2016 Silverado Cold Start Rough Idle

Trouble Code. No, the cold knock is nowhere near as bad as the 5. General motors llc (gm) is recalling certain model year 2015-2016 chevrolet silverado 2500 and 3500 heavy duty trucks manufactured october 1, 2013, to february 1, 2016, 2015-2016 chevrolet tahoe police pursuit vehicles (ppv) manufactured march 1, 2014, to february 1, 2016, and 2015-2016 gmc sierra 2500 and 3500 heavy duty trucks manufactured october. She made about a five minute stop and when she restarted the vehicle, no problems at all. I attached my stock tune and the vve tune i did. smells like unburnt fuel please help Hey guys I picked up a 2001 TDI 5 speed that had a bit of a rough life. i have a 1995 silverado 5. EcoBoosted: Adding an Easy 60 HP to Ford’s Twin-Turbo 3. Chevy Silverado 2500 HD / 3500 HD 6. It will go from very low rpm's, about 500, and start studdering as if it wants to turn off then rev it. 2000 chevy silverado 1500 starts cold but rough wont die but revs up and down but only when first started when warm rest - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. 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. You would think that a brand new car wouldn’t have this issue, and that they could do something to fix a rough idle. The Chevy Tahoe is a full-size SUV. to diagnose and repair vehicles with a rough idle and/or vibration at idle in drive. 2002 Chevrolet Z71 5. Q: replaced idle control sensor no vaccum leaks but truck will not idle when the engine is cold? My car has 270000 miles. 2011 Chevrolet Silverado 1500 Engine Technical Service Bulletins (TSBs). Already took off TB from motor and cleaned it with a tooth brush and TB cleaner, replaced temp sensor, cleaned MAF sensor, there is no IAC valve (sensor) on this engine. its garage kept and not even "cold", but the first startup of the day this occurs. I've checked plug wires, sprayed sea foam, checked alternator. Read more Chevrolet reviews to learn about other models. Indeed, a car that shows the symptoms of a worn-out speed sensor can bring about other related symptoms to other parts of the car, such as a faulty throttle position sensor or even a malfunctioning coil pack. I purchased a 2016 Duramax GMC Canyon Crew Cab SLT on June 9, 2016 and it currently has rougly 13,000 miles on it. There are many problems that can result in a Chevy Silverado's failure to start, making diagnosing the trouble even more frustrating. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc. I own a 2000 Silverado and it has a rough idle. That statement hold for my 4th floor work office as well. Check Engine Light On Problems of Chevrolet Silverado Chevrolet Silverado owners have reported 27 problems related to check engine light on (under the engine and engine cooling category). ca 05/21/18 NHTSA ID: 10137268 TSB ID: 17NA204 This technical bulletin provides a procedure to replace the fuel tank and internal parts if found expanding and contacting the drive shaft. When I would try and start it - I could hear a loud noise, like a bad pump, back by the left rear tire and the truck would start for like 5 seconds - then shut down. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. The bed was just brought out of storage, cleaned up and put back on the t. Dealer says everything runs up to the computer spec so it is "just the nature of the beast. With a higher compression ratio than the standard 5. rough idle, extended crank, or crank no start in some cases. 3 with 77k on it. The front end is slightly revised, with better-integrated headlights, including bi-halogen projectors and LED accents. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. It would crank, then no noise at all for a split second, then it would fire. 0L is becoming more common and getting harder to diagnose. At 10:1 compression, this engine (all variants) cannot run efficiently on 87 octane. 2, Z22XE ,Automatic,50967miles, in today engine light on fault codes stored (P0170 fuel trim malfuction bank 1) (P0340 camshaft position sensor A bank 1 circuit malfunction ) (P1781 engine torque signal circuit )(P0706 trans range sensor CKT range 1 perf) i have erased all faults took out for road test let it sit for an hour start it again runs rough at idle some. The truck runs rough at idle, though smoothes out as the rpm's rise. It runs awful until up to operating temp and still lacks power then. 8T sounds like it is going to die when i cold start it, but in a couple of seconds the idle goes high to about 1200rpm. Rpm drops below 300 rpm then goes back to 490 rpm. A second “rough idle” TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. 3 liter v8 with 18,000 miles seems to idle rough. After the engine got warmed the tapping noise will slowly disappeared, also if I pressed the throttle during that loud noise and keep it in 2000rpm for about 3-5 second. the first 3-5 seconds the idle is smooth, then goes shaky. Application. In cold weather my 2000 sierra starts, reves up idles back down to rough idle and continues to do so for about a minute. Average failure mileage is 100 miles. feb 26, 2016 - agawam, ma - engine vehicle has stalled upon initial acceleration after a stop. It will go from very low rpm's, about 500, and start studdering as if it wants to turn off then rev it. Once the engine warms up, the idle settles at constant idle speed. P050d Cold Start idle problems. Ask Question Asked 2 years, 8 months ago. Average failure mileage is 15,200 miles. So the sage continues. 07 model , on rare occasions after cold start and driving about 2 blocks and setting at stoplite. 621 113 lsa 4. com! 2015 tahoe woes P050D cold start / rough idle Also including Oldsmobile, Geo, Hummer, and Saturn (North American brands). Typically, the temps have to be 40 degrees or below for. 08 Silverado 5. A vacuum leak on a fuel injected engine will cause high idle. The 2016 Chevrolet Colorado has 13 problems reported for engine stall. Getting ready for a trip so i'd like to remedy this issue asap. It runs great other than it idles rough when first started until it gets to normal operating temperature then it idles fine. When I first start it in the morning a real big cloud of smoke will come out and then it stops at idle. They claim no codes came up therefore no issue. It seems rough to me too, and a little noisy but apparently that's how it is. To my understanding, when engine is cold, the EGR valve should be closed right? If there is a vacuum leak in the valve or if it is open, this would cause the rough idle at startup with. It would crank, then no noise at all for a split second, then it would fire. Mine had a bad idle at cold start and would miss. Vehicle sputters on cold start on cold mornings. I took it in to the shop for rough idle. Car Stall Problems of Chevrolet Colorado Chevrolet Colorado owners have reported 21 problems related to car stall (under the engine and engine cooling category). You'll need a scan tool to monitor which cylinder is misfiring during a cold start. so i recently posted about low pressure oil light. Cold starting was becoming more and more difficult and until the engine warmed up the idle was rough to the point of stalling. In cold weather my 2000 sierra starts, reves up idles back down to rough idle and continues to do so for about a minute. I've been told that's how they were "released" to the public. dealer feeding BS??? - Hi guys Brand new 2015 suburban. 3 litre SLT truck. With that said, I have a 16 Tahoe that I purchased recently. I just replaced the plugs about 3 months back and it ran fine after, people have told me things like it is the o2 sensors to the cat is plugged up to my fuel filter is bad. The idle has been rough for a few months. On newer vehicles, a coil pack replaces the distributor. CarComplaints. The engine coolant temperature (ECT) is more than 68 C (154 F) The vehicle speed exceeds 0 MPH (0 km/h). 2008 GMC 1500 2wd posted by richard2717 Selling my work truck. To continue with your YouTube experience, please fill out the form below. The 2016 GMC Sierra 1500 has 1 problems reported for rough idle. Injen Sp Black Air Intake For 2012-2016 Bmw 228i 320i 328i 420i 428i 2. I like the exhaust the way it is and don't want to make it any less obnoxious once it is warmed up. The Throttle Response Controller is 100% reversible and will not leave residual codes on the factory PCM making it warranty friendly. Thanks fellas Sean. Cold starts are fine but after I've driven it awhile, shut it off then start it again it idles rough, kind of loping. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. Cold start problem, rough idle, no start and stalls Hi everyone i was wondering if i can get any advice on solving my starting issue with my 87 legend with a recent c27a swap. A second “rough idle” TSB PIP3146C explains how a valve train issue can cause loss of compression for a very short time. The driver frontal air bag may improperly inflate during second-stage deployment in the event of a high speed crash. 2015 Silverado code P050D I keep getting a P050D code cold start/rough idle. 3 of the 4 stalls occurred when vehicle was cold (no correlation with right hand turn). At 10:1 compression, this engine (all variants) cannot run efficiently on 87 octane. 0L is becoming more common and getting harder to diagnose. So I have an 87 Silverado half ton. After that the engine seems to either be starving for air or getting to much air. 12) If the Duramax engine is cold, it may take a few seconds to a few minutes for the high idle to engage. It will barley start when it's cold. I like the exhaust the way it is and don't want to make it any less obnoxious once it is warmed up. If an unregulated air enters the engine, then it may cause a rough engine idle at cold start, setting the Error Code P050D. Chevrolet Silverado 1500 Stalling or Low Engine Idle Speed Due to Dirty Throttle Body - 20 reports. with misfires or roughness on cold start up. To learn more, see reviews below or submit your. On newer vehicles, a coil pack replaces the distributor. So I have an 87 Silverado half ton. After a few times, though, it runs smoothly, for the most part. User Adjustable ParametersIdle RPMTire SizeSpeed LimitRev LimitWOT SparkLTP ThresholdElectronic Throttle SensitivityWOT Fuel Free Shipping On Orders Over $75. It Shakes really bad, has a noticable scratchy-ticking sound, an occasional sputter and glunky sound. 3 rough idle and dark cold start exhaust. Cold starts are fine but after I've driven it awhile, shut it off then start it again it idles rough, kind of loping. I'm just looking to get my high idle back which is hilarious because most people on here are trying to get rid of their ridiculously high cold start idle!. I am new to this page and I need some help. it will either start and run great then high idle like no other or start like crap and idle well when its warmed up. It could also be a warning of a serious problem that could damage your engine components. So here is my question, is there any relationship with the rough idle and poor heat?. 2016 Sierra 5 3 Rough Idle Complaints 2016 GMC Sierra 1500 4×4 All Terrain X Review – Macho and Comfortable in One The 2016 GMC Sierra 1500 4×4 All Terrain X trim couldn’t have any better timing, with gas prices now comfortably low enough to own a full-sized pickup truck, it makes for a very tempting buy …. It will barley start when it's cold. Runs great as mentioned. The harsh shift may […] October 9, 2016 —. The colder it is the worse the idle is. I was having issues with a rough idle and on a couple of drives the engine. There are many problems that can result in a Chevy Silverado's failure to start, making diagnosing the trouble even more frustrating. Engine Idle Is Too Low Or Stalls Dirty Throttle Body. 3 v8 gas has a very rough idle, and stalls at low manuver speeds like turning at low speed or backing up. Was having problems with rough idling and surging rpms. It has no power when you start driving but smooths out when the transmission shifts into third and if you don't turn the truck off there might not be any other problems. The long term fuel trims at idle were at +10 to +24 showing me that the PCM was adding fuel. It may also Run rough when warm, slight knock, no codes setting. The PCM regulates engine intake air at idle using an electronically controlled device called the IAC (idle air control). See 2017 Chevrolet Silverado 1500 technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area rough idle, extended crank, or crank. It runs great other than it idles rough when first started until it gets to normal operating temperature then it idles fine. rough idle, extended crank, or crank no start in some cases. 07 with the same issue. My 02 Trailblazer LTZ with the V6 has recently started idling rough. com : Car complaints, car problems and defect information. An exhaust leak or noisy exhaust, sometimes described as a rattle or rumble, most noticeable on a cold start may be found on some 2014-2017 Silverado 1500 and 2015-2017 Escalade, […] October 9, 2016 —. If it runs rough at start up when it's cold then that leaves out the O2 sensors. After the truck sits for 8+ hours (at work) it starts fine and idles around 1000 to 800 rpm. has 295k highway miles. I have to pump the gas sometimes to get it to start. Thanks fellas Sean. She is currently having the same stalling issues. A couple days later the light went off but the issues remain. Rpm drops below 300 rpm then goes back to 490 rpm. While there are a variety of reasons your Chevrolet Silverado 1500 has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. rough idle as if dropping a cylinder. 2008 GMC 1500 2wd posted by richard2717 Selling my work truck. If an unregulated air enters the engine, then it may cause a rough engine idle at cold start, setting the Error Code P050D. Any leaks, any where, will throw the idle and computer off. Nothing seems to fix it. Already took off TB from motor and cleaned it with a tooth brush and TB cleaner, replaced temp sensor, cleaned MAF sensor, there is no IAC valve (sensor) on this engine. To learn more, see reviews below or submit your own. 3 in my '07 Tahoeyeah, I know I can take it back to the dealer, but I try to go in there as well armed as I can with info, since usually it is just a waste of time trying to get them to actually find a problem, you know?. 5L V6 In late 2015, the take-rate on EcoBoost-powered Ford F-150s was higher than 60 percent. Order a Ford Idle Air Control Adjuster for your 1986-1993 Mustang with a 5. Some customers may also state that the MIL is not illuminated. Have had several sensors replaced (even tho they checked good) and just had a tune up done on it. ) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and. Put in gear and it begins to rough idle at 700 to 500 rpm until the throttle is depressed. If an unregulated air enters the engine, then it may cause a rough engine idle at cold start. 