2022 Ram 2500 Engine Problems

I am reporting a recurring safety defect involving hydraulic lifter failure in Ram trucks equipped with the Cummins diesel engine (model years 2019–2024). This issue is widely acknowledged by Stellantis and multiple dealers. It typically begins with a knocking sound and has been documented in many cases to progress to complete engine failure. My vehicle has fewer than 20,000 miles. The lifters were already replaced once, which required the cab to be removed. Within less than 400 miles of that repair, the knocking sound has returned. I brought the truck to a second dealer, who confirmed the problem and informed me that Stellantis has an active STAR case acknowledging the defect. They stated there is currently no known permanent fix. This defect presents a serious safety concern. Sudden engine failure while driving, especially under load or at highway speeds, could lead to loss of power, loss of steering/braking assist, and potential accidents. In my situation, I frequently travel with family members who have medical conditions, and being stranded in hazardous or remote conditions poses significant risk. At this point, my vehicle is not reliable or safe to operate. I am requesting NHTSA investigate the hydraulic lifter defect in 2019–2024 Ram Cummins trucks due to the safety implications and the lack of an available permanent repair.

DPF regeneration frequency. Truck began exhaust regeneration at frequent intervals. Truck produced check engine light for "regen frequency P2459". Problem verified by dealer. Cause of the issue is unknown.

Truck has had lifters replaced due to tick, sluggish performance and engine vibration. Truck was driven less then 500 miles and problem re-occurred. With research I have learned this is a widespread problem, and ram techs have reported complained there is no fix, and they are just reinstalling parts that will fail again. I feel the engine has had metal ran through it which in my opinion could cause this engine to seize up at. T tow a larch travel trailer with my family an and small pets in this vehicle.i live in the Desert where temperatures reach in the 120s. I can’t have a vehicle that could stop running leave myself and my family in a situation where the truck stops running, to be either hit by another vehicle or on the road side broken down. Problem was documented at 17000 miles and still under the 3 year 36 warranty.

Engine had a tick, dealer said it was lifters. Dealer replaced lifters after having the truck for three weeks. Noise is back 2022 ram 6.7 with 17000 miles. This issue could cause engine failure at any speed and I use this truck to pull a large travel trailer. I’m concerned the noise is back and putting metal shavings into the engine will cause catastrophic engine failure at some point.

The Mass Air Flow (MAF) sensor on my 2022 Ram 2500 failed, causing multiple system malfunctions. It triggered inaccurate Diesel Particulate Filter (DPF) codes and showed abnormally high idle hours that do not reflect actual vehicle use. This defect is tied to a known issue identified by Stellantis in Technical Service Bulletin #18-002-24, which acknowledges improper MAF sensor calibration or compatibility on vehicles like mine. The bulletin was verbally confirmed by the dealership as applying to my truck. This faulty sensor caused emissions system errors, degraded engine performance, and may impact emissions compliance. There was a persistent check engine light, reduced fuel economy, and the risk of engine derating. The problem was reproduced and confirmed by Encore Chrysler (Mobile, AL), an authorized Ram dealership. Stellantis has agreed to cover the repair under Goodwill, but the issue appears systemic. Safety was potentially compromised by inaccurate sensor data that may cause sudden engine derate or failure during operation. Additionally, the incorrect idle hour readings could affect warranty determinations and long-term diagnostics if not corrected. The check engine light first appeared on May 21, 2024. The vehicle has been out of service since May 22, 2024, and repairs are still pending. The MAF sensor and affected systems are available for inspection upon request. This issue may affect a broader set of Ram 2500 trucks, and given the manufacturer’s internal bulletin, it may merit a recall review.

Hydraulic roller lifter failure. Very common these pickups . Mine went in for a ticking noise hydraulic roller lifter failed got stuck in the bore. They replaced all 16 they test drove it stuck exhaust lifter #2 they replaced that lifter and the camshaft. Engine still has a very loud clatter and ticking noise. Did not do this when it was brand new

5th gen ram with the 6.7 Cummins diesel have a massive problem with lifters. Extremely common for trucks with under 10k miles needing the extensive repair done. I’ve read in some cases people whole motors breakdown due to this failure while on the highway pulling a load. My specific truck had to have all the lifters replaced at 76k miles. There needs to be a manufacture recall on these.

Grid heater nut/bolt has been reported to deteriorate enough to allow the nut to drop into the intake manifold and get sucked into the engine causing catastrophic engine failure. This information comes from shops that have replaced the engines that have had this failure occur

Stater seized

The grid heater bolt can fail and fall into cylinder number 6 and cause catastrophic failure causing an accident. The 68RFE transmission is prone to failure and should be repaired/replaced. The hydraulic liters are subject to failure and should be replaced with solid lifters.

Truck would not start or crank over. It had to be towed to a repair shop and the starter had to be replaced.

Service def see dealer and max 5mph in 150 miles. Traveling on I-40 from East Tn heading home. 225 miles to go. On a Friday afternoon. Called dealers in area none could look at it until Monday. Stressing about possibility of going into derate at 5mph on interstate and getting rear ended. Had to rent a car and take to a dealer 160 miles from home. Spoiled my vacation because of a false warning about def level. All that was wrong was the code needed to be cleared.

Turning into a gas station parking lot in Colfax, Ca noticed smoke coming from under hood and there were flames in the engine compartment. No warning lights. A fire extinguisher was used to put out fire. Fire department responded. Truck was towed to John L Sullivan Dodge Chrysler Jeep RAM 950 Harter Pkwy, Yuba City, CA 95993. Report was filed with Chrysler at 800-992-1997 11/16/2023 case #[XXX]. Have had no further response from Chrysler. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This is a safety recall ISSUE, I continue to have a problem with this dealer (Hunter Dodge in Lancaster ca) on resolving 3 safety recalls on my 2022 Ram 2500 I have been on the dealers waiting list for 8 months now. Recently I received a call from Chrysler Co. that the dealer had the parts inhouse and I should call the dealer (Hunter Dodge in Lancaster ca) to set up an appointment. I called the person who is responsible at the dealership to get an appointment, she stated there was no reason for the appointment because she did not have the parts to fix my truck and hung up the phone. I received a call from Chrysler saying the parts are at the dealer, and yet when I call they continue to say the parts are not in. I am planning to go out of town with my family soon and I am VERY worried about this being a SAFTEY issue for 8 months now. I wonder if this problem qualifies as a 'Lemon Law' issue or any other action?, I hope you can help resolve this issue. [XXX] [XXX] 04/17/2024 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2022 Ram 2500. The contact stated while driving 75 MPH, the “Diesel Exhaust Fluid Low – 5 Miles Before LIMP Mode" message was displayed. The contact stated that the diesel fluid was refilled several times. The vehicle was taken to the dealer and the contact was informed that the exhaust fluid was contaminated and that the tank needed to be replaced, and the O-ring seal needed to be replaced. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was 18,000.

There is an open recall that is not being taken care of by the manufacture stating my truck engine will catch fire when parked. Seems to me they should fix this as soon as possible.

Dealer Paul cole motors in Fostoria Ohio sold me it on a stop order. I can email the paperwork

The contact owns a 2022 Ram 2500. The contact stated that while attempting to start the vehicle, there was a long crank time before the vehicle started. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the ambient temperature sensor needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer, but the mechanic was unable to duplicate the failure. The manufacturer was contacted but no additional assistance was provided. The approximate failure mileage was 5,000.

When decelerating at transmission shift point the engine will accelerate 200 to 500 rpm with no gas applied. The vehicle will lurch forward. Additional breaking is required to prevent possible incidents. Dealer say no codes so nothing they can do issue is repeatable.

This recall has NOT been fixed by the dealer since I had it there December 20, 2021 with the original recall Y76. I’ve received two more recalls for the Intake Air Grid Heater Relay 13A, have taken it in for service 2x now for it and am told still that parts are on back order. I’ve been told this since December 2021.