cold out, to the point where it has even died before. Reset computer codes. The engine has one problem in that it will not keep a steady idle. NHTSA ID Number: 10126352 Manufacturer Communication Number: PI0850A Summary This preliminary informational bulletin provides repair information to correct a customer concern of a whistle noise heard from the engine compartment and/or the vehicle runs rough with the service engine light on and/or DTC P0171 set. Been battling the rough idle, its turned into a random misfire under light load as well as rougher idle. I'm working on fixing a 2007 Chevrolet Aveo for a relative. I have a 1989 Chevrolet Camaro 5. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Other issue is the truck lurches when changing for v-4 to v-8 mode. Hello I'm having some problems with an 09 Cobalt LT After the car has been running and is up to temp, when I restart the car it tends to have a rough Rough Idle and Rough Stops 09 Cobalt - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts. Chevrolet Infotainment System functionality varies by model. When a vehicle begins to idle rough or stall, the idle system requires service. The wiring circuits in your vehicle are protected from short circuits by fuses and circuit breakers. As for the LT1, I agree that it might have a tiny bit of an idle misfire but not a "significant rough idle. You guessed it the head was bad. The least expensive way to test this is to purchase a fuel additive designed to clean injectors. com! 2007 Silverado 5. The special warranty coverage for this will only cover it if it pulls the right misfire code. I have a couple trucks already. If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. Too much of either can result in severe running issues. 2007 Chevy Tahoe LTZ Idles rough 5. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. AUG 2014-- General Motors LLC (GM) is recalling certain model year 2007-2011 Chevrolet Silverado HD 2500/3500 trucks manufactured January 18, 2007, to June 22, 2011, and GMC Sierra HD 2500/3500 trucks manufactured January 22, 2007, to June 21, 2011, and equipped with an auxiliary battery. Learn more about Chevrolet Silverado 2500 at the Edmunds. The idle speed will return to normal if any of the following conditions occur: There is brake, clutch, or throttle input from the driver. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. One of the most common problems is likely a rough running or poorly idling engine. my question is will a combination of a toque converter out of a v6 700r4 stall be too low (1000-1100) a oem alternator from 3. I'm stuck on this one. It keeps fouling out spark plugs and then running rough when it is approaching low idle. NHTSA ID Number: 10126352 Manufacturer Communication Number: PI0850A Summary This preliminary informational bulletin provides repair information to correct a customer concern of a whistle noise heard from the engine compartment and/or the vehicle runs rough with the service engine light on and/or DTC P0171 set. Forums > 2007 + Chevrolet Tahoe / GMC Yukon / Cadillac Esca > Technical Discussions > Rough Idle on Denali Discussion in ' Technical Discussions ' started by GMCYukonDenali , Jun 29, 2007. The internal combustion engine requires a precise mixture of fuel and air to run correctly. 7L to idle rough? here are some possible reasons i found while searching lost: 1) 90 degree v-6's idle rough 2) motors were manufactured slightly out of balance 3) the 3. The vehicle was taken to a dealer, who diagnosed that the pistons needed to be replaced and that the motor needed to be rebuilt. Got a recall notice from Chevrolet to bring it in and have it reprogrammed. Compare 2007 Chevrolet Silverado 1500 Fuel Injection Idle Air Control Valve brands. Duramax Fourth Generation: 2007. However, the most likely causes come from the basic operating components that control fuel and ignition. P0301 Trouble Code Diagnosis- Chevy Tahoe. Rough Idle and/or Stalling When Sitting at a Stop - 2015-2016 Chevrolet Colorado & GMC Canyon oemdtc August 11, 2018 June 20, 2019 Diagnostic Tips NHTSA ID Number: 10118931. It depends on how serious the misfire is. Made one stop on the way home, and sure enough, when I restarted the engine, P0305 again. So problem is this rough and low rpm idle that drops to 550rpm once stopped at a red light but when I run the a/c the idle comes up to the normal for that car at 700rpm however this rough idle is 2007 Chevrolet Impala LS FWD. com : Car complaints, car problems and defect information. Engine related discussion ONLY. Been battling the rough idle, its turned into a random misfire under light load as well as rougher idle. Hey all, Lately (within the last couple of months) I have developed a rough idle in the '09. THE FIX IS. (No dmv fees other than what California charges). If the code comes back you may have to replace the Electric Throttle Control Actuator (Motor) to repair the problem. 