2009 Silverado 5. Runs smooth as silk now! Hope it works for y’all. 5ft bed 355-horsepower 5. I was thinking the richer mixture on cold start may be masking the rough idle when cold. Higher RPM at cold starts is normal, but it should not be "rough". After that time it would run perfect. I had experienced a slightly rough idle previously (nothing serious) and had been unable to track it down. Again, start the engine and compare how it is running at a stop to how it normally runs. com : Car complaints, car problems and defect information. Posts: Trying to start the truck with a dead battery will set this dtc also. The engine runs rough at idle while is cold but smooths out when the engine warms up. This is a quick discussion on cold start drivebility problems. There are many problems that can result in a Chevy Silverado's failure to start, making diagnosing the trouble even more frustrating. I was thinking the richer mixture on cold start may be masking the rough idle when cold. my truck does something similar. " When I got nowhere with the dealer, I went to GM and their tech people say the same thing; "the rough idle I experience is normal for that vehicle. I think the first TSB stands a better chance to at least be a possible cause. P0300 Diagnostic Trouble Code Discussion for December 2016 Multiple Misfire Detected * Note: This is a professional automotive technician's resource. 2016, 4:25am #2. 3L with 155K, and every morning when i start it, its has a rough idle (300-500 rpm) and act like its going to stall out, then it will idle way up (about 1500-2000 rpm) and then it idles just fine, has brand new battery, fuel pump, fuel filter, plugs, and wires. P0300 Diagnostic Trouble Code Discussion for February 2016 Multiple Misfire Detected * Note: This is a professional automotive technician's resource. In the morning or when the engine still cold it will make a loud tapping noise during idle. P0300 Diagnostic Trouble Code Discussion for December 2016 Multiple Misfire Detected * Note: This is a professional automotive technician's resource. Valve adjustment may need to be checked, as valves that are out of adjustment can cause misfiring at a cold start, which is, a fairly common issue in some older Honda engines. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc. 10852511), saying the truck "has the. 8L V8 Vortec engine started flashing a check engine light. There are lots of things that can cause your car to run rough when cold. Chevy Suburban/Tahoe Rough Idle and Stalling. Elavated idle is turned on. In order to understand this, it is important to know that a catalytic converter operates at a thousand degrees or more. The best part is, our Chevrolet Equinox Idle Air Control Valve Connector products start from as little as $21. 03 silverado 4. Learn what does P0300 Chevrolet Cylinder Misfire Detected Random Cylinders means, location and how to repair? When a misfire occurs, engine speed will fluctuate. Keys, Doors, and Windows To replace the battery: Remote Vehicle Start If equipped with the remote start feature, the climate control system will come on when the vehicle is started remotely, depending on the outside temperature. Tonight I had my heat on for the first time of the year and noticed that it gets cold when stopped. Upon a cold start, it allows more air into the engine and the idle is about 1000-1500 rpm. 2016, 4:25am #2. Once the engine warms up, the idle settles at constant idle speed. OK98EXP New Member. Looking at buying a Chevy Silverado or GMC Sierra? You may be in for a turbulent ride. The 2016 Chevrolet Colorado has 13 problems reported for engine stall. Is there some way to spoof the active exhaust into staying closed on cold start (and if so, does this screw up the world somehow?) Would using a block heater (like the option I didn't get) prevent the loud start and fast idle?. After the truck sits for 8+ hours (at work) it starts fine and idles around 1000 to 800 rpm. rough idle, extended crank, or crank no start in some cases. Don't get me wrong, it sounds mean (like my race cam in my c6 z06). Have had several sensors replaced (even tho they checked good) and just had a tune up done on it. One time, it did completely misfire and limped back to my shop. The procedure is different depending on the car make and model. 0l: Throttle Body Spacers & Adapters - Amazon. 3 liter Rough idling, Shutter issues. 