Engine And Engine Cooling Problems of Chevrolet Colorado - part 1

This is the fifth vehicle with the 2. 5l engine that has experienced vacuum pump failure resulting in a broken exhaust camshaft. Without warning, drivers have experienced a complete loss of brake function as a result of the vacuum pump failure.

See all problems of the 2021 Chevrolet Colorado 🔎.

Component: the piston in cylinder #1 cracked and created conditions for the fuel injector to bore a hole through it. Safety: this led to sudden loss of engine power and violent shaking of the vehicle at highway speeds. Confirmation: multiple reports of the exact same incident can be confirmed and researched at Coloradofans. . Read more...

See all problems of the 2016 Chevrolet Colorado 🔎.

Upper coolant hose started leaking two weeks ago.

See all problems of the 2024 Chevrolet Colorado 🔎.

The key does not release when in park! I have to adjust the steering wheel and gear shift multiple times to get it to release. This has been going on for a while and the truck only has 27,000 miles. I've called multiple chevy dealers (including the one I bought it from) they all want a 250 diagnostic fee! this should be under warranty. This problem is dangerous. I have seen I am not the only one having this issue. This issue needs to be investigated and recalled!.

Immediately after braking in traffic or at a complete stop the there is hesitation with the accelerator. If I have to brake in traffic on the highway and then need to accelerate to enter another lane the vehicle will not accelerate for several seconds making it dangerous if the traffic in the other lane is traveling at a higher speed. At a stop sign when looking both ways to make sure the road is clear if I need to accelerate quickly the car will not move for several seconds no matter how far I push the accelerator. This almost led to a crash at a limited visibility intersection. I have not taken it to the dealer yet, but that is the next step.

The contact owns a 2019 Chevrolet Colorado. The contact stated that while the vehicle was parked, the contact saw oil on the ground underneath the vehicle. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a leaking valve cover gasket. The contact was informed that the valve cover gasket needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the independent where it was diagnosed with a failed cam shaft carrier gasket. The contact was informed that the cam shaft carrier gasket needed to be replaced. The vehicle was not repaired. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 112,000.

See all problems of the 2019 Chevrolet Colorado 🔎.

What component or system failed or malfunctioned, and is it available for inspection upon request? to my knowledge, which is limited on vehicle diagnosis, the engine valve body is having an issue finding a gear when starting from a stop. How was your safety or the safety of others put at risk? the vehicle engine will sputter and jolt forward and attempt to go to a higher or lower gear when approaching the stop . Has the problem been reproduced or confirmed by a dealer or independent service center?the problem is reproducible, but the dealership is stating I would need a check engine light to have it serviced or seen. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no visible alerts of fault when issue occurs or thereafter.

See all problems of the 2023 Chevrolet Colorado 🔎.

The contact owns a 2016 Chevrolet Colorado. The contact stated that while driving at an undisclosed speed and making a turn, the vehicle stalled but restarted. The contact continued driving, but the failure recurred. There were no warning lights illuminated. The contact stated that the failure should be covered under NHTSA campaign number: 21v213000 (steering). The contact pulled over to the side of the roadway. The vehicle was taken to the local dealer, where it was diagnosed that the steering gear torque sensor cover assembly needed to be replaced; part number: 23232310. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 122,998.

From auto stop when engine turns back on it jerks me forward.

The contact owns a 2017 Chevrolet Colorado. The contact stated that while driving at 60-65 mph in the mountains and towing a travel trailer, the check engine warning light illuminated, and the brake haul mode turned off. The engine warning light had illuminated over thirty times without towing a trailer. The contact stated that when the engine light was illuminated, the tow-haul feature would shut off. The local dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.

See all problems of the 2017 Chevrolet Colorado 🔎.

Fpcm code p069e. Engine stalls when slowing down. Local dealer says to check wires around water pump area if rubbing and unsecured.

A leak in the upper radiator coolant intake hose has been found. This leak is the result of a bad rubber o-ring in the connection between the radiator and the hose. This has resulted in coolant regularly leaking from the vehicle causing power train issues, health and safety concerns where toxic coolant is leaking and environmental concerns. A loud “whooshing” noise was heard from the engine bay prior to eventually a check engine light being illuminated when the coolant level became low enough.

