2021 Ram 2500 engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 10, 2026FLEngineOther / UnknownTransmission & Drivetrain

   I am writing to formally follow up regarding complaint/case number 97989810 through Dodge and to request that this matter be elevated for a complete technical review concerning my 2021 Ram 2500 6.7L Cummins, VIN [XXX]. Time - Line PRIOR FACTORY-WARRANTY REPAIR The XXX factory-warranty repair is an important part of this vehicle's mechanical history. That repair involved the timing-cover/timing-gear-case area and front crankshaft seal. As part of that repair, the harmonic…

   NHTSA complaint #11763494 · source
2. Filed Jul 31, 2026CADriver Assistance & Safety TechEngine

   The contact owns a 2021 Ram ProMaster 2500. The contact received notifications of NHTSA Campaign Numbers: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer, and the contact was informed that the repair might take 2 or 3 days to be completed. The…

   NHTSA complaint #11753967 · source
3. Filed Mar 21, 2026KSFireEngineFuel, Hybrid & EV PropulsionOther / Unknown

   Vehicle caught fire while engine was running, vehicle idling. Vehicle is a total loss. Prior NHTSA complaints regarding these vehicles causing fire from electrical components under the hood. Unknown if fire was due to electrical or leaking fuel issues under the hood. Major safety risk to occupants, especially children in car seats. Fire became out of control and burned the interior of the vehicle to bare metal. There were no injuries in this incident. This report being…

   NHTSA complaint #11726100 · source
4. Filed Mar 18, 2026TXEngine

   Ram is refusing to repair and item on my truck egr cooler is cracked, leaking and burning coolant. They have recalled every year model but mine. All have same issue, all have same part and part number. Dealership suggested I contact NTSB to see if I could get it recalled. It is said to cause ifres in some trucks

   NHTSA complaint #11725303 · source
5. Filed Jan 4, 2026COEngineTransmission & Drivetrain

   The lifters failed at 64,000 miles they where replaced under warranty. but now the lifters are making noise again with 71,000 miles since replaced. it’s a bad design that could be fixed permanently with the right parts! No warning lights just failure.

   NHTSA complaint #11708630 · source
6. Filed Sep 24, 2025WAFireEngine

   After starting the vehicle, fire smell came into the cab. After exiting the vehicle smoke was coming from the engine. The engine caught on fire and car was totaled within 10 minutes.

   NHTSA complaint #11689556 · source
7. Filed Jun 18, 2025GAEngine

   Transmisson makes a whining noise when shifting gears when excelerating. I have taken it to the local ram dealership 4x now. Fca did approve a small transmission part repair, but unfortunalty it did not fix the problem.

   NHTSA complaint #11667678 · source
8. Filed Apr 30, 2025KYEngine

   Imminent lifter failure. Has a very loud tick. This is a very common and almost always catastrophic failure. This is on the 6.7L Cummins engine

   NHTSA complaint #11657727 · source
9. Filed Feb 6, 2025FLEngine

   The engine has had camshaft and lifter failure multiple times. The dealership has replaced the camshaft and lifters twice already , and now they have failed a 3rd time which has lead to metal in oil lubrication system. This has caused further damage to the engine crankshaft bearings, in my case the engine was still running with a tapping/knocking noise. However, this can result in engine locking up and causing vehicle to no longer operate. In the event of engine failure this…

   NHTSA complaint #11641149 · source
10. Filed Jan 28, 2025TNEngine

    Heater quit working on driver side only. Still heats on passenger side. Took it into an ASE mechanic and they said they have seen multiple RAM trucks with this same problem. It isn't the heater or heater core. It is the Cooling system - gaskets failed, and coolant sprays across intake.

    NHTSA complaint #11639083 · source
11. Filed Dec 15, 2024NVEngineFuel, Hybrid & EV Propulsion

    August of 2023 I took my truck in for a check engine light. The dealership diagnosed it and said my def tank senor is turning on the check engine light. They repaired it, when I picked up the truck they told me that "it was burnt out" and replaced the part. Now 14 months later it's having the same issue. Wondering if other ram 2500 owners are having this same issue and if it is a repetitive issue. The repair cost me over $963.00 dollars.

    NHTSA complaint #11630801 · source
12. Filed Jun 11, 2024UTEngine

    When placing the truck in first gear to control speeds on steep declines both on and off road the vehicle's RPMS will climb significantly and the truck will accelerate abruptly under it's own power until it reaches 21-25mph. At which point the RPM's come down and truck begins to slow as expected. Once truck reaches a speed of 11mph the RPM's begin to climb again and the truck accelerates(Not due to gravity, but accelerates under it's own power) aggressively. It will continue…

    NHTSA complaint #11593628 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology