Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2022 Ram 2500 owners, lightly cleaned up (personal details are redacted by NHTSA).
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.
My truck was started in the morning and as it sat idle in the driveway I started attaching my trailer. By the time I got the trailer attached(20 seconds) there was smoke pouring out from under the hood. I immediately turned off the truck popped the hood and it was engulfed in flames. I was able to put out the fire with the garden hose. No check engine lights, no warning lights on dash, and I had just got it back from the dealership 2 days earlier and it passed a safety inspection before I picked it up. Im not sure what component failed but whatever did caused a fire
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 [phone] 11/16/2023 case #[redacted]. Have had no further response from Chrysler.
The contact owns a 2022 Ram 2500. The contact received notification of NHTSA Campaign Number: 22V835000 (Power Train) 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. The contact stated that approximately an hour after driving there would be a burning oil odor inside the cabin of the vehicle. The manufacturer was made aware of the issue. The approximate failure mileage was 4,000. Parts distribution disconnect.
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.
We are the subrogees of State Farm mutual Insurance. We are reporting that on 7/31/24 the insured vehicle a 2022 Ram 2500 caught fire due to electrical issue while being driving on the highway in Baltimore, maryland
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. …
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. …
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. …
DEF sensor malfunctions, threatening to limit vehicle to 5 mph or stop completely. This is because DEF fluid freezes in cold weather. Sensor reads that DEF tank is empty, even when it is full. Contacted local dealer who confirmed the issue and noted that it is a prevalent problem and he has a backlog of trucks with the same issue. I consider this a safety issue, as I could be stranded on the road in winter conditions or not have access to my vehicle in case of emergency. Google search shows that this is a significant issue affecting many people. Dealer said that the only solution is to put the vehicle in a heated garage for several days to defrost the DEF and allow the sensor to reset. They currently have a backlog of several weeks. And then what happens when you get it back? You hope it doesn't refreeze and strand you on the road somewhere?
Related recalls
Engine and engine cooling › Engine › Engine control module (ECU/ECM)
Chrysler (FCA US, LLC) is recalling certain 2022 Ram 3500, 3500 Cab Chassis, Ram 2500, and 4500 and 5500 Cab Chassis vehicles equipped with Cummins 6.7L turbo diesel engines. The engine control module (ECM) may have been built with a misaligned capacitor that can short-circuit, resulting in an internal loss of communication.
Remedy: Dealers will replace the ECM, free of charge. Owner notification letters were mailed October 20, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is Z87.
Engine complaints in other 2500 years
Frequently asked questions
How common are engine problems on the 2022 Ram 2500?
NHTSA has 35 complaints about the engine & cooling of the 2022 Ram 2500, 19% of the model year's 181 complaints. The component named most often is engine › oil/lubrication (1 mentions).
Is there a recall for 2022 Ram 2500 engine problems?
Yes — NHTSA recall 22V-642 (engine control module (ecu/ecm), Aug 26, 2022). Recall repairs are free at authorized dealers.
At what mileage do 2022 Ram 2500 engine problems start?
Half of the complaints with a recorded mileage happened before about 5,000 miles, and 100% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 3 fires and 0 injuries to engine & cooling 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.