2016 Chevy Silverado white smoke and the smell of oil. The first sign of the problem was the service engine light would blink intermittently when driving on the highway or revving the gas. The first start it may run rough until the fuel rail and injectors fill. On cold start. I probably should have just divided the file into two files (cold start idle & Warm after drive idle) but I just didn't have much time and it was fastest just to cut data during the drive out of the log. A week later I noticed my car sometimes rumbling on idle right after start again, so they replaced the fuel filter and the fuel pump. There are so many things that can cause a rough idle at cold start and possible not set codes. She said that it seemed to be worse at idle than when accelerating. With a heavy smell of rich Exhaust gas, then it smooths away. Suburban: Rough Idle At Cold Start 2 Answers. This may be related to the idle air control module/valve, which is a component that monitors the amount of of air intake at idle as it is mixed with the fuel prior to being injected into the motor. Rattle became a knocking. it runs fine when i first start it, but soon idles low/rough, but only in gear. 3L with 155K, and every morning when i start it, its has a rough idle (300-500 rpm) and act like its going to stall out, then it will idle way up (about 1500-2000 rpm) and then it idles just fine, has brand new battery, fuel pump, fuel filter, plugs, and wires. to diagnose and repair vehicles with a rough idle and/or vibration at idle in drive. Vehicle sputters on cold start on cold mornings. Higher cranking speed helps the engine start in at least 2 ways: 1- Compression pressure and combustion heat are higher with a faster cranking speed. Research the 2005 Chevrolet Silverado 1500 at cars. The idle does smooth out after 30-60 seconds. When you press the gas pedal there is no response. After trying several times and trying to idle up with the accelerator pedal it will just like that run the way it is supposed to. So far as the rough idle goes, (I cant say about the speedo) I'm going to hazard a guess you have a. Trouble Code. Hesitates at various moments when - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Alternately, your ride may feature a series of V-belts (also known as a fan belts), which perform the same all-purpose functions as a serpentine belt. Hi there - given your repairs already, I would suspect a. That statement hold for my 4th floor work office as well. Many problems stem from the intake manifold gaskets. It runs awful until up to operating temp and still lacks power then. Hopefully someone else has experienced this problem. Average failure mileage is 27,500 miles. One time, it did completely misfire and limped back to my shop. 2002 Chevrolet Z71 5. 3L V8 6-speed shiftable automatic 4WD w/low range Harmonic balancer "falling apart" at 120 miles. Rough idle at start up I have a 2004 buick rainier with 80 k miles. While there are a variety of reasons your Chevrolet Silverado 1500 has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. Mine had a bad idle at cold start and would miss. My friend has a 1991 Chevrolet Silverado pickup truck V8 c1500 5. Browse other questions tagged ford rough-idle or ask your own question. Any suggestions?. Cold starting was becoming more and more difficult and until the engine warmed up the idle was rough to the point of stalling. 0l: Throttle Body Spacers & Adapters - Amazon. Alternately, your ride may feature a series of V-belts (also known as a fan belts), which perform the same all-purpose functions as a serpentine belt. So the sage continues. New guy who just bought HP tuners, got a 5. Chevy Silverado 2500 HD / 3500 HD 6. I have driven all around the country in cold weather and never had an issue - but the other day, it had a really hard time starting in -3 temps in Maine. Follow these steps to complete an Idle Relearn: With vehicle at a complete stop, set the parking brake. CarComplaints. 1995 Pontiac Bonneville Won’t Idle I have a 1995 Pontiac Bonneville that has a 3. Often worn chains are discovered when they scratch holes in the timing cover and leak a great deal of oil while the engine continues to run well. I like the exhaust the way it is and don't want to make it any less obnoxious once it is warmed up. SYMPTOM SUMMARY The engine idles too high. This company is not yet accredited. The harsh shift may […] October 9, 2016 —. Average failure mileage is 100 miles. Home › Forum › GMC › 2015 Yukon Denali rough idle issue and general frustration This topic contains 2 replies, has 3 voices, and was last updated by GM-4-LIFE 4 years, 8 months ago. 5L V6 In late 2015, the take-rate on EcoBoost-powered Ford F-150s was higher than 60 percent. 3 in my '07 Tahoeyeah, I know I can take it back to the dealer, but I try to go in there as well armed as I can with info, since usually it is just a waste of time trying to get them to actually find a problem, you know?. Rough Country. Something of interest is that when the you put the vehicle in Drive and press on the brake, the idle gets worse. Two codes of P0440 in the past 3 weeks since the fuel pump was replaced. The 2017 GMC Sierra 1500 has 7 problems reported for engine runs rough. If you have close neighbors, this is going to cause friction if they sleep with the windows open and you get out early. I hope this helps. After that time it would run perfect. a mechanic a few days ago replaced the EGR gasket and pressure sensor and. Hi bigbiz187, Sorry that you are experiencing a hard start and rough idle after refueling your vehicle. with misfires or roughness on cold start up. Cold starts are very loud and I don't need my 2 way remote start to tell me the truck started ok. Rough idling, how do I fix my particular issue? 