The contact owns a 2021 RAM 3500. The contact stated that while driving at 40 mph, the vehicle stalled and could not be restarted. The vehicle was towed to a dealer, where it was diagnosed that the entire fuel system needed to be replaced due to the high-pressure fuel pump exploding after metal shavings were found throughout the entire system. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 77,000.
Fuel system
2021 Ram 3500 Fuel System problems
Owners have filed 5 complaints about the 2021 Ram 3500's fuel system with NHTSA - 8% of all its complaints, most recently on May 6, 2026. Fuel pumps, leaks, injectors, fuel smells, gauges and stalling caused by fuel delivery.
- Complaints
- 5
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Fuel System complaints
I took the vehicle to the dealer for recall Manufacturer Recall Number13A NHTSA Recall Number23V-060 The dealer told me that they can only order one per week. I will have to wait over a year for the part to come in. This is a fire hazard and I have been advised to not park the vehicle in the garage or near other vehicles. Waiting over a year for a fire hazard repair is not acceptable.
I've replaced turbo twice, computer once, now I've been told by multiple dealerships that I need to replace the def system and or fuel pump I hadn't even got a 100k on the truck yet. The last incident I was driving and it kept saying in so many miles it would only allow me to go 5 mph see dealership for service then the numbers kept changing from high to low I was able to make it over 200 miles to get the truck back to the dealership without any issues.
Brand new truck (226 miles) STOPPED RUNNING on Interstate 90 in Montana. Very dangerous situation, although was able to pull to side of interstate and was able to tow truck to Butte Montana and no one was injured. Nonetheless, had this occurred in rural area, snowy mountain passes, pulling livestock trailer etc (purpose for which truck is intended), could have easily been life threatening. Understand this may be the same fuel pump issue affecting many others. Should be recalled immediately. No warning, truck...
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just went from 75 mph to zero in very rapid fashion. Please help put a stop to this asap. Extremely dangerous in winter and rural situation, and pulling livestock or other trailers, goose neck and 5th wheel. Happy to provide more info or answer questions. Thank you.
My brand new 2021 ram 3500 limited longhorn, suddenly stopped running at around 70 miles. This happened on i-84 between caldwell, id and baker city, or on 19 jan 2021 around 9:00pm. Roadside failed twice at getting us towed to safety. The 1st towing company called to say he declined the service and was surprised that they booked him anyway. The 2nd one informed us they had to decline the service because roadside assistance would not pay a fair price. By then we, the truck, and our trailer waited on the interstate...
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for 4 hours in pitch dark and very cold weather. We were able to find and pay a towing company ourselves. The dealership investigated the next day and informed us the vehicle stopped because it was out of fuel. The float or the part that detects fuel level was stuck in between wires of the fuel pump. The dealership apparently did not put fuel on the car and we did not notice because the car was indicating a full tank. The car also did not diagnose the problem properly, indicating "def fault" before it died. I am concerned about the safety of ram vehicles and their services. A ram 3500's purpose is to tow heavy trailers and expected to be realiable in extreme road conditions. The brand new one we bought costs $80,000+ and is their high end trim. However the car company and/or their dealership seem to think that mistakes like this are acceptable/expected even though they have high potential to lead to accidents. They refused to take the car back because it would cause them to lose money and I am bound by the contract. According to the lemon law, the car needs to break down twice before I can be protected. The culture of accepting low standards, zero culpability, inadequate quality control systems, and incompetent roadside assistance are a dangerous combination that could lead to loss of lives and traffic inconveniences.
Ram 3500 fuel system complaints by year
3500 fuel system problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data