Silverado Idling Low

Although generic, the specific repair steps may vary depending on make. This can be due to many possible factors, including a bad voltage regulator, an alternator that's not in good condition (possible bad diode, bad rotor/stator, poor internal connections), poor/high resistant charging system connections, poor/high resistant grounds, and also the idle surging is enough to cycle the alternator in/out of the charging. And I have another O2 downstream sensor code to clear again. If all of that fails, sray some WD40 around the base of the intake to see if the idle smooths out temporarily. There are 10 1987 Chevrolet Silverados for sale today on ClassicCars. Hi everyone, i bough in 2011 a 2010 sierra 4x4 5,3l brand new, at 8000km i reported a rough idle ( almost undetectable) looking at the water in my water bottle i saw ripples and it stop and ripples again. Free shipping on orders over $50 always makes purchasing a little easier. As more power is applied to the engine via acceleration, the pressure builds up inside the engine. I recently bought a 2008 Silverado 5. Chevrolet Silverado 2500 parts & accessories from JC Whitney. 3L V8 with 200k miles on it. A low rough idle is a CLASSIC sign of a stuck-open EGR valve. 1989 silverado running problems - high idle. 3 with 77k on it. IHateMyJob2004 Lifer. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. There's not always a warning light to alert you of this, but sometimes your car will be driving fine at road speed, only to die when you slow down and stop. These idle up speeds may occur with no input from the customer. 12) If the Duramax engine is cold, it may take a few seconds to a few minutes for the high idle to engage. Smells very rich at start up. 2015 Silverado code P050D I keep getting a P050D code cold start/rough idle. A V8 should idle at 500rpm. There is no Idle Speed Controller with a Drive-by-wire (No throttle cable) vehicle. It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. Just recently say in the last 1 thousand miles its been idling rough once put in gear, occasionally when not in gear. 3 with active fuel management. 3 liter vortech v8 extended cab 6. The Silverado’s larger footprint improves rear-seat comfort in the four-door crew cab, as legroom grows from 40. 17 problems related to power train have been reported for the 2017 Chevrolet Silverado 1500. 3 with 77k on it. Silverado up in Flagstaff over the weekend, and while up there. Rough idling, how do I fix my particular issue? 13 Answers. 6 duramax that smokes bad at idle in drive and smoke goes away around 1800 rpm. After about a minute after starting it, it begins running really rough and rich like a cylinder isnt firing. Same happens if I put it in the manual mode and shift through the gears. After my tune, I drove it on the highway not on the streets so it still does not want to idle in R or D, well it still stalls, not as bad as before the tune, but it is still stalling. It needed a Throttle Body Cleaning - result was RPM increase from 400 to 600. There are no DTC's. But over this past winter, I noticed a significant drop in oil pressure at idle when the engine/oil is hot. 9 inches to 43. 7 at idle? If it still has low pressure at. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. We have a large lineup of the new Chevrolet Silverado 1500 at our Clarion, PA dealership. Correction. When driving, it has extremly low power unt. 3 Silverado with custom turbo and camshaft. The idle speed may be too high at one moment and then too low at other moments. Idle at starting or just a few miles showed no change in pressure. Home » Fact #861 February 23, 2015 Idle Fuel Consumption for Selected Gasoline and Diesel Vehicles Based on a worksheet developed by Argonne National Laboratory, the idle fuel consumption rate for selected gasoline and diesel vehicles with no load (no use of accessories such as air conditioners, fans, etc. Chevrolet Silverado 1500 Engine idle speed is high Inspection at your home or office. Recomended torque converter would be no more than a 3000 for a 4. 2004 Chevrolet Silverado 1500 4. 