Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Ram 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2018 Ram 1500. The contact stated that while driving approximately 20 MPH and making a right turn, the vehicle started vibrating and almost stalled. The contact stated that the check engine warning light and a warning light for the throttle body was illuminated. The contact stated that the vehicle stalled. The contact attempted to restart the vehicle and was able to drive off the roadway; however, the vehicle stalled again. The contact was unable to restart the vehicle. The contact raised the hood and there was oil on the engine block and there was the odor of diesel fuel in the engine compartment. The contact had the vehicle was towed to a local dealer. The dealer diagnosed the vehicle and determined that the fuel pump had failed, and that the engine had been contaminated and needed to be replaced. The vehicle was not yet repaired. …
The contact owns a 2018 Ram 1500. The contact stated that while driving at 50 MPH, the vehicle was accelerating and decelerating unexpectedly. The check engine warning light was illuminated, and a message to shift to park(P) was displayed. The contact pulled to a safe location and parked and turned off the vehicle. The vehicle was towed to the dealer, where it was diagnosed and it was determined that the high-pressure fuel pump (HPFP) was fractured, causing metal shavings into the fuel system. The dealer determined that the high-pressure fuel pump (HPFP), the fuel rails, the fuel line, and the fuel injectors needed to be replaced. The dealer informed the contact that the failure was related to NHTSA Campaign Number: 22V406000 (Fuel System, Diesel); however, the parts to do the recall repair were not yet available. The vehicle was not repaired. …
The contact owns a 2018 RAM 1500. The contact stated that while driving at an undisclosed speed, the vehicle stalled and lost motive power. The throttle control warning light was illuminated. The vehicle was towed to an independent mechanic where it was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer and was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The contact was informed that the parts were on backorder. The contact received notification of NHTSA Campaign Number: 22V406000 (Fuel System, Diesel); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. …
On [redacted], at [redacted], my 2018 Dodge Ram Eco diesel engaged in fire. At this time, I called 911 and the Fire Department from which I obtained the fire report from respond and extinguish the fire. No police were ever dispatched. After exiting the vehicle, it seems like the vehicle was already on fire due to the progression of the fire already. I recently got the truck back from a local Dodge Dealership Cannon in Westpoint MS due to a high-pressure fuel pump recall. The truck also had another recall for failure of the EGR cooler. Which will result in possible fire according to their recall. …
The contact owns a 2018 Ram 1500. The contact stated while driving 50 MPH, the vehicle lost motive power. There was no warning light illuminated. The contact was able to veer to the side of the road. The vehicle was towed to the contact's residence. The vehicle was then towed to the dealer, where it was diagnosed and determined that the high-pressure fuel pump (HPFP) had failed. The fuel system assembly was replaced. The contact related the failure to NHTSA Campaign Number: 22V406000 (Fuel System, Diesel). Additionally, the contact stated while driving 70 MPH, the check engine warning light illuminated, and the vehicle lost motive power. The vehicle was towed to the residence. The vehicle was then towed to the dealer, where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. …
The contact owns a 2018 Ram 1500. The contact received notification of NHTSA Campaign Number: 22V406000 (Fuel System, Diesel) however, the part to do the recall repair was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact then stated that while driving at an undisclosed speed, the vehicle lost motive power and stalled. Additionally, the contact stated that on multiple occasions while attempting to start the vehicle, the engine failed to turn over. The contact stated that a message appeared indicating an electronic fuel pressure failure. The vehicle was towed to the dealer where it was diagnosed that the EGR cooler, EGR valve, and exhaust manifold needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure and offered to cover half of the cost, but the contact declined. …
The contact owns a 2018 Ram 1500. The contact stated that the vehicle was experiencing hard starts and was making abnormal sounds. The check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the failure was related to NHTSA Campaign Number: 22V406000 (Fuel System, Diesel). The contact stated that unknown parts were replaced; however, the failure recurred increasingly while driving. The contact stated that while her husband was driving 40-50 MPH, the vehicle stalled inadvertently. The check engine warning light was illuminated. The contact's husband was unable to veer to the side of the road. The contact's husband was able to restart the vehicle and drove to his residence. The vehicle was taken to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure but did not provide any assistance. …
The contact owns a 2018 Ram 1500. While the contact's mother was driving at highway speeds, the vehicle stalled. There was no warning light illuminated. The contact used a code reader and retrieved a code related to the high-pressure fuel pump (HPFP) that the HPFP was operating at half the required pressure. The vehicle was taken to the dealer where it was diagnosed with an HPFP failure. The contact was informed that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The contact was informed that the fuel system was contaminated. The contact was informed that the repair was not covered under warranty. In addition, the contact stated that the high-pressure fuel pump was replaced in October 2025 under NHTSA Campaign Number: 22V406000 (Fuel System, Diesel). The manufacturer was not made aware of the failure. The failure mileage was approximately 80,900.
The contact owns a 2018 Ram 1500. The contact stated that upon attempting to start the vehicle, the vehicle failed to start. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who determined that the high-pressure fuel pump system was clogged and required a fuel system flush. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 22V406000 (Fuel System, Diesel). The VIN was included but parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The failure mileage was 144,000. VIN tool confirms parts not available.
The contact owns a 2018 Ram 1500. The contact received notification of NHTSA Campaign Number: 22V406000 (Fuel System, Diesel) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that after the vehicle was parked, the contact returned and attempted to restart the vehicle however, the vehicle failed to start. The vehicle was towed to the dealer and diagnosed with a failed high-pressure fuel pump. The contact was informed that the high-pressure fuel pump needed to be replaced. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 189,000. VIN tool confirms parts not available.
Related recalls
Fuel system, diesel › Delivery › Fuel pump
Chrysler (FCA US, LLC) is recalling certain 2014-2020 Jeep Grand Cherokee, and 2014-2019 Ram 1500 vehicles equipped with 3.0L diesel engines. A high pressure fuel pump (HPFP) failure may introduce internal debris into the fuel system, potentially resulting in fuel starvation.
Remedy: Dealers will replace the HPFP, and inspect and replace, if necessary, additional fuel system components, free of charge. Interim notification letters informing owners of the safety risk were mailed July 21, 2022.
NHTSA investigations
High pressure fuel pump failure
The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021, to investigate incidents alleging a stall/loss of motive power as a result of high-pressure fuel pump failures in certain model year (MY) 2019-2020 Ram 2500, 3500, 4500, and 5500 heavy duty trucks equipped with 6.7L Cummins turbodiesel engines.
Fuel System complaints in other 1500 years
Frequently asked questions
How common are fuel system problems on the 2018 Ram 1500?
NHTSA has 140 complaints about the fuel & propulsion system of the 2018 Ram 1500, 21% of the model year's 665 complaints. The component named most often is delivery › fuel pump (2 mentions).
Is there a recall for 2018 Ram 1500 fuel system problems?
Yes — NHTSA recall 22V-406 (fuel pump, Jun 9, 2022). Recall repairs are free at authorized dealers.
At what mileage do 2018 Ram 1500 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 64,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 1 injury to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.