2011 Chevrolet Silverado 2500: fuel pump failure

Filed Jan 6, 2025 · Fuel system · NV

Engine suddenly stopped running while driving and could not be restarted. It was towed to a local diesel repair shop. Diagnostics showed a catastrophic failure of the high pressure fuel pump which polluted the complete fuel system with metal.

Filed Jan 1, 2024 · Fuel system · AL

With all the known issues involving the failing CP4 fuel pumps out in the field, why hasn't there been a nationwide recall on this issue? We're being proactive in getting our LML repaired to save our engine. We want our costs reimbursed. This isn't a "small" matter. It's freakin' huge.

Filed Dec 29, 2021 · Electrical, Fuel system · TX

Fuel pump fuse socket has melted in addition to fuse being blown. Fuel pump had been replaced twice with OEM fuel pump. Entire fuse box must be replaced. Occasionally, a no start condition can be traced to fuse contacts losing conductivity which can be resolved by removing them reinstalling fuse. Has potential of causing electrical fire

Filed Feb 12, 2020 · Fuel system · 12,658 miles · WY

Tl* the contact owns a 2011 chevrolet silverado 2500. While driving at approximately 45 MPH, the vehicle stalled without warning. The fuel filter clogged message was displayed. The contact changed the fuel filter. The vehicle was towed to a denny menholt chevrolet buick gmc 1172 16th st, cody, wy 82414 (307) 527-7101 where it was diagnosed. The contact was informed that the fuel pump exploded and that metal shavings were found in the fuel system. The manufacturer was not contacted. The failure mileage was 123,658.

Filed Sep 10, 2019 · Fuel system · 123,000 miles · FL

Tl* the contact owns a 2011 chevrolet silverado 2500. While driving approximately 35 MPH, the vehicle stalled. The contact coasted the vehicle to the side of the road. There were no warning indicators illuminated. The vehicle was towed to the contact's residence and then towed to bomnin chevrolet (8455 s dixie hwy, miami, fl 33143). The dealer diagnosed that the cp4 fuel pump failed and needed replacement. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 123,000.

Filed Nov 12, 2018 · Engine · 54,000 miles · CA

I was traveling to work in the fast lane of the freeway when I heard a faint squealing noise and the truck suddenly started running rough. I began crossing all 4 lanes and by the time I made it to the the slow lane the truck completely died. I was able to safely coast off of the freeway due to my quick reaction and lack of traffic at the time, but the situation was very dangerous and could have been much more so with heavier traffic or a less aware driver. Later diagnosis at the chevrolet dealership told me that the cp4 fuel pump disintegrated inside. After speaking with the diesel technician at the dealer I learned that it is a very common problem and the repair comes with a $10,000 price tag. I was also very surprised that there has never been a recall for this problem and gm continued to use them until 2017...7 years! My truck is a 2011 with only 54k miles, and they just fixed a 2017 with only 7k miles! I have since done a lot of research finding hundreds of low mileage gm duramax diesel between 2011-2017 with the exact same failure. I was able to get the bottom of the failure itself and I found the following...the bosch cp4 fuel pumps that were used in these trucks (also found in late ford and vw diesels) are made in europe to different specifications. The pumps rely on lubricant found in diesel #1 to operate smoothly and last a long time. Here in the u.s. We only have diesel #2 which lacks that lubricant and causes the internal parts of the pump to disintegrate sending metal shavings throughout the entire fuel system. This is why the repair averages $10,000 across the country, the entire fuel system becomes contaminated and has to be replaced. I contacted gm and they don't believe this is a safety issue. A vehicle suddenly dieing with seconds notice on the freeway is certainly a safety issue in my eyes. Especially when it's a common failure that can be prevented.

Filed Jul 2, 2012 · Engine, Fuel system · 19,025 miles · GA

The truck had the check engine light come on when we took it to the dealership they replace the fuel pressure regulator. The light soon came back on due to a faulty fuel pump which sent the car into safe mode, which made the car do a nose dive from 55 to 15 in a matter of seconds on a major interstate in atlanta.