3L Poor Idle Quality, Misfire, MIL Lamp on Posted to GM Driveability on 12/10/2010 27 Replies This vehicle arrived here after having repairs performed at another shop (plugs, ignition wires & both knock sensors. If all of that fails, sray some WD40 around the base of the intake to see if the idle smooths out temporarily. Correction. Owners of the Chevrolet Silverado and GMC Sierra report the trucks shake while driving, while dealers state the shaking is within normal operating conditions. periodic low amp on gauge, ABS light, idle is very low (when stopped at stop sign it runs between 1-0 rpm) but no check engine light. SYMPTOM SUMMARY The engine idles too high. Rough Idle on my 2004 Chevy Silverado Ive owned my 2004 Silverado truck for alittle over 2 years and this is the - Chevrolet 2004 Silverado question Search Fixya Press enter to search. Although generic, the specific repair steps may vary depending on make/model. After about a minute after starting it, it begins running really rough and rich like a cylinder isnt firing. When you are at speed, the throttle is open from the accelerator pedal under your foot. Some owners may comment on an idle instability, low idle speed or rough idle. See the 2001 Chevrolet Silverado 1500 Extended Cab price range, expert review, consumer reviews, safety ratings, and listings near you. I just bought a 2014 silverado crew cab last week. Just recently say in the last 1 thousand miles its been idling rough once put in gear, occasionally when not in gear. There has been no codes at any time on it. On a modern fuel injected engine, engine idle is controlled by the engine control unit (ECU) and an electrically operated throttle control module. Browse your favorite brands affordable prices free shipping on many items. Chevrolet Silverado 2014-Present: Why is My Truck Idling Rough? Chevy Silverado engines are known for being big but also smooth. When driving, it has extremly low power unt. 850 is minimum. granite blue with the 5. Put gear shifter in "P" (Park), turn off all accessories. I just bought a 2009 Chevy Silverado , have only had for a week and have noticed an irregular fluctuation in idle, also the transmission has lack of a better term jarred a few times and seems to downshift rough sometimes. Typically speaking, for gasoline engines you'll find that per liter of displacement, the engine will burn around 0. Plus, excellent maneuverability and forward visibility, along with advanced technology, help make the toughest work easier to tackle. 3L and stock or 2600 for a 6. Chevy Silverado 2002, Idle Air Control Valve by WVE®. Our certified mobile technicians come to you 7 days a week between 7 AM and 9 PM. Research the 2014 Chevrolet Silverado 1500 at cars. 1989 silverado running problems - high idle Unread post by mikail97 » Sat Jan 26, 2013 1:16 am my 1989 silverado 305 has 383,000 km's on it and it starts up fine but it idles high and low and it fluctuates when it is just sitting there, when you put it in to gear it goes into a low idle and stalls. Push the accelerator pedal, gently raising the engine rpm. If it does, it is sucking air through the base of the intake and will need new intake gaskets. There are no DTC's. 3 tune question I have a 2005 Silverado L33 5. See Important Disclosures Here. Also remembered I got so what sounded like popping out the exhaust if I tried to rev it when it was struggling. 2015 Silverado code P050D I keep getting a P050D code cold start/rough idle. Truck would idle really weird, The RPM's would drop really low. When a vehicle idles low, the vehicle stalls or shakes excessively when the brakes are activated, and this is an indication of a serious engine problem. Either the fuel pump, or a vaccuum leak in the brake booster system somewhere. They did the sensor rebuild kit repair. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. Engine Performance problem 2005 Chevy Silverado V8 Four Wheel Drive Automatic idles about 500rpm but drops to 300rpm or dies when put in gear (drive-reverse) can the idle speed be adjusted?. Get Price Alerts Request More Info. After about a minute after starting it, it begins running really rough and rich like a cylinder isnt firing. Chevrolet Silverado 1500 Low Idle & Engine Stalling. But as the bike is warming up, with the enricher knob pulled out, it can climb up to 1200 RPMs until the motor is fully hot and you push it all the way in. 0 711639835801 | eBay. It my rpms get real low, lights dim and then go up and repeats. These cars had a momementary fuel cutoff when the throttle was released from any throttle position off idle. The refreshed Silverado and Sierra received a new grille, new headlights and new front fascia, with design influences from the 2015 Chevrolet Colorado, as well as all new LED tail lights on the 2016 Silverado LTZ, HIGH COUNTRY, 2016 GMC Sierra SLT and DENALI trim levels while the 2016 Chevy Silverado LT trim levels and below still have the pre. If you need to find new spark plugs for your 5. 