2001 Dodge Ram 2500 long bed - regular cab - 2 wheel drive. 2007 Chevy Cobalt LT, Automatic Transmission, 137k miles. Problem with my = 2004 Chevy Colorado. Got a recall notice from Chevrolet to bring it in and have it reprogrammed. com's editors have put plenty of miles in numerous examples of these big GM trucks, from the Cadillac Escalade to the Chevy Tahoe, and have never experienced anything like what Watkins. A second “rough idle” TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. P0304 Rough Idle OEM Issues. Engine has a misifre. I also cleaned the Throttle body. Any ideal of what causing that and what is cylinder six because my service engine light is on and this code is popping up. 6L Duramax diesel engine & associated components. My 2007 cobalt lt idles rough, but if I put it in neutral the vibration stops. Rough Idle 1988 Chevy Pickup 5. So I gimped her home last night and just parked her in the garage. It drove just fine to work but in the morning after my shift when I started it there was an odd sound (the sound of cylinder misfire) and then a rough idle. com; Register; Advertising; Link To Us; Contact Us; Forums. 2800rpm I tried to relearn the Idle with Snap-on Modis. On later model vehicles, a check engine light may accompany the issue. When idle speed changes significantly or stalling on throttle release occurs, a problem is indicated. 3 liter with just over 60,000 miles on it I did for a used car lot. A rough idle on 1990 Lincoln Town car with a 5 liter engine can be caused by the fuel injectors. So problem is this rough and low rpm idle that drops to 550rpm once stopped at a red light but when I run the a/c the idle comes up to the normal for that car at 700rpm however this rough idle is 2007 Chevrolet Impala LS FWD. Slightly rough idle? This is a discussion on Slightly rough idle? within the General Help forums, part of the LSx Technical Help Section category; My car is a '99 M6 LS1 pretty much stock with 45k miles on the odometer. The top supplying country or region is China, which supply 100% of idle air control valve for chevrolet respectively. Engine related discussion ONLY. Owners may unknowingly draw too much current through the. When this happens, the SERVICE STABILITRAK & SERVICE TRACTION CONTROL idiot lights come up as well as a flasing check engine light. I have a friend who is a Chevy Mechanic and he put his computer on it and said that the pump was kicking codes. Hi, Guest ! Save cars. At this point, I'm 85% sure I'm putting an engine in this thing. com offers 612 idle air control valve for chevrolet products. There are quite a few things that can cause the P0301 trouble code to trigger the Chevy Tahoe. The condition is intermittent, but can be relatively easy to duplicate at idle, with the engine at operating temperature, in gear, and with the A/C on, although the A/C does not need to be on. Got an intermittent low and rough idle on my 2007 Honda Civic LX. Tune up, replaced sensors, replaced spark plugs multiple times, replaced plug cores. SYMPTOM SUMMARY The engine idles too high. Chevrolet Silverado 2007-2013: Why is My Check Engine Light On? Part of what makes the "check engine" light (CEL) so maddening is that it doesn't tell you exactly what's wrong with your pickup. Other issue is the truck lurches when changing for v-4 to v-8 mode. Engine Idle Is Too Low Or Stalls Dirty Throttle Body. About a month ago the check engine light came on, and we noticed it would be a bit rough at idle, but the problem was only intermittent and the check engine light went off for a bit. It fluxuates at idle,in drive, with or without the air on. I let my 2010 Acadia with 94K miles get to about 1/8 a tank of gas. On later model vehicles, a check engine light may accompany the issue. 2800rpm I tried to relearn the Idle with Snap-on Modis. Electronic Stability Control Problem on the 2007 CHEVROLET SUBURBAN 1500. I have a 2007 Chevrolet Suburban LTZ with a 5. I know it's not the best idea, but I can't load all my tools, parts and ladder in my car. NEWS: GM is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban and Tahoe, GMC Sierra 1500, Yukon and Yukon XL vehicles, and 2009-2011 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles; AIR BAGS. Rough Idle and/or Stalling When Sitting at a Stop - 2015-2016 Chevrolet Colorado & GMC Canyon oemdtc August 11, 2018 June 20, 2019 Diagnostic Tips NHTSA ID Number: 10118931. Gunk and deposits find their way into both components causing reduced airflow. The symptoms include stalling when coming to a stop, or very low idle after starting, or stalling if the throttle is "blipped" (opened and closed quickly). The vehicle was repaired