While driving the vehicle lost power, would not go over 15 mph. There was a loud rattling noise from the engine. Check engine light came on. loss of power and speed prevented me from keeping up with traffic. Had vehicle towed to Chevrolet Dealership was told high pressure fuel pump mounting bolts had broken and fuel pump was loose. Dealer replace fuel pump and one fuel pipe (part #12627128). I paid full price repair ($ 1,775.21) and contacted Chevrolet to see if they would offer any assistance I was under the power-train mileage but over on time. They offered and I accepted 50% of the repair cost but no towing. After some research I discovered there was a recall (18V358000) for an erlier model for a similar problem. The recall was for the fuel pump separating from the base which could damage the fuel line and create a fire hazard. In my case the entire pump came loose which leads to the same result as the pump separating from the mounting plate.

- Fairport, NY, USA

I purchased my 2019 Chevy Colorado Z71 new in Feb 2019 from a dealership. About two years ago I began having shifting issues from 1st to 2nd gear, it would shudder and seem almost stuck, this would only occur infrequently. Right after I hit 100,000 miles (about a year ago) I have had nothing but issues with the 8 speed transmission, my vehicle is unable to shift from 1st to 2nd without having the shudder occur, it feels like the whole truck is shaking and loses power at acceleration. I took it in for their recommended "service bulletin" which was something that I had to locate myself because GM has not once communicated about there being any kind of shudder issue and they performed a simple flush of the transmission, not the service bulletin recommendation of three flushes and a different fluid. My truck is now in the shop because I am unable to drive it due to this ongoing issue that GM fails to recognize and so far have spent $1,000 attempting to rectify this issue and being told that in order for them to actually perform the service bulletin, it will be another $225 to diagnose the problem, around $500-$700 to perform the service bulletin, and then if that "does not fix the problem", I will have to spend another $900 on a torque converter because that "could" be the issue, the dealership "doesn't know". Then the third fix would be to replace the transmission ($5500-$8500) This has been a known issue since manufacturing and GM is failing to provide adequate assistance to fix a known problem with their 8 speed transmissions. I no longer feel safe to operate my chevy colorado in fear that it could cause serious injury to myself and others due to GM not being able to provide a safe fix to their ongoing issue.

- Leander, TX, USA

This truck has roughly 41000 miles on it. As I was driving home from work on [XXX], I heard a faint noise and then my truck just lost power and died on the freeway. There were no engine warning lights on and did not want to restart and stay running. After a few times of starting and dying the message on the dash said keep driving engine is in regen. This is a diesel truck and the newer ones have a regeneration that is done with DEF. I was unable to get it off onto the exit, but did get it off the roadway. The vehicle was towed into the shop on February 3rd, 2024. The shop had to order parts and said that it was just a faulty part. I received the truck back on March 14th. I drove it home from the shop and to work for two days putting roughly 100 miles on the truck. On my way home on [XXX], the truck died again with no warning at all. Same symptoms, just no power and no warning. The truck was towed back to the shop where it still sits today. The problem is there is an issue with this thing dying without any warning at all. The dealer and Chevrolet techs have been unsuccessful in finding the problem. It has been almost 6 months in the shop with literally no idea of what is wrong. I feel this is a serious safety issue that could leave people or families stranded without any warning or idea of how to repair. I feel this should be investigated and brought to someone's attention. I have contacted Chevrolet, but unfortunately they have left everything up to the dealership. The dealer is Auburn Chevrolet in Auburn, WA. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Covington, WA, USA

The bolts that secure the High Pressure Fuel Pump to the engine head broke apart causing the vehicle to lose power and leak gasoline.

- Louisa, KY, USA

The High Pressure Fuel Pump detached from engine and snapped off flange and bolt in the head of engine. The part is available for inspection and was removed by dealership. Vehicle was being driven at highway speed at time of failure. Narrowly avoided an accident as truck lost power and went into limp mode. There was no prior warning leading up to failure.

- Grayslake, IL, USA

5 FUEL SYSTEM CONCERN TECH(S):131 Customer States, There is a fuel leak present on the top of the tank where the filler neck goes to the tank. Please inspect and advise NEED TO LOWER FUEL TANK AND INSPECT IF FUEL PUMP IS LEAKING OR ONLY ITS SEAL. 131 LOWERED FUEL TANK AND REPLACED FUEL PUMP SEAL, VERIFIED NO LEAKS ALL OK AT THIS TIME I was fueling up with diesel and it started leaking on the ground

- Gladstone , OR, USA

The gas tank/gauge will be on "full", then-while driving, the gas gauge will go to "E" and the dash will alert you as to no fuel. Upon taking this vehicle to the dealer the first time, the dealer could find no issues through the computer. The "second" occurrence-the vehicle was taken to a different dealer, and they stated the fuel level sensor needed to be replaced. The "third" occurrence-the gauge went to "E", while driving, the dealer claimed it was now a cord/wire that attached to the fuel level sensor running the length of the vehicle under the truck. Since it "appears" the resolution to this issue is questionable, and the dealer(s) have not fully corrected the issue, how can I be confident the vehicle actually has fuel? also, there is an issue with the blue tooth linking to "I-phones/ios systems (only), not android phone/systems, as call/text notifications may not always alert while you are in the vehicle. The first dealer stated they contacted GM, but so far-there is no final resolution from GM regarding the blue tooth issue with I-phones/ios systems. I do have all receipts for all actions taken regarding this vehicle.

- Akron, OH, USA

The contact owns a 2019 Chevrolet Colorado. The contact stated that the vehicle experienced a fuel leak at the fuel tank. The vehicle was taken to a local dealer (1205 price rd SE, albany, or 97322) to be diagnosed. The contact was informed that the fuel tank leak was due to road debris which punctured the fuel tank. The vehicle had remained in custody of the dealer due to the parts necessary for the repair being on back order. The manufacturer was made aware of the issue but offered no additional assistance. The vehicle was not repaired. The failure mileage was 24,000.

- Albany, OR, USA