7L 350 V8 in the alt. Now, I have a really rough idle for about 10 to 15 seconds after a cold start. hey my 03 silverado 5. Tonight we did 1, 2 but also gave a shot of starting fluid into carb, which started car. IDLE TUNING The following is a collection of idle tuning notes, tips 'n tricks and How-2's for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254,. help with 92 silverado idle/T. It won Motor Trend's Truck of the Year award in 1999, 2001 and 2007. The ECM uses non-volatile memory to keep track of the IAC position when the engine and ECM are turned off. And pressure while driving is fine. 8L engine, 30,000 miles, have same idle issue. General Motors is recalling various SUVs and pickup trucks from its Chevrolet and GMC brands over an issue with the brake pedal that could increase the risk of a crash. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body. The always pesky and always mysterious check engine light has turned on. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn't charge it, when I started it up it ran like you describe for a few days and then it was fine. Rough idling, how do I fix my particular issue? 13 Answers. Average repair cost is $130 at 88,600 miles. Learn about this problem, why it occurs, and how to fix it. 7L has been acting up for a while now. 3 with 77k on it. While driving if you. 8L Poor Idle Quality, Stall Posted to GM Driveability on 4/7/2010 9 Replies this truck idles to low ,around 500,even with a/c on and stalls on low speed turns. A defective oil. On models that have no idle air control motor there is a small machined opening on on the throttle body that prevents the throttle plate from completly closing. Visible shaking of small items in the truck while idling. Question 05 silverado low still within the 3month 3,000mile warranty from chevy dealer. Buy a 1993 Chevrolet C1500 Idle Control Valve at discount prices. 3, 4L60E, 4x4) Idle issues Fuel pressure stabalized after then filter swap at ~32psi "line on", meaning I didn't do anything but hook up the gauge. These cars had a momementary fuel cutoff when the throttle was released from any throttle position off idle. The parts and labor required for this service are. If all other components of the fuel system are working properly and there is still a problem with the idle speed, the screw may be adjusted. If the idle is low and inconsistent, it may be due to an issue with your idle control valve. A little blind idle clip… Results coming soon, what do you think it is??? A post shared by Gwatney Performance (@gwatneyperformance) on Oct 30, 2018 at 11:43am PDT. 3 rough idle Drill the bolt enough to get an extractor to bight, or weld a piece of stock onto it and use the stock to back the bolt out. I have a 2011 Silverado that just went in for a throttle positioning sensor service bulletin. The flickering is a result of voltage surges. It has automatic trans, 4. 3 L Missing and Rough Idle Intermittently I have changed Spark Plugs,Wires ,Coil Packs, and removed Fuel Injectors - Chevrolet 1999 Silverado 1500 question Search Fixya Press enter to search. What didn't work - new air cleaner, replaced OEM with 130K miles; re-charge low battery (maybe it was a battery/alternator issue? It wasn't); 30-minute idle reset after all engine codes erased. Purchased the truck in December and have been having rough idle conditions and what feels to be misfiring(on morning start up, sitting at lights I can feel it, and during the daytime if it has sat for a couple hours). hey my 03 silverado 5. Replied by jshoup on topic 04 chevy silverado with 5. Car Care: Chris Garman explains why your car engine might begin to surge while idling. Rough idling, how do I fix my particular issue? 13 Answers. Plus, excellent maneuverability and forward visibility, along with advanced technology, help make the toughest work easier to tackle. 200K on the engine, low oil pressure… yeah put 15W50 in it and start saving for a new truck (or a used motor)'cause this one's time is short. 8 HIGH IDLE Replaced throttle body , and vehicle will not take idle relearn, idles at - Chevrolet 2007 Silverado 1500 2WD question Search Fixya Press enter to search. After the drive cycle, the engine should be idling normally. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. Also please check out the statistics and reliability analysis of Chevrolet Silverado 1500 based on all problems reported for the Silverado 1500. 1997 Chevy Silverado 1500 Repairs for this problem: i have replaced the coil, the distributor twice, the wires twice,& put 2 other caps on the distributor. while idling it has "rough patches" it seems to go from normal idling to a lil rough shaking then levels out in. Price $29,990. If the valve fails or has any issues it can cause the idle speed to be thrown off. Need to replace your Chevy Silverado 1500 Idle Air Control (IAC) Valve? Then shop at 1A Auto for a Idle Air Control Valve replacement for your Chevy Silverado 1500 at a great price. 