I have been having intermittent issues with a warning on dash says service safety retrain system vehicle will shut off on its own doesn't want to restart vehicle was taken to dealership for a TSB as well as the shutoff issue they had the truck 28 days said they diagnosed the truck could not duplicate my concerns I also explained the issue with display going out flickering brake lights etc, intermittent issue with btakes being hard then extremely soft, I even showed video that they can clearly hear me talking on they did not care. When I picked the truck up from dealership the mileage in was same as mileage out as noted on the paperwork and matches pictures I took they never drove the truck. On Wednesday June 4, 2025 while driving home I ended up running a stop sign and barely missing a car because truck shut off causing my brakes to not respond I was able to get it to stop just in time it was witnessed by a local law enforcement agency I showed the officer my truck would not start and pedal was unresponsive was told it had to be towed had a friend tow to my house. On Saturday June 14, 2025 while on my way to northern duchess hospital the warning came on the display and vehicle shut off I was able to get it off the road could not start it had to call for someone to drive me to the hospital upon release at 5am I had to call my brother to pick me up we got truck to start after 20 mins while driving it he informed me I had no brake lights turn signals or headlight the display was black no speedometer nothing had to call friend to tow again once at my house he started checking fuses found 4 melted fuses one was ecm the others were body control module and something else this truck has 7300 miles on it the problems are getting worse last time at dealership service manager stated he wasn't wasting more than 20 minutes on diagnosing anything. Other issues are windows going down on there own climate controls coming on by itself and air coming in by top of windshield.

The contact owns a 2016 Chevrolet Colorado. The contact stated that while driving at various undisclosed speeds, the stabili-trak activated independently, and the steering wheel became difficult to maneuver. In addition, the message “service power steering” was displayed. The contact stated that on a separate occasion, while reversing out of the driveway, the steering wheel became difficult to maneuver. The contact used force to steer the vehicle. The stabili-trak feature was activated. The vehicle was taken to the dealer, and the dealer replaced the rack and pinion assembly. The vehicle was retrieved, and the contact was informed that a leak was found. The contact stated that on a separate occasion, while stopped at a traffic light, the vehicle vibrated abnormally. The vehicle was taken back to the dealer, where it was diagnosed and determined that the oil pan was leaking. The dealer performed a tune-up and a fuel injection service. The timing cover gasket was replaced, the engine front cover was resealed, and the oil pan assembly was resealed. The contact arrived to pick up the vehicle, and there was a puddle of fluid on the ground underneath the vehicle. The dealer inspected the vehicle and diagnosed that the water pump had failed. The vehicle remained at the dealer pending the repair. The manufacturer was notified of the failure but offered no assistance. The approximate failure mileage was 100,000.

The component that failed is the camshaft position actuator. My check engine light came on. Had my vvt solenoids replaced and the mechanic told me the actuator needs replacing. Gm has issued a special bulletin to fix this part for the same year make and model as my truck but my VIN doesn’t meet the criteria. I have only owned this vehicle for 8 months.

See all problems of the 2020 Chevrolet Colorado 🔎.

The vehicle shakes aggressively when you speed up. We took it in and it’s a transmission issue. There have been thousands of similar complaints from other owners but chevy refuses to acknowledge it and issue a recall.

Pass lock. Sometimes vehicle doesn't start.

See all problems of the 2007 Chevrolet Colorado 🔎.

My 2019 Chevrolet Colorado, equipped with the 3. 6l lgz engine, recently triggered a p0024 diagnostic trouble code. This code indicates a failure of the bank 2 exhaust camshaft position actuator solenoid, a critical part of the variable valve timing (vvt) system. After researching, I discovered that general motors has issued special coverage n232430470 for this exact issue on the 2020 Chevrolet Colorado, which uses the same lgz engine and solenoid system. Despite the identical failure and engine design, my vehicle is not currently included in the coverage. I believe this reflects a systemic defect that affects multiple model years — not just 2020 — and that gm is choosing to limit coverage unfairly. This failure can result in check engine warnings, drivability issues, reduced fuel economy, and possibly emissions system non-compliance. I am requesting NHTSA to investigate whether this vvt solenoid issue warrants a broader recall or special coverage extension across model years with the lgz engine (including 2019).

On [xxx] after only 400 miles on the odometer, I experienced complete transmission failure while on a highway and was nearly hit by the vehicle behind me, luckily that did not happen. On April 29th, a new replacement transmission was installed by the chevy dealer, and now on [xxx] I had experienced a severe burning smell from under the hood of the vehicle accompanied with a grinding sound, which lead to me to take it back to the dealer. On 05/15/25, the customer care manager informed me that the new transmission from the factory has metal debris inside the pan, and the vehicle would again require a complete "tear down". This is very unsafe for major powertrain components from the gm factory to keep failing, another failed transmission on a brand new truck like this is very unsafe especially because I drive on major highways to commute for work and transport my young children. This is unsafe for the public and my family, gm needs to be held accountable, they also refuse to refund me my money back on this vehicle, and are disregarding lemon laws in nys. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

