I own a 2015 Chevrolet Silverado 3500HD Duramax diesel. At approximately 130,000 miles, the high-pressure CP4 fuel pump failed internally, sending metal shavings throughout the fuel system and contaminating major components. The truck suddenly lost power on the freeway and became inoperable without warning. I was barely able to get out of traffic before it had to be towed to a Chevrolet dealership. This created a serious safety hazard, especially considering the risk if it had happened while towing my fifth wheel with my family. A failure like this should not happen at this mileage on a heavy-duty diesel truck. I also cannot afford the extremely high cost of repairing the entire fuel system. From my research, many other owners have experienced the same CP4 fuel pump failure, which often destroys the entire fuel system and leads to very expensive repairs. I believe this is a widespread defect, not normal wear and tear. I ask the federal safety agency to review these failures and take action to protect vehicle owners from similar dangerous and costly failures. This truck currently sits at the dealership as I cannot afford the repairs and GM will not fix what they know is faulty parts.
2015 Chevrolet Silverado 3500: fuel pump failure
9 of the 52 complaints about the 2015 Chevrolet Silverado 3500 describe fuel pump failure.
- owner complaints
- 9
- of this car's complaints
- 17%
- recalls
- 1
Fuel pump failure by model year
- 20241
- 20231
- 20201
- 20182
- 20164
- 20159
- 20142
- 20132
- 20123
- 20111
- 20052
- 20012
- 19994
- 19981
- 19972
What owners say
Catastrophic failure of the CP4 fuel pump
The contact owns a 2015 Chevrolet Silverado 3500. The contact stated that while driving 65 MPH, the message "Fuel Filter Needed to be Replaced" followed by the "Engine Power Reduced" were displayed on the instrument panel. The contact then stated that fuel started leaking from the vehicle and the vehicle stalled. The contact was left stranded in the middle of the road; a tow truck was called, and the vehicle was towed to an independent diesel mechanic. The mechanic performed a diagnostic test, and the contact was informed that the fuel pump had disintegrated which caused debris from the fuel pump to leak into the fuel system. The contact was provided an estimate to replace the fuel pump, fuel pump filter, fuel pump housing, and the fuel injectors. The manufacturer was notified of the failure and referred the contact to the NTHSA Hotline to file a complaint. The vehicle had yet to be repaired. The failure mileage was approximately 270,000.
Bosch CP4 fuel pump failed 400 miles from home leaving us stranded. We were towed in and spent thousands of dollars and 5 weeks to have the truck repaired. Only warning was that the truck was losing power and barely got off the road.
CP4 fuel pump failed while driving 250 miles from home. It was towed in and diagnosed, resulting in over $12,000.00 Dollars to replace fuel system due to metal pumped into fuel system. The mechanic sent the pump back as a core charge. We were stranded and freezing with our dog and towed in after several hours. The only warning was the vehicle was reducing power and I was able to get off the highway.
The contact owns a 2015 Chevrolet Silverado 3500. The contact stated while driving approximately 35 MPH, the check engine warning light illuminated. The contact had taken the vehicle to an independent mechanic where it was diagnosed and determined that the High-Pressure Fuel Pump (HPFP) needed to be replaced. The vehicle had not been repaired. The contact was advised that the HPFP were on national back order. The manufacturer had been informed of the failure. The contact researched online and related the failure to the federal safety agency Campaign Number: 21E101000 (Fuel System, Diesel). The failure mileage was approximately 150,000.
Tl* the contact owns a 2015 chevrolet silverado 3500. The contact stated while parked, the high-pressure fuel pump failed without warning. The contact stated he heard an abnormal noise and turned off and restarted the vehicle however, the vehicle shutoff without warning. The contact had the vehicle towed to woodland chevrolet (530 quality cir, woodland, ca 95776) where the vehicle was diagnosed with a high-pressure fuel pump failure. The vehicle remained at the dealer unrepaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was 180,000.
Cp4 fuel pump failure and engine failure- started truck that morning, 5 min later it shut off and hasn't started again. Hub exploded making 4wheel drive impossible when driving down hey. Ac blender stopped working AC vents blow hot air on right side of dash while in motion.
Bought this vehicle new from dealer in sept 2015 with the dealer installed flatbed already on it, on their dealership lot. Fuel mileage was poor from the first, "engine light on" from the first; transmission dragging from the first day we bought it. Service advisors and the salesman said drive it and it will clear out. It got worse. The dealership finally sent it to the company who installed the flatbed for them, and they said there was an electrical short in the fuel pump which they replaced. The automatic transmission did not shift smoothly when we got it back, and the dealership said "it performs as designed". But, this is an automatic 6 speed chevrolet transmission in a 2015 chevrolet 3500 silverado with a 6.0 gasoline engine. The transmission drags from 5th gear and then drags in 6th gear. I have to let off the gas pedal for the transmission to shift. If I let it drag out, it uses fuel and sounds like I am stuck in gear. We have taken it to 3 different chevrolet dealerships, and they say something is wrong but we can't take it apart to fix it. The service manager said for me to drive it until the transmission "blows up because it is under warranty". I took it to a reliable transmission shop, but they won't touch it because it is under warranty, but they said that there is something wrong that it does not shift smoothly into all 6 gears. It only has 3600 miles. We have to drive it once a week to keep the battery charged. I don't pull or haul anything with it. This is happening both in city driving and highway driving.
Service bulletins that may apply
Related recalls
Fuel system, gasoline: storage: auxillary tank
- What is wrong
- General Motors LLC (GM) is recalling certain 2011-2015 Chevrolet Silverado 3500 and GMC Sierra 3500 trucks equipped with dual fuel tanks. The low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.
- Risk
- If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.
- Remedy
- GM has notified owners, and dealers will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge. The recall began December 11, 2017. Owners may contact GM customer service for Chevrolet 1‑800‑222‑1020 or for GMC customer service at 1‑800‑462‑8782. GM's number for this recall is 17399.
Recall number 17V664000 · Recall details
Questions about the 2015 Chevrolet Silverado 3500 fuel pump
Is fuel pump failure a common problem on the 2015 Chevrolet Silverado 3500?
9 of 52 owner complaints about the 2015 Chevrolet Silverado 3500 (17%) mention fuel pump failure. The model year with the most reports is 2015.
Is there a recall or service bulletin for this on the 2015 Chevrolet Silverado 3500?
There is 1 recall and 2 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2015 Chevrolet Silverado 3500
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