2003 Silverado Ext Cab 5. by Kyle McFadden. There are no DTC's. Still, there is. 3 erratic idle My truck idles low and erratic when warm,will often stall when coming to a stop. to/2wAp0oB Seafoam Treatment https://amzn. Re: 99 Silverado 1500 (5. The 2003 Chevrolet Silverado has 7 problems reported for rough idle, runs roughly. 12) If the Duramax engine is cold, it may take a few seconds to a few minutes for the high idle to engage. Maybe 600 rpm is the target. I have a 2000 silverado with low idle, I have all ready cleaned the massive air flow and took the throtle body off and cleaned it, replaced the plugs and wires. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The engine is the 5. Get Price Alerts Request More Info. 8L p0355 won't idle low rpm's Post by [email protected] » Sun Aug 28, 2016 7:44 pm 1999 Chevy Silverado Lt 4. 9 inches to 43. 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. Correction. Ever since i bought it has had a hard time starting except for first thing in the morning. 1-liter gasoline V-8. High Idle Speed Enable and Disable. and I come to a stop. The most recently reported issues are listed below. It used to drive fine after starting. The Daninator 25,886 views. Average repair cost is $130 at 88,600 miles. Idle conditions equal a low air flow, and engine under acceleration indicates a high air flow. 8L or very mild 5. The All-New Silverado 4500HD, 5500HD and 6500HD Chassis Cabs can shoulder the heavy loads and be upfitted † for your business needs. After a couple weeks I noticed that at idle the engine would stumble and my rpms would drop slightly. Most people think that their oil pump is bad but more than. I have a 99 Silverado w/5. 2015 Silverado has developed a rough idle while in drive. If the RPMs are too low the top end of the motor can be starved of oil. Find the most common driver-reported problems that are to blame when a Chevrolet Silverado 1500 has a rough idle. But last week while driving on the highway I noticed that when I put my foot on the gas to accelerate the truck with rev in the RPMs will go up but It wouldn't accelerate until I took my foot off the gas and pressed it again. I'm not sure what the normal idle is. S Well the list goes onn and on. They did the sensor rebuild kit repair. Hi everyone, i bough in 2011 a 2010 sierra 4x4 5,3l brand new, at 8000km i reported a rough idle ( almost undetectable) looking at the water in my water bottle i saw ripples and it stop and ripples again. 8L or very mild 5. Please also check out the statistics and reliability analysis of the 2017 Chevrolet Silverado 1500 based on all problems reported for the 2017 Silverado 1500. hey john i stay in indianapolis and have the above rough idle at any rpm below 900 and hard cold start issues with carbureted 1968 307. 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. What is causing "low idle" in my 2003 Chevy Tahoe, 5. The ECM uses non-volatile memory to keep track of the IAC position when the engine and ECM are turned off. Discuss Correct Idle Speed for 5. I have a 1991 Chevy S-10 2WD p/u. I just bought a 2010 Silverado 1500 with the 4. com Blogs Car Info Our Show Mechanics Files Vehicle Donation 2002 Chevrolet Silverado 1500 - Low Speed ABS Activation. On a modern fuel injected engine, engine idle is controlled by the engine control unit (ECU) and an electrically operated throttle control module. 2015 Silverado has developed a rough idle while in drive. Thereby causing the pressure to read as "normal". It has a problem with a super fast idle after being driven for 20 to 30 minutes at highway speed. Also it needs to relearn the idle position after a battery change. Purchased the truck in December and have been having rough idle conditions and what feels to be misfiring(on morning start up, sitting at lights I can feel it, and during the daytime if it has sat for a couple hours). 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. Answer: As with any air conditioning problem, freon level is the first thing to have checked. Rough Idle (2003 Chevrolet Silverado 1500) Idles rough only when cold,,, was pulling code PO174, replaced MAF, and since still drops a heart beat at idle first thing in the morning at 60 degress or below, otherwise runs like a champ, have recently replaced wires, plugs, Lower O2----- what next?. Owners of the Chevrolet Silverado and GMC Sierra report the trucks shake while driving, while dealers state the shaking is within normal operating conditions. Additionally, step by step procedures are provided for performing the controlled idle speed check and the minimum idle air rate check. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. Find 2014 Chevrolet Silverado 1500 recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. You should have 12 volts going in and out of the low-side pressure switch (if there is sufficient pressure). Anyone else deal with this before. Mine was the same till I did this,hopefully the light will come on then. What didn't work - new air cleaner, replaced OEM with 130K miles; re-charge low battery (maybe it was a battery/alternator issue? It wasn't); 30-minute idle reset after all engine codes erased. 2015 Silverado - Low Oil Pressure @ Idle? I drive a 2015 Chevy Silverado(59k miles) and have noticed lately, that when I'm at a standstill(red light, etc) the oil pressure drops to around 20. When it goes out it causes a very rough idle,very rich. 8 V8 with 40,000 miles. Since the idle air control valve is supposed to manage the idle speed of the engine, a bad valve will certainly throw that out of whack. help with 92 silverado idle/T. it is, and the idle is rough as well. I have a o3 silverado with a 5. 99 up to $48. However, when accelerating or cruising, the pressure returns to ~40. SYMPTOM SUMMARY The engine idles too high. Truck idles roughly and inconsistently. After a couple weeks I noticed that at idle the engine would stumble and my rpms would drop slightly. Although generic, the specific repair steps may vary depending on make. 200K on the engine, low oil pressure… yeah put 15W50 in it and start saving for a new truck (or a used motor)'cause this one's time is short. A Crew Cab Chevy Silverado 1500 can haul 2,039 pounds. (2003 silverado 5. The parts and labor required for this service are. Price $29,990. 8L Poor Idle Quality, Stall Posted to GM Driveability on 10/8/2011 30 Replies Truck does have a low idle 550 to 600 rpm but the main concern is that the truck will stall occasionaly on slow turns. The engine is the 5. Sit in the vehicle with the engine idling and the shifter in park or neutral. A low rough idle is a CLASSIC sign of a stuck-open EGR valve. 7 tbI I have replaced every sensor on motor had igniton timing redone. 3 with 77k on it. When I start it in the AM, It idles at about 1000 RPM, but as soon as I put it in drive the idle will drop to 400. The Chevrolet Silverado is a rugged truck that is made for a tough workload. to/2C9D3qB affiliate links How I fixed a rough idle in my 2005 gmc sierra (part 2). These cars had a momementary fuel cutoff when the throttle was released from any throttle position off idle. Silverado 5. The Daninator 25,886 views. When its in park it idles fine but when in gear like your about to take off or at a red light it idles real rough sounds like its about to die. If this sensor is out of adjustment or is failing, the result could be stalling, idle surge, flat throttle response, hesitation, or erratic engine operation. The idle speed may be too high at one moment and then too low at other moments. It's controlled by the computer. Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. Just low idle at 400rpm and has a slight stutter. I just replaced the ones in my truck due to poor idle quality (just verylow idle though, no surging and it ran fine driving it). Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. It's an automatic and I did this all in park. Also remembered I got so what sounded like popping out the exhaust if I tried to rev it when it was struggling. 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. 2000 silverado 1500: gas pedal. Hi, Guest ! Save cars. But over this past winter, I noticed a significant drop in oil pressure at idle when the engine/oil is hot. 8L Poor Idle Quality, Stall Posted to GM Driveability on 4/7/2010 9 Replies this truck idles to low ,around 500,even with a/c on and stalls on low speed turns. Every other test ran came back as good but was told it's an automatic fail if that indicator light is on. Does not seem to make the idle speed noticably fluctuate on the. My A/c is cold when the vehicle is in motion but when stop and idol the a/c gets warm. Average repair cost is $2,870 at 109,450 miles. 3L V8 with 200k miles on it. What you describe is normal. 12) If the Duramax engine is cold, it may take a few seconds to a few minutes for the high idle to engage. Ive felt this in older trucks that Ive owned but figured a brand new truck wouldnt do this. I took it for a little trip at 55mph for about 10 miles ( I was told to do so to let the tps relearn) and as long as i let it idle down while in gear, its fine. If you drive one, or see one on the road, you can easily spot a truck with injector issues. I have taken to a mechanic friend and he pulled no codes from the truck. How to Check for Fuel Delivery in a Chevy Silverado. 