-what component or system failed or malfunctioned, and is it available for inspection upon request? 2016 Chevrolet Colorado VIN: [xxx] engine: 2. 5l i4 (camshaft-driven brake system assist vacuum pump failure). Gm technical service bulletin 21-na-268 (Nov 2021) confirms that if vacuum pump drive lugs are broken, replacement of both the vacuum pump and the exhaust camshaft is required which was the case. Parts kept by repair facility that performed service. Autonation Chevrolet south clearwater FL 33764. -how was your safety or the safety of others put at risk? may, 2025 the vehicle experienced a sudden loss of braking (hard/stiff brake pedal). This is a safety-critical failure. -has the problem been reproduced or confirmed by a dealer or independent service center?yes by shop stated above. Diagnosis showed a seized engine brake system vacuum pump (driven by the exhaust camshaft) that had sheared drive lugs and produced metal debris which damaged the exhaust camshaft and associated components. The repair required replacement of the vacuum pump and the exhaust camshaft; my total repair cost was over $4,000. The camshaft was not readily available and I required a rental car for over 30 days while waiting for parts. -has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? system and parts inspected by shop above. Gm special coverage n182202780 (Apr 2019) addresses vacuum-pump related decreased brake assist for certain 2014–2017 gm trucks/suvs, but Colorado is not listed in that bulletin’s model list. -were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? check engine came on at time of brake loss (brake vacuum pump failure). Immediate system failure. I request NHTSA send me a copy of any investigation number or record created for this complaint, and I request guidance on whether I may be eligible for reimbursement under any gm program. Information redacted pursuant to the freedom of informatio.

Unknown. When my truck reaches a certain speed it is jumping or missing, it feels like a brake is sticking but I’m told it is a problem with my transmission, torque converter, going bad. It is getting worse. It cuts the power down on the vehicle. If I can go faster than 60 it doesn’t do it.

The problem started two months ago, with a loss of engine power and a stability track warning on the dashboard. This happened occasionally while driving, often going away on its own by turning off the vehicle. Two weeks ago, I took it to Chevrolet for an inspection. They did a general inspection and said it was a factory defect. Now, the vehicle has the problem constantly, and there are times when it's undriveable. That's a risk for me.

See all problems of the 2018 Chevrolet Colorado 🔎.

No warning lights or messages or anything. Blown head gasket and a large amount of coolant in the oil. I have an appointment to take it to a dealership the end of this week.

Upper radiator hose rubber grommet failing at 22k. Had a severe coolant leak coming from top radiator hose blowing back onto hot motor which could have turned into a fire quickly. I was lucky! a lot of GMC canyons and Colorado's are all reporting the same problem around 22k miles. It is currently at grossman chevy old saybrook, CT for repair.

Complete engine failure due to defective crankshaft malfunction, truck taken to certified repair shop and then dealer, deal not responding for 24 days. Engine failed traveling on the highway was fortunately able to pull over, stranded. Engine light came on and the engine failed completely 5-10 min after on a 2 hour return trip home. Certified repair shop informed me this is the exact same reason of the recall just that my vehicle wasn’t currently under the recall. Vehicle component has been recalled on other Chevrolet vehicles manufactured during the same time just not this one yet.

There was a catastrophic engine failure of a 2021 Colorado 3. 6l v6 engine. The engine has been replaced by gm and the failed engine is in the dealers' possession. While driving on a congested street, the engine misfired and immediately stopped. The vehicle rolled to a stop in the middle of 3 lanes. Occupants had to flag down traffic while pushing vehicle to the side. There was no warning lamps, messages or other symptoms, such as knocking, prior to the failure; and the oil service was maintained per manufacturer. Two separate dealers found "piston to valve contact, top of piston severely damaged, and metalic debris in intake plenum. " gm service bulletin 19-na-256 has identified "seized engine" caused by defective "crankshaft main or rod bearing failure" that can put the oil filter "in by-pass and distribute unfiltered oil with bearing debris throughout the engine. " in addition to the rod bearings, designated inspection points are the cam caps and camshaft journals on the heads and the timing change idler sprocket for stiffness when turning. Since the vehicle was 15,000 miles over the 60k warranty, they would not perform the designated diagnostic steps in service bulletin. Owner waiting on independent oil analysis. Service department provided pictures of metallic debris and valve damage, as well as the damaged spark plug. After opening case # 9-14977425869 with gm customer service and asking why warranty has not been extended or a recall issued for the known manufacturer defect in the TSB, the response was "it likely has not occurred enough times to warrant a recall". With a dealer discount, total towing, diagnostic and repair costs exceed $11,000. Results of blackstone labs oil analysis will be provided when completed, however, the oil was just changed 462 miles prior to the failure, so a sample of the previous oil that would have contributed the most to the failure was not available (6,948 mi on previous oil).

