Ram 2500 fuel pump problems

Filed Jan 28, 2026 · Engine, Fuel system · AK

Def pump failed twice with this vehicle and with that it does not allow the vehicle to run any faster than 5 mph after the countdown ends. Unknown how the exhaust being plugged and service was done to clean the exhaust ended up having the fuel pump and turbo charger needing replaced. Not sure if they went hand in hand and one causing the other. So far the vehicle only has almost 78,000 miles on it. Change oil and fuel filters at the vehicles scheduled computer system reports on the vehicle. I was having issues from service center having trouble resetting the exhaust system, which they said the system was not sealing properly. Took them a couple of days to get part from dealership to get it to seal and reprocessed the test which they said passed exhaust reset. That would explain the poor fuel rating of only getting 9 miles per gallon. If there was a complete fuel pump failure, not sure if that would compare to this being a safety issue. Not sure how engine would react, due to it completely failing or if the turbo would cause the vehicle to be unsafe. The vehicle is currently at dealership and only 1 out of the 3 are even available to fix this problem. Def pump is available, but unknown when the others will arrive. Service shop said it could be 3 weeks or 8 months for parts to come in. Due to being a back ordered item. Spent $70k for this vehicle, just to have it spend over 2 months in the shop. I do my own oil and fuel filter changes, due to it being faster and cheaper than any dealer or shop.

Filed Jan 21, 2026 · Engine, Fuel system · 110,000 miles · IL

The contact owns a 2019 Ram 2500. The contact stated that while driving at 50 MPH, there was blue and white smoke coming from the engine compartment. The vehicle was taken back to the residence. The contact saw a cloud of smoke coming from the engine compartment. The contact waited to see where the smoke was coming from and attempted to start however, the vehicle failed to start. The vehicle was then towed to an independent mechanic, where it was diagnosed, and it was determined that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and filed a complaint. The failure mileage was 110,000.

Filed Dec 6, 2025 · Fuel system · IL

My 2022 Ram 2500 6.4L HEMI has a long crank/hard-start issue every morning. It takes 5–6 attempts to start when the vehicle sits overnight. After starting once, it runs normally the rest of the day. I also had issues where the truck struggled to start after refueling. I replaced the gas cap and EVAP purge valve, which improved the refueling issue, but the long-crank cold start continues. I suspect a fuel pump internal check-valve failure causing fuel pressure to bleed down overnight. This is common on these trucks and is a safety concern because the vehicle may fail to start in emergency situations or stall unexpectedly. No check-engine light is present. The issue is repeatable daily.” Faulty fuel pumps in these specific RAM models can suddenly fail while driving. This failure can lead to a complete loss of engine power without warning, increasing the risk of a crash.

Filed Aug 7, 2025 · Engine, Fuel system · CA

Subject: Fuel System Failure Resulting in Engine Damage – 2020 RAM 2500 Pickup VIN: [XXX] Complaint Summary: I am submitting this complaint to formally report a dangerous and costly fuel system defect in my 2020 Dodge Ram 2500 Pickup (VIN: [XXX] ) that has resulted in catastrophic engine damage. Although Chrysler has issued a recall for the high-pressure fuel pump (HPFP) in many 2020 Ram trucks equipped with the 6.7L Cummins engine, I was told that my vehicle was not included in the recall—even though it exhibits all the classic symptoms of HPFP failure. This is a safety hazard and a potential emissions violation. Details of the Incident: In June 2025, I brought my truck to Tracy Chrysler Dodge Jeep RAM after experiencing engine misfires, loss of power, and a knocking noise. The dealership diagnosed a P0303 cylinder misfire and noted a fuel smell in the engine oil, as documented in repair order #[XXX]. Despite extensive diagnostic work—including compression tests, leak-down, and injector swaps—the misfire remained unresolved, and a tapping noise persisted. The technician explicitly noted fuel contamination in the oil and suspected internal engine damage due to a fuel system issue. To further investigate, I submitted an oil sample to Blackstone Laboratories. The lab confirmed the engine oil was heavily diluted with diesel fuel—over 10% fuel contamination, which reduced the viscosity from 5W40 to the equivalent of 5W20. This is consistent with HPFP failure leaking fuel into the crankcase. The oil report also noted excessive steel wear and recommended immediate oil change and fuel system inspection. At no time was a check engine light present, nor was there a clear diagnostic code for HPFP failure. Chrysler continues to deny responsibility even though the evidence clearly points to a failed HPFP—a well-documented issue for this engine model and year. The cost of diagnosis and parts alone has exceeded $4,000, and the engine is likely destroy INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA

Filed Jun 1, 2025 · Acceleration, Fuel system · AL

Following completion of the Y78 (high-pressure fuel pump) and XQ1 (emissions) recall repairs in April 2024, our 2019 Ram 2500 immediately began experiencing misfires, fuel system issues, and ongoing performance problems. These symptoms have persisted for over a year and have never been resolved despite repeated service visits and escalations. The vehicle suffered multiple HPFP failures, including one that caused fuel to leak into the crankcase, resulting in approximately 19 quarts of fuel-contaminated engine oil. Despite technical service bulletins calling for specific system flushes and tests post-repair, the original dealership did not follow these protocols or provide documentation confirming that the required inspections (fuel pressure, contamination checks, EGR/DPF/DEF system functionality) were ever completed. A new dealership confirmed the presence of metal debris after the fuel filter, suggesting the system was still contaminated even after the prior recall-related flush and HPFP replacements. They also found non-functional emissions components covered under XQ1, including a failed DPF urea pump and a faulty NASA pressure sensor. These failures were not documented or addressed by the original repair facility. Despite these clear safety risks, the recall is considered “completed,” leaving us with a vehicle that is still experiencing symptoms consistent with the original recall condition. The failure to properly inspect, document, and address these defects has placed our safety at risk and caused prolonged loss of vehicle use. The issue, confirmed by a 2nd authorized dealership, identified fuel contamination & failure in multiple components of the emissions systems. The check engine light appeared prior to the initial failure and has recurred each time the vehicle was returned after service. Given the continued presence of recall-related symptoms and the lack of proper inspection & documentation, this unresolved recall should be reopened and investigated

Filed Jan 29, 2025 · Fuel system · 126,513 miles · FL

The contact's husband owns a 2020 Ram 2500. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the diesel particulate filter had failed due to the high-pressure fuel pump (HPFP) failure, which caused metal shavings to enter the fuel system. The dealer determined that the HPFP and the entire fuel system needed to be replaced. The dealer informed the contact that the manufacturer had offered to partially cover the repair cost through goodwill assistance. The vehicle was not repaired. The contact stated that the vehicle was previously repaired under the federal safety agency Campaign Number: 21V880000 (Fuel System, Diesel); however, the recall repair failed to fix the failure. The manufacturer was notified of the failure and a case was filed; however, the manufacturer had failed to respond to the contact's follow-up emails and calls. The failure mileage was approximately 126,513.

Filed Sep 14, 2024 · Engine · FL · fire

Initially I witnessed a large volume of smoke coming from the exhaust pipe when pulling up to fuel pump. A passer-by informed me that there were flames underneath the truck on the passenger side. I then got out of truck, stooped down to look underneath, and observed a hose leading from the exhaust system on fire and multiple exhaust components glowing red hot. After getting my passenger out of the truck I got back in, put it in drive and pulled forward away from the fuel pumps and made it about forty feet before truck engine stalled. I then proceeded to get a fire extinguisher from the fuel pump lanes and extinguish the fire and directed the remaining agent at the hotspots to cool them. After the fire department ensured the vehicle was safe to move it was towed to the local RAM dealership where it is now awaiting service technicians to inspect the damage after the weekend.

Filed Jul 2, 2024 · Electrical, Engine · CO

Upon starting the trucks engine, putting the transmission in gear (either Reverse or Drive), at idle engine speed (approx 700-800 rpm) or very low (near idle speed) the trucks engine starts to surge from idle then drops down to 500 rpms with a voltage drop (5V) too. It will do this a couple of times and then the trucks engine dies (engine stops) while in gear and no codes are shown on the CEL or saved in the vehicle control module. When I put the transmission in Park, the trucks engine restarts without a problem. But when I go to Drive or Reverse gear it then will do it again. The truck sounds like the engine brake is being applied causing the engine to lug/bog down. The torque converter has been inspected and replaced. The fuel pump/lifter has been replaced. The batteries have been replaced. The fuel filters have been serviced; the crank case breather has been serviced. The emissions controls equipment (EGR valve) have been serviced/cleaned. Knowing that my trucks engine can cut out/die at anytime at low rpms, poses a safety hazard. Knowing that the truck can do this without a code being throw feels unsafe.

Filed Dec 3, 2023 · Acceleration · GA

Component/System Failed:The stability control system, and subsequently, the cruise control system of my 2019 Ram 2500 malfunctioned. The vehicle is available for inspection upon request. Safety Risks:The malfunction posed a significant safety risk as it occurred multiple times while driving at speeds of 50mph to 74mph. The unexpected failure of the stability control could lead to a loss of vehicle control, especially at high speeds, increasing the risk of an accident. Additionally, the deactivation of cruise control without warning could lead to sudden changes in vehicle speed, potentially surprising the driver and leading to unsafe driving conditions. Reproduction of the Problem & Inspection by Manufacturer/Other Parties: The truck is currently at AutoNation Ram 265 Drivers Way A, Hardeeville, SC 29927 Warning Signs: None Best Assessment of Incident and Cause: Unknown, but this began occurring after the replacement of the recalled high pressure fuel pump.

Filed Sep 26, 2023 · Fuel system · TX

My 2022 Ram 2500 with only 9,900 miles failed to start requiring it be towed to the dealership. The dealer reported the fuel injector harness had failed and replaced it but then it started throwing other codes. The technician determined there was metal shavings in high pressure fuel pump (HPFP) so they contacted Ram engineers and started a STAR case. After two months and countless "pictures" taken and sent the the Ram engineers, they claim it was contaminated fuel which caused the metal shavings to be found in the HPFP. The engineers stated that there were no metal shavings found in the return filter so the metal shaving came from "contaminated fuel." This logic is impossible because for metal shavings to make it from the fuel tank to the HPFP and be visible they must travel through two fuel filter, one of which filters down to 5 microns. The dealership acknowledged the engineers logic didn't make sense to them either. The return filter showed some debris but if metal shavings can pass through a 5 micron paper filter than it would also pass through the metal screen found on the return line inside the tank. Ram is refusing to honor their warranty and trying to stick me with the bill even after they already are aware of a faulty fuel pump in their trucks.