Engine And Engine Cooling Problems of Chevrolet Colorado - part 1

When I try to accelerate some times my truck doesn’t go. It’s like it’s not even in drive. The check engine light is on and the dealership that I bought it from told me just to drive it because they don’t have a loaner vehicle at this time. That it won’t hurt the vehicle to drive but it’s unsafe to drive. I step on the gas and it doesn’t go. I could be hit if I’m trying to move when in traffic. Also my truck only had 5200 miles on it when this started and I’ve only had it since 16 July 2025.

See all problems of the 2025 Chevrolet Colorado 🔎.

Vacuum pump busted as shown in photos. Once that busted it sent metal shrapnel into the engine which broke a piece of the cam shaft into bits. There were metal fragments that had to be meticulously cleaned out of my engine block. The loss of vacuum seal caused me to lose brakes while driving in stop and go traffic on the highway.

See all problems of the 2016 Chevrolet Colorado 🔎.

The contact owns a 2015 Chevrolet Colorado. The contact stated that while driving 50 mph and depressing the accelerator pedal, the vehicle failed to respond as intended. No warning light was illuminated. The contact stated that several seconds later, the vehicle started to work as intended. A dealer was contacted. The vehicle was taken to the dealer, where it was diagnosed, and determined that the oil pressure control valve needed to be replaced. The vehicle was not repaired. The contact stated that the failure had occurred five times. The manufacturer was not notified of the failure. The approximate failure mileage was 150,000.

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Visibly observed antifreeze / coolant leaking from top radiator hose where it connects to the radiator. Dealer replaced upper radiator o-ring but it's still leaking. At 17000 miles a service brake warning message showed up on information screen. Front brake rotors are warped. Dealer states normal wear on front brakes. Also the dealership stated the front left inner brake pad was down to 2mm of pad left. Wanted over $420 to turn rotors and replace pads. I inquired why the left front pads were worn so much than the right side. They stated this was normal!.

See all problems of the 2024 Chevrolet Colorado 🔎.

Vehicle: 2023 Chevrolet Colorado crew cab 4wd, VIN: [xxx] , mileage: 52,877. Recurrent failure in the cooling system and engine/transmission, affecting safety and use. Check engine light comes on and off intermittently, code p30c5 (coolant flow low). The coolant pump was replaced under warranty on March 20, 2025, at leson Chevrolet (harvey, la) with 26,621 miles (attached invoice), but the same issue persists 9 months later with "engine and transmission system" alert in mychevrolet app. This is the 5th failed repair for the same defect since purchase (August 2023). Previous repairs include transmission wiring/sensor (January 2024) and traction control/abs (December 2023). The vehicle is unsafe for daily 100-mile commute. Request investigation for potential recall. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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In December 2025 I was driving my 2022 chevy Colorado with 2. 5 liter all of a sudden with no prior warning or lights I have an extremely hard brake pedal could barely stop I wasnt far from home when I pulled into drive I left it running to check brake fluid saw some smoke . I pop hood and saw brake fluid full but smoke coming from the back of motor I couldn't tell where so I walked around to look underneath and saw oil all over. I shut engine off and had towed to chevy dealership diagnosis vacuum pump failure with engine damage.

See all problems of the 2022 Chevrolet Colorado 🔎.

The upper radiator hose on some huge percentage of these trucks fail (mine has failed at just over 20k miles). You can check the Colorado chevy forum, youtube, etc. , et al, and find plenty of instances where this has failed. As this is the cooling system, it can cause the engine to overheat and potentially ruin the engine. The flaw seems to be an engineering issue with the rubber seal they use (instead of a high quality o-ring) to seal the upper hose to the radiator. Additionally, since this can cause engine failure it should be addressed immediately. Instead, my local chevy dealer, since its not a recall item, said they could schedule a time next week for me to leave the truck and then they would get to it in 7-10 days. This is extremely unfair to the consumer who depends on these vehicles. This should absolutely be a recall item. You can find 1000's of examples online and if you can pull gm repair data, I'm sure you'll find 1000's more.

The engine coolant temperature gauge is stuck at approximately 160•f. Cooling fans are running at high speed constantly. The thermostat is stuck in the open position. The vehicle is less than 100,000 miles. There is a “special coverage bulletin n242484760” that has indicated the issue is occurring regularly with my type of vehicle but my specific VIN is excluded due to misplaced parameters. The part is readily available at the dealership in which we are getting the part fixed because so many vehicles of my make and model are having this issue. The cost of the repair will be $1,200 and will be out of pocket because my VIN is excluded but clearly affected by the same faulty system for the coolant. This is a mistake as my vehicle is have the exact same issue as all of the others “covered” in the special coverage. We are seeking an appeal and want to file a complaint that my vehicle is excluded and will have to pay $1,200 where other customers will not be required to do so.

See all problems of the 2021 Chevrolet Colorado 🔎.

Ecm engine control module tcm transmission range sensor tcm transmission control module while driving in a 45 mph speed zone in heavy traffic, the vehicle suddenly lost power and abruptly slowed down causing a number of other vehicles to have to break and swerve . Problem confirmed through onstar diagnosis as of this date, the gm dealer has not confirmed the problem. No other inspections have been confirmed. There were no warnings prior to the event.

2017 Chevrolet Colorado pickup with 58,000 miles. Check engine light came on. Scanner reading by a repair shop indicated a evap issue. I declined the $1200 repair estimate. I paid for diagnosis of problem $200. I repaired the system by "cleaning 2 filters at the beginning of the fuel tank ventilation system. The "primary filter and hose are located in a especially dusty area on the pickup truck and is prong to plugging if regularly driven on rural gravel roads. Nothing in the owner's manual indicates the service is required of this filter. Filter should be relocated to engine bay. Check engine light was reset and has not come back on. Note: this is part of the pollution equipment that stopped working properly before 10yr. Or 100,00 miles.

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Experience hesitation at a stop and shuddering at certain speed.

See all problems of the 2019 Chevrolet Colorado 🔎.

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.

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving at an undisclosed speed, the vehicle shuddered and failed to decelerate as intended while the brake pedal was depressed. An unknown message was displayed. In addition, the contact stated the vehicle failed to respond properly while the accelerator pedal was depressed. Upon inspection, the contact noticed an abnormal engine oil leak. The vehicle was towed to the residence. The vehicle was later towed to a local dealer, where it was diagnosed with an exploded brake booster and metal shavings inside the engine. The vehicle remained at the local dealer unrepaired due to the cost. The local dealer could not guarantee that the repairs would correct the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

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...

Upper coolant hose started leaking two weeks ago.

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.

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.

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.

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.