The contact owns a 2018 Chevrolet Colorado. The contact stated that while his daughter was driving at an undisclosed speed, the vehicle lost power and the driver observed a high pitch sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was steered to the side of the road and turned off. The vehicle was not able to restart. The vehicle was towed to a dealer where it was diagnosed and determined that the high-pressure fuel pump had fractured and there was a fractured bolt inside the cylinder head that needed to be replaced. Additionally, diagnostic trouble codes: p0089, p228c, and p2c1f were retrieved using a dtc machine. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 90,369.

The contact owns a 2019 Chevrolet Colorado. The contact's husband stated while driving 20 mph, while attempting to turn into a parking lot and another vehicle was attempting to exit the same parking lot, the brake pedal was depressed; however, the vehicle failed to respond. There were no warning lights illuminated. The contact's husband depressed the brake pedal, the brake pedal seized, and the contact had to veer and downshift to first gear to avoid crashing into the other vehicle. The vehicle was taken to an independent mechanic who diagnosed the vehicle with vacuum pump failure and a fractured part from the vacuum camshaft. The vehicle was not fully repaired. The local dealer was contacted; however, the vehicle was not repaired by the dealer because the vehicle was not under recall and parts were on back order, as per the dealer. The manufacturer was made aware of the failure and referred to the NHTSA hotline to report the failure. The failure mileage was approximately 130,000.

Brand new truck… 2024 chevy Colorado lt 4x4. . Classic Chevrolet oklahoma city ok extremely rough idol, on cold engine start up, you can hear the rough noise it coming out of the exhaust and feel it in the cab of the truck. After warm up,, at intersections on red lights ,,you can hear and feel the idol miss at times a little bit. The dealership has had my truck for 8 days now. No positive results to date. They say gm is making them go through a step by step process. The service manager tells me there is a code in one of the cylinders. . But the injectors test perfect. Looking on google I see many owners of the same truck with the same issue !!!.

P2738 pressure control solenoid valve 6 control circuit low voltage. Whenever you drive, the transmission will go into limp mode every now and then. It will say low oil pressure and throw another code of p0700 mil request from tcm. This is a common issue that I have researched and would like to know a way forward. I've only had the vehicle for 6 months. Within city limits as long as you don't push the accelerator too much (50mph within 2 minutes) it runs ok until the vehicle comes to a stop. Also, when you get on and off of the freeway, same issues make it go into limp mode in which you will have to shut the truck off and start up after a few minutes to reset.

I was driving down the highway going about 75mph in the left lane. The engine quickly started going down through the gears as the engine was shutting down. I was able to get it to the right side in very heavy traffic. I had to be towed. It took a 5 day repair and replacement of the fuel pump power control module. Warranty.

The contact owns a 2023 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the heater did not function as intended. The vehicle was driven to the residence. The contact checked the fluids and noticed that the oil dipstick was completely dry. In addition, the contact investigated and noticed that the oil had leaked all over the surface of the oil pan. The contact stated that the oil change warning light later illuminated. In addition, the contact stated that the failure had occurred after leaving the dealer and an unknown recall repair was performed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The contact referenced a customer satisfaction program; however, the vehicle was not included. The contact was advised to contact the NHTSA hotline to report the failure. The failure mileage was approximately 49,900.

Drive ability issues, feels like going over cattle guard,shudders when accelerating around 40-60 mph. The vehicle shudder's abnormally. There are no warning lights illuminated. Took to local Chevrolet dealership where a service bulletin, TSB: 21-na-047 was discovered to address the issue. The dealer recommended a transmission fluid flush. Mileage on this vehicle was 67,631.

The contact's husband owned a 2019 Chevrolet Colorado. The contact stated that while her husband was driving and she was a passenger, their vehicle shuddered and then lost power at approximately 55 mph. The vehicle was guided to the side of the road, where the contact and her husband noticed smoke emerging near the gear shift. For safety reasons, they both exited the vehicle and moved away from it. The contact then observed flames appearing between the driver's side of the cab and the bed of the vehicle, which quickly burst into flames. Another motorist attempted to extinguish the fire with an extinguisher, but it ran out before the fire could be contained, and the vehicle became fully engulfed in flames. Although the police were called, a formal report was not filed. The fire department arrived and extinguished the fire. The manufacturer was not notified of the failure. The failure mileage was approximately 41,000.

Engine light turned on. Fan keeps running for 10-15 minutes after truck is turned off. Went to two different mechanics and it is a thermostat problem. Temperature sensor and thermostat both have gone bad in under 5 years. They have told me it is not a good design and now parts are in back order. This needs a recall.