2001 - 2003 6. Chevy uses a simple idle relearn process. I have a 05 chevy silverado with the 4. Silverado is available in several load ranges, but this review focuses on the light-duty 1500 series, which offers payload ratings from 1,215 to 2,040 pounds. Forum discussion: Hopefully someone can help me out here. goes down 1999/2000 silverado 1500 w/ 5. The - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. 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 have to stick the truck in neutral and push the gas pedal to get. You can also file your complaint online by clicking here. Adjusting the idle air screw doesn't seem to have much effect one way or the other. 2015 Silverado - Low Oil Pressure @ Idle? I drive a 2015 Chevy Silverado(59k miles) and have noticed lately, that when I'm at a standstill(red light, etc) the oil pressure drops to around 20. One of General Motors Co. If it hunts like that it could be a lot of things but most common would be. Quick View 42 photos. If this sensor is out of adjustment or is failing, the result could be stalling, idle surge, flat throttle response, hesitation, or erratic engine operation. by Kyle McFadden. 7L TBI? While there are several items that control the idle on a 1992 Chevrolet C1500 5. The irregular idle seems to be worse when the ac is on, I can hear the compressor kick on and off alot. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. The smog technician scanned the computer and found trouble code P0452. We have a large lineup of the new Chevrolet Silverado 1500 at our Clarion, PA dealership. Tl- the contact owns a 2014 Chevrolet Silverado 1500. 3 L Missing and Rough Idle Intermittently I have changed Spark Plugs,Wires ,Coil Packs, and removed Fuel Injectors - Chevrolet 1999 Silverado 1500 question Search Fixya Press enter to search. Is there any way to set up the engine idle speed on a 2004 silverado with a 5. I have a o3 silverado with a 5. Ok so I went to north woods auto because my truck was sucking too much gas and a rough idle. granite blue with the 5. I bought my Tahoe with 77,000 miles on it. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. And pressure while driving is fine. update: 02/15/2003 *important: the factory cruise control option must be present for the high idle switch to function. The engine is the 5. Chevrolet Silverado 1500 Stalling or Low Engine Idle Speed Due to Dirty Throttle Body - 20 reports. no hesitation. Rough Idle on my 2004 Chevy Silverado Ive owned my 2004 Silverado truck for alittle over 2 years and this is the - Chevrolet 2004 Silverado question Search Fixya Press enter to search. 3 rough idle Drill the bolt enough to get an extractor to bight, or weld a piece of stock onto it and use the stock to back the bolt out. I bought my Tahoe with 77,000 miles on it. Aside from high idle issues, low idle and even sporadic stalling can both be attributed to a bad idle control valve. After that my truck worked great. 8L Poor Idle Quality, Stall Posted to GM Driveability on 4/7/2010 9 Replies this truck idles to low ,around 500,even with a/c on and stalls on low speed turns. If it does, it is sucking air through the base of the intake and will need new intake gaskets. 3 Starts fine when cold but cranks excesively when warm and Ineed to step on gas pedal when cranking to start. Idle AIR Control Valve for Chevrolet Silverado 1500 Tahoe GMC Sierra1500 5. But it still has an "idle surge" that it most noticeable in drive with the brakes applied. Learn about this problem, why it occurs, and how to fix it. Along with the additional stretch-out space, Chevy. 2007 CHEVROLET SILVERADO 4. Especialy in the early mornings when it was cold out low to mid 40's. An engine that is idling too high may be caused by a faulty idle air control motor valve that has completely failed or that has simply become weak and is not functioning correctly. The most recently reported issues are listed below. What causes a rough idle? A rough idle can be caused by many different car faults. 2008 Chevrolet Silverado 2500HD Values Select a 2008 Chevrolet Silverado 2500HD trim level New for 2007, the Silverado 2500HD is a full-size heavy-duty pick up truck offered in Regular, Extended or Crew Cab configurations, which holds up to six-passengers. 3 stalling and low rpm idle 7 Answers. Stop by today and take this pickup for a test drive to learn more about it. Boosting Chevy Silverado Truck Gas Mileage. As more power is applied to the engine via acceleration, the pressure builds up inside the engine. Recomended torque converter would be no more than a 3000 for a 4. I have replaced the idle control valve/soleniod but this didn't make a difference. The base tune has been written but I am trying to get the idle in the ball park before commensing any real tuning. This is normal operation. ive replaced the fuel pump, IAC, and the fuel filter.