but the failure persisted. There is a factory service bulletin for the following Chevrolet models: 2006-2008 Chevrolet Trail Blazer 2007-2008 Chevrolet Avalanche. com; Register; Advertising; Link To Us; Contact Us; Forums. I'm stuck on this one. I Have A 1993 Chevrolet Silverado With A 4. To help you narrow down your diagnostic approach, here's a look at the most common causes of the CEL in the Chevrolet Silverado 1500. Upon starting, the engine would idle very rough for up to 20 seconds. If you have problems with your 5-cyl. Chevrolet/gmc: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. Slightly rough idle? This is a discussion on Slightly rough idle? within the General Help forums, part of the LSx Technical Help Section category; My car is a '99 M6 LS1 pretty much stock with 45k miles on the odometer. Reader Question: I was wondering if you might be able to help me out. Why Is My Engine Knocking When My Car Is Idle? When an engine knocks, one of the likely causes is low-quality fuel. Runs fine when accelerating. Checked the injector that it was getting signal. This valve is controlled by the vehicle's computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. NAIOA - 2000-2005 General Impala Discussion - Rough start / idle - crank sensor? - Does anyone have any other ideas what might be causing this? - 2002 Impala LS (3800 V6) 113k miles Most of the time when I start the car, the idle is erratic for the first. My car is having a rough idle at about 500 rpm and will even die at light. However, the most likely causes come from the basic operating components that control fuel and ignition. A second "rough idle" TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. Idle is most rough, when the engine is first started in the a. It currently has 48,900 and I have meticulous records and service. I can hear the engine "laboring" at one spot and it lunges forward at that exact spot. Let me use an idle complaint that had me on the ropes as an example. Checked the spark to the plug. The check engine light has come on twice, but went out on the. This is my fourth Silverado since 2005 and am very unhappy. and also my truck will not idel right until it hit operanting temp i have replace the coolant temp sensor and the egr valve i have a 92 chevy k-1500 with a 350 if any one any idea of what this is. It turns back over but not easily. Average failure mileage is 1,500 miles. I have a 2007 Escalade that having a noticeable rough idle, both in park and drive. Fuel of low quality or a low octane rating results in many different problems in the engine. Subject:Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean Throttle Body) #04-06-04-040 - (06/14/2004) Models:2002-2003 Cadillac Escalade, Escalade EXT 2000-2003 Chevrolet Silverado, Suburban, Tahoe 2002-2003 Chevrolet Avalanche 2000-2003 GMC Sierra, Yukon, Yukon XL 2003 Hummer H2. I have changed the plugs and Swapped that coil / wire but still get a misfire. At this point, I'm 85% sure I'm putting an engine in this thing. Too much of either can result in severe running issues. Idles just fine when in Park, but when I shift it in to Drive and then come to a stop in traffic or stop light the idle is rough and seems like truck is about to stop. I have a couple trucks already. This is a discussion on Rough Idle within the General Help forums, part of the LSx Technical Help Section category; For the last week or so I have noticed a rough idle in my Z28, After driving when I put. Hi, Guest ! Save cars. I Have A 1993 Chevrolet Silverado With A 4. Detailed features and specs for the Used 2007 Chevrolet Uplander including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. 2007 Chevy Cobalt LT, Automatic Transmission, 137k miles. Learn more about Chevrolet Silverado 2500 at the Edmunds. com! 2007 Silverado 5. Affect are mainly seen at idle because if you think about, the peddle is depressed more when driving and those minor differences in readings to the ecu are not serious enough to be visible. Have title and release in hand. not something that would make you think wow, something is wrong. This valve is controlled by the vehicle’s computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. GM: Chevrolet, GMC, Buick, Cadillac If you shop at Amazon. This is a discussion on Rough Idle within the General Help forums, part of the LSx Technical Help Section category; For the last week or so I have noticed a rough idle in my Z28, After driving when I put. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. I'm guessing this has something to do with clutch not fully engaging? I should add that the cold weather in Colorado has made this problem appear. I just took my 2006 Colorado into the dealer due to rough idle also. 3 liter rough idle when cold. When a vehicle begins to idle rough or stall, the idle system requires service. **New wheels 2018 OEM Chevy 20” (black gloss) **New tires Yokohama performance level tires. If the idle is dipping, ck and clean the IAC and throttle body. iv got an 08 4. Would have been around $3000. A wide variety of idle air control valve for chevrolet options are available to you,. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices. I have a 1989 Chevrolet Camaro 5. A rough idle on 1990 Lincoln Town car with a 5 liter engine can be caused by the fuel injectors. Hello Doug, I am having a rough idle and and misfire sensor on Cylinder 6 on my 2007 Chevy Tahoe. It almost sounds like it is cammed because it has a slight lope to it. To see how frequently 2007 Chevrolet Cobalt problems occur, check out our car reliability stats. Is a bad cylinder head or valve the problem. Easy to use parts catalog. Cuts off when in reverse or moving slowly forward. 3L rough idle, anybody else has the same ? I notice a very very light vibration/rough idle on my 07 non flex fuel while sitting still and in park. I Have A 1993 Chevrolet Silverado With A 4. We felt pretty confident we were looking at a blown cylinder head gasket at this point; but, we wanted to "test and not guess". Read more about the 2004 Chevrolet Silverado from the truck and SUV experts at Truck Trend. I know it's not the best idea, but I can't load all my tools, parts and ladder in my car. The engine is back to stock (no Volant or tune). GM: Chevrolet, GMC, Buick, Cadillac If you shop at Amazon. 20 New Gmc Yukon Sierra Chevy Silverado Tahoe Chrome Wheels Nexen. Reader Question: I was wondering if you might be able to help me out. the engine turned over and ran at a rough idle, clearly not on all 8 cylinders. 7L is an odd fire v-6 and when the odd cylinder fires it causes vibration (rough idle) i don't know if any of the above are true?. Re: Rough Idle and Hesitation - Please Help As silverspectre said, 2007 2. 3 liter rough idle when cold. I have changed the plugs and Swapped that coil / wire but still get a misfire. come on in today and come take it for a test drive before its gone!!!. DieselPlace. 7L is an odd fire v-6 and when the odd cylinder fires it causes vibration (rough idle) i don't know if any of the above are true?. I went to auto zone to see if it was a misfire but the scanner returned P0014 which could have been multiple things but the guy at the counter said most common is the cam position sensor. 3 L Idles rough but runs ok 5. Made one stop on the way home, and sure enough, when I restarted the engine, P0305 again. Got an intermittent low and rough idle on my 2007 Honda Civic LX. The failure recurred whenever the vehicle was in operation. Turning off AFM/DOD didn't fix mine. I'm sure my IAC valve should be cleaned but it's a PIA to get to so I'll live with less than perfect idle, but acceptable idle from a 4 cyl. Subject:Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean Throttle Body) #04-06-04-040 - (06/14/2004) Models:2002-2003 Cadillac Escalade, Escalade EXT 2000-2003 Chevrolet Silverado, Suburban, Tahoe 2002-2003 Chevrolet Avalanche 2000-2003 GMC Sierra, Yukon, Yukon XL 2003 Hummer H2. 3 Liter FIXED rough idling by stoping UNMETERED Air inflow ⭐ 2007 Chevy Tahoe SO SOME UNMETERED AIR WAS CAUSING MY ENGINE TO ROUGH IDLE. I took it to the dealership and they found a bad spark plug and changed it. The engine is back to stock (no Volant or tune). What does the oil pressure switch have to do with the rough idle? Could it be that it finally failed completely and now I have rough idle? I've had people tell me EGR or o2 sensor but I don't think that's it. This valve is controlled by the vehicle’s computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. Fired the truck up and it still idles rough with blinking CEL. Compression. 8litre, 2wd 150000 miles Braking vibration Brake pads Vibration Noise Brake pedal I have this problem when I apply my brakes, just as I'm about to stop my brake pedal has a slight vibration and creaking sound that is driving me crazy. Steering becomes hard if making u-turn or tight turn. With the amount of dirt and debris involved, it's worth your time to keep an eye on the Chevrolet Tahoe idle air control valve. The check engine, electronic stability control, check suspension, and traction control warning lights illuminated. My Avalanche is a 2008 (31,000 miles) and about 3-4 days ago, I noticed a rough idle. My car has 170000 miles. Cars idling rough at stops can have many causes, including damaged sparkplugs, improperly installed sparkplugs or damage to the car's fuel injector, carburetor, vacuum hoses or ignition wires. Turning off AFM/DOD didn't fix mine. I have a 1989 Chevrolet Camaro 5. it runs a little rough at idle. Due to my work load, I've put about 2500 miles on it running on 