The high pressure fuel pump failed and sent metal particles throught the fuel system. All fuel components except for the injectors are available. The engine stalled while driving at speed forcing me to stop and call a tow truck on the side of the road. Mileage at failure was 81340. Preston hood Chevrolet diagnosed the HP4 failure and replaced the entire fuel system, noting metal contamination in all areas. The component has not been inspected. The truck had a slight grinding noise when shifting into 4th on throttle. Took it to a firestone and the techs noted its possibly just shifting hard, no issues found. The grinding noises ultimately was the HP4 failing. No warning lamps or other indications of a problem were present prior to the catastrophic failure.
Chevrolet Silverado 3500 fuel pump problems
37 of the 1,078 owner complaints about the Chevrolet Silverado 3500 describe fuel pump failure, most of them for the 2015 model year.
- owner complaints
- 37
- worst model year
- 2015
- typical mileage
- 68,390
By model year
- 20241
- 20231
- 20201
- 20182
- 20164
- 20159
- 20142
- 20132
- 20123
- 20111
- 20052
- 20012
- 19994
- 19981
- 19972
Often reported together
Stalling 11Check engine light 5Won't start 4Engine failure 3Loss of power 2Jerking 2Won't shift 1
Trouble codes mentioned
C3500 1
What owners say
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.
The fuel pump driver module. I filled my truck up with diesel and it drove home fine. Later that afternoon left the house and got half mile down the road and the truck just shut off with no warning lamps or message. When this happened, you could not steer the truck and the brakes barley worked, now after the truck cut off a message came to shift in neutral. I was lucky no one was on the road at that time. Now had this happened the day before when I was coming home pulling a 40ft fifth wheel, this could have been catastrophic. When this fuel pump module goes out you have no warning the truck cuts off and you have no steering or brakes. This module needs to be recalled, and something else done to have some kind of warning before everything shuts off. People get these trucks to pull things and sooner than later Chevrolet will be answering to a fatality due to this fuel module, this does not need to be ignored till this happens.
Catastrophic failure of the CP4 fuel pump
The contact owns a 2024 Chevrolet Silverado 3500. The contact stated that while driving at various speeds, the vehicle hesitated, and the transmission failed to properly shift. The vehicle was taken to the local dealer, who discovered metal shavings inside the fuel filter and diagnosed that the High-Pressure Fuel Pump was faulty and needed to be replaced. The high-pressure fuel pump was replaced, and the vehicle was repaired. Later, while hauling a trailer on the highway, the vehicle unexpectedly stalled. The vehicle was towed to the dealer, who diagnosed that the fuel pump control module had failed and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 19,000.
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.
The 2023 Chevy High Country Diesel vehicle for 89,000 has failed tremendously, without any warning whatsoever. I've had my vehicle serviced on a 6 to 8 weeks bases at the dealership. on March 28, 2025 I was driving in SD and the truck just failed all the suddenly. The information stated to shift to neutral and restart which I did. The truck never started and had to be towed. The first diagnosis was the high pressure fuel pump which contaminated the entire fuel systems with metal shavings. Thereby, the CP4 failed and damage all components of the fuel system costing 11,750.00 for the repair. In addition to this, during further inspecting the shop informed me the engine camshaft and lifter were also an issued and contributed to the dilemma. I then got General Motors involved informing them that now way possible this should have transpired with a new truck having only 126,000 miles. I stated this is nothing for a diesel engine and something was not adding up. At the time I wasn't aware of all the issue General Motors were having with the trucks and suvs. I told them that no way can I pay 31,000.00 for a repairs on a new practically new truck I purchased brand new. They need to honor these problematic vehicles.
On [XXX] while traveling down [XXX] in VA I experienced a catastrophic Bosch CP4 Fuel Pump Failure. Vehicle was towed to Marion Auto Group in Marion, VA and kept for 5 weeks to repair fuel system. We paid $6,500 once we were told the repairs were complete and picked the vehicle up. Within 50 miles of driving, the fuel system error lights/codes began again and the service engine light came on. We called Marion Auto Group, they told us it was warranted for 24 months for parts and labor. We could take it to any Chevy dealer and have it looked at. We made an appt with our local Chevy dealer, Joe Bowman Chevrolet in Harrisonburg, VA. They kept the vehicle for approximately 5-6 weeks. Told us daily about the faulty repairs that Marion Auto Group had made, corrected the faulty repairs, with pictures, videos and even a coffee cup full of bad bolts and weld pieces that they replaced. Marion Auto Group agreed to pay Joe Bowman Chevrolet $5,500 in reimbursement for the work they performed to correct Marion Auto Groups work. When I got in the truck to bring it home and started it, the service engine light came on. They pulled it back in the shop, ran a diagnostic and said we needed some type of sensor ($900) so we scheduled an appt to have that done. Then we took the truck to Tennessee, fuel system failure lights and codes immediately came on. When I stopped to eat, it wouldn't start back. Took the truck to Tarr Chevrolet in Jefferson City TN, they diagnosed it as needing a new fuel line (from prev faulty fuel system) changed it ($1,700) and we headed back home with all the fuel system warning lights flashing again. Took it back to Joe Bowman Chevrolet in Harrisonburg where it's been sitting for over 7 weeks while GM decides if they should cover the entire new fuel system that it needs again ($19,000) because it's never been properly repaired since the initial catastrophic failure. Almost 7 months and $14,,600 in previous repairs.......Please HELP US! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT
The contact owns a 2012 Chevrolet Silverado 3500. While the contact's sister was driving 65 MPH, the vehicle began to jerk with the check engine warning light illuminated violently. The contact stated that the vehicle stalled in the middle of the highway. The contact called California Highway Patrol who assisted with getting the vehicle off the road. The vehicle was eventually towed to the dealer where the vehicle was diagnosed with a defective fuel pump. The manufacturer was notified of the failure but offered no assistance. The vehicle remained in the possession of the dealer and was not repaired. The failure mileage was approximately 68,000.
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.
Related recalls
Fuel system, gasoline: delivery: fuel pump: control/drive module
- What is wrong
- General Motors, LLC (GM) is recalling certain 2025-2026 Chevrolet Silverado 3500, and GMC Sierra 3500 vehicles with gasoline engines and dual fuel tanks (RPOs L8T and N2N). The rear fuel pump may not transfer adequate fuel to the front tank, causing an engine stall.
- Risk
- An engine stall increases the risk of a crash.
- Remedy
- The vehicle's engine control module (ECM) will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed April 8, 2026. Owners may contact GMC customer service at 1‑800‑462‑8782 or Chevrolet customer service at 1‑800‑222‑1020. GM's number for this recall is N262544420. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on March 5, 2026.
Recall number 26V129000 · Recall details
Fuel system, diesel: storage: tank assembly
- What is wrong
- General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front tank, resulting in an engine stall.
- Risk
- An engine stall increases the risk of a crash.
- Remedy
- Dealers will inspect the fuel tank and fuel pump module, replacing them as necessary. Dealers will also add a vent hose to the rear tank assembly. Repairs will be performed free of charge. An interim owner notification letter informing owners of the safety risk was mailed on March 15, 2023. Owner notification letters were mailed June 21, 2023. Owners may contact Chevrolet customer service at 1‑800‑222‑1020 or GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N222368030.
Recall number 23V047000 · Recall details
Fuel system, gasoline: storage: tank assembly
- What is wrong
- General Motors, LLC (GM) is recalling certain 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 trucks equipped with gasoline engines and dual fuel tanks. The fuel-level sensor in the front tank may stick in a low-level position, allowing 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 module, inspect the front tank and, if necessary, replace the front tank, free of charge. The recall began July 30, 2019. GM's number for this recall is N182204190.
Recall number 19V088000 · Recall details
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 Chevrolet Silverado 3500 fuel pump
Which Chevrolet Silverado 3500 years have fuel pump failure problems?
The model years with the most reports are 2015 (9 complaints), 1999 (4 complaints) and 2016 (4 complaints).
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