13 Answers I have a 2005 LS Silverado 5. So rough in fact that the box of the truck was vibrating. At 10:1 compression, this engine (all variants) cannot run efficiently on 87 octane. 08 Silverado 5. Cleaning out the carburetor to remove carbon deposits is probably a good place to start. have sold car to my son, who commutes 100 miles/ day now. Just recently say in the last 1 thousand miles its been idling rough once put in gear, occasionally when not in gear. The 2017 GMC Sierra 1500 has 7 problems reported for engine runs rough. It eventually set off the check engine light with cylinder 1 misfire and random cylinder misfire. I have noticed after most cold starts that the engine almost sounds like it could be missing for 15-20 secs and it idles rough until you drive it. I saw white smoke coming out tailpipe and the smell of burnt oil or oil. Took it home found it had the rough idle that seems to be pretty common, from reading the forums. 3 liter v8 with 18,000 miles seems to idle rough. 3 70,200 miles. I think I know what may be wrong but would like some advise. Says " rough idle cold start" it was middle of the afternoon and 72 degrees ? It's a 2016 silverado with 37000 miles. Reduces: rough idle, engine surge, hesitation, and spark plus fouling; Improves: cold start performance, and fuel stability for up to one year; Automobiles and trucks use every 3,000 miles or at your next oil change. This second TSB came up when I selcted your truck and engine size but it should be confirmed that it applies to your engine,I am not 100% sure. A tuner who has a wheel dyno and works on these daily says the intake gaskets are the cause of many issues. Mine was doing that off and on too. 4mm Iridium and 0. After a few times, though, it runs smoothly, for the most part. 3 liter rough idle when cold * Simple fix. 2008 GMC 1500 2wd posted by richard2717 Selling my work truck. I've heard many complaints from customers, in person and online, about a ticking-type noise coming from the engine on their Chevrolet Silverado. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not. You'll need a scan tool to monitor which cylinder is misfiring during a cold start. Pay attention to low idle or stalling. Chevrolet Silverado 1500 Stalling or Low Engine Idle Speed Due to Dirty Throttle Body - 20 reports. How the purge valve (solenoid) is tested. The Throttle Response Controller is 100% reversible and will not leave residual codes on the factory PCM making it warranty friendly. The 2016 Chevrolet Colorado has 13 problems reported for engine stall. Turns out it was the map. Cleaning out the carburetor to remove carbon deposits is probably a good place to start. They did the sensor rebuild kit repair. I got in, cranked it over with the key and it started oddly. See 2016 Chevrolet Silverado HD technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area. The truck was either idling or running hard in 4wd for the duration of the time while I cleared down trees and made my way through a foot of snow going up their driveway. air regulator now, I mean Craig did his after all. Stays at 500 rpm but every few seconds drops down a bit then goes normal. It seems rough to me too, and a little noisy but apparently that's how it is. My problem is when I start the truck in the morning everything seems fine for about two mins. Get Engine Troubleshooting tips from other DIY'ers and auto mechanics that answer car problems for free online. There are lots of things that can cause your car to run rough when cold. 3 liter Rough idling, Shutter issues. 2, Z22XE ,Automatic,50967miles, in today engine light on fault codes stored (P0170 fuel trim malfuction bank 1) (P0340 camshaft position sensor A bank 1 circuit malfunction ) (P1781 engine torque signal circuit )(P0706 trans range sensor CKT range 1 perf) i have erased all faults took out for road test let it sit for an hour start it again runs rough at idle some. Average failure mileage is 7,350 miles. I am new to this page and I need some help. 5L turbodiesel? The problem has occurred at idle in park with no one in the vehicle; while in cruise control on the highway; after refueling and pulling out of a gas station and several other occasions while moving. This has never happened while accelerating, Only while at idle. new direct injectors and something else. com : Car complaints, car problems and defect information. Suburban: Rough Idle At Cold Start 2 Answers. I studied and read up and have a basic knowledge and I feel like I got the car to a good point but I know it needs more tweaks.