7. At first I thought it was the base from from my stereo, but noticed the same occasional vibration when I turned the radio off. A second “rough idle” TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. No service codes either and no engine light. com : Car complaints, car problems and defect information. When your engine idles rough and the exhaust has the smell of raw, unburned gasoline, it is suffering from a rich condition or or incomplete combustion. Well I'm back to square one. So if you have a rough idle and a check engine light and it falls within the warranty coverage then i would go to a Chevy/GMC dealership and have them check it out. come on in today and come take it for a test drive before its gone!!!. View all 6 consumer vehicle reviews for the Used 2010 Chevrolet Avalanche on Edmunds, or submit your own review of the 2010 Avalanche. Easy to use parts catalog. While driving her down one of my back roads, my ol 235' six just decided to stop. I'm sure my IAC valve should be cleaned but it's a PIA to get to so I'll live with less than perfect idle, but acceptable idle from a 4 cyl. Read reviews, browse our car inventory. I have a 2005 Toyota Vitz with a 1KR-FE engine. If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. The battery was disconnected for probably 3 hours. DieselPlace. The failure recurred whenever the vehicle was in operation. They are going to replace it for free. Find CHEVROLET 5. I’m going to use a 2003 Chevrolet Tahoe with a 5. The vehicle may exhibit a condition that can be described as an erratic idle, idle surge, rough run, or near stall. CarComplaints. Requires compatible iPhone and data plan rates apply. Well I'm back to square one. My 2007 Camry CE idle rough in drive with a brakes on. Some engines just idle rough. Runs fine when accelerating. If the idle is dipping, ck and clean the IAC and throttle body. So you probably see where the pattern is if I disconnect the battery I get the Engine idles rough and dies at idle issue so I'm thinking later today it may run fine again. the car is not over heating or having any other apparent mechanical issues. After running fine last night, and for a good portion of the day, I was on my way home from Clearwater and the idle became rough. View all 6 consumer vehicle reviews for the Used 2010 Chevrolet Avalanche on Edmunds, or submit your own review of the 2010 Avalanche. any easy fix. I think the first TSB stands a better chance to at least be a possible cause. engine idling rough make sure you tell the dealer that you know of this problem. FIXED ROUGH IDLING 07 Chevy Avalance 5. The 2007 Chevrolet HHR has 1 problems reported for running rough/poor gas mileage. P0506 CHEVROLET Meaning The Idle Air Control valve is a Powertrain Control Module controlled stepper motor located on the throttle body. I drove it about 40 miles this morning and the service stabiltrack and service traction control reading came up on the dash. P0304 Rough Idle OEM Issues. 7L/350 Standard Motor Idle Air Control (IAC) Valves and get Free Shipping on Orders Over $99 at Summit Racing! Standard Motor Products replacement idle air control valves help you get maximum fuel efficiency and powe. It drove just fine to work but in the morning after my shift when I started it there was an odd sound (the sound of cylinder misfire) and then a rough idle. Turning off AFM/DOD didn't fix mine. If the idle is dipping, ck and clean the IAC and throttle body. Buy a 2007 Chevrolet Trailblazer Idle Air Control Valve Connector at discount prices. If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. As long as it was over 1000 rpm while driving it was fine but once I came to a stop it began idling so rough that the front end was rocking lightly. of the time it's. This problem has been getting worse over the last 2 years. I think the first TSB stands a better chance to at least be a possible cause. anybody know what causes the 3. Electronic Stability Control Problem on the 2007 CHEVROLET SUBURBAN 1500. I'm guessing this has something to do with clutch not fully engaging? I should add that the cold weather in Colorado has made this problem appear. When driving down the road I can feel it a little bit. 2800rpm I tried to relearn the Idle with Snap-on Modis. So the past couple months I've noticed my truck has a really rough idle in the mornings when it is cold out, to the point where it has even died before. While driving her down one of my back roads, my ol 235' six just decided to stop. Owners may unknowingly draw too much current through the. come on in today and come take it for a test drive before its gone!!!. of the time it's. com! 2007 Silverado 5. Rough Idle When Cold - Goes Away after warm up OEM Issues Rough Idle When Cold - Goes Away after warm up - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum Home. The engine completely stalled one time as I was braking coming off of a freeway off-ramp into a turn. Been battling the rough idle, its turned into a random misfire under light load as well as rougher idle. Idles rough. The contact owns a 2007 Chevrolet Tahoe. Got an intermittent low and rough idle on my 2007 Honda Civic LX. Changed the oil and the plugs now runs rough. When idling, there is a rough idle from time to time when the car is in Park, Neutral or when stopping in traffic, with vibrations shaking the car. but definetly noticeable. The engine completely stalled one time as I was braking coming off of a freeway off-ramp into a turn. If I am going to have to run 89 Octane, in order to obtain a smooth idle, then GM needs to rewrite (and send notices to every truck owner as well) their specs. Runs fine when accelerating. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices. Checked the spark to the plug. Took it as a trade. Chevrolet/gmc: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. Compare 2007 Chevrolet Silverado 1500 Fuel Injection Idle Air Control Valve brands. When the procedure is followed the engine idle speed will slowly increased to the calibrated high idle speed. After refueling, I had to crank the engine over for maybe 5 seconds when the engine usually starts right away. 3 L idles rough but runs ok - Chevrolet Tahoe question. 3 Liter FIXED rough idling by stoping UNMETERED Air inflow ⭐ 2007 Chevy Tahoe SO SOME UNMETERED AIR WAS CAUSING MY ENGINE TO ROUGH IDLE. For vacuum leaks - shouldnt they cause an actual idle fluctuation? Shouldnt my idle show constantly higher on the tac, or maybe even an idle fluctuation? My idle is a constant ~500rpm at idle in drive, yet there is a rough intermittent vibration coming from the engine. The short cab is big enough to carry items from trips to estate sales, lumber yards, and big box stores. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. 7L/350 Standard Motor Idle Air Control (IAC) Valves and get Free Shipping on Orders Over $99 at Summit Racing! Standard Motor Products replacement idle air control valves help you get maximum fuel efficiency and powe. It depends on how serious the misfire is. The recall summary will inform you of the consequences for having a defective component. 8 v6 cause these issues along with stalling at light and when shifting into gear. Slightly rough idle? This is a discussion on Slightly rough idle? within the General Help forums, part of the LSx Technical Help Section category; My car is a '99 M6 LS1 pretty much stock with 45k miles on the odometer. I replaced the Brake switch due to it showing Applied all the time. Steering becomes hard if making u-turn or tight turn. 2800rpm I tried to relearn the Idle with Snap-on Modis. Duramax Fourth Generation: 2007. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. cleaned intake with gum-out just engine running sucking it in. 2007 Chevy Tahoe LTZ Idles rough 5. This is my fourth Silverado since 2005 and am very unhappy. When it is sitting idling it almost feels like a misfire, an engine stutter, or bad gas. We have a 2003 Chevrolet Tahoe, 37500 miles (1500 miles out of manufacturer warranty), we bough the truck back in March with 33k. 2008 Tahoe rough idle cheap simple fix P0300 Random/multiple cylinder misfire,due to low compression P0171,P0174 2007 chevy 2002 Chevrolet Z71 5. I have changed the plugs, swapped plug wires, coils and injectors. No service codes either and no engine light. So problem is this rough and low rpm idle that drops to 550rpm once stopped at a red light but when I run the a/c the idle comes up to the normal for that car at 700rpm however this rough idle is 2007 Chevrolet Impala LS FWD. GM: Chevrolet, GMC, Buick, Cadillac If you shop at Amazon. Finding the problem can be daunting, especially with so many sensors and switching valves involved. Most often an input sensor has failed or the throttle body has a problem. Subject:Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean Throttle Body) #04-06-04-040 - (06/14/2004) Models:2002-2003 Cadillac Escalade, Escalade EXT 2000-2003 Chevrolet Silverado, Suburban, Tahoe 2002-2003 Chevrolet Avalanche 2000-2003 GMC Sierra, Yukon, Yukon XL 2003 Hummer H2. I have 16,000 miles. It drove just fine to work but in the morning after my shift when I started it there was an odd sound (the sound of cylinder misfire) and then a rough idle. A second “rough idle” TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. One of the most common problems is likely a rough running or poorly idling engine. Had injectors serviced and it did not seem to help. With the amount of dirt and debris involved, it's worth your time to keep an eye on the Chevrolet Tahoe idle air control valve. 2007 Chevy Tahoe LTZ 5.