2022 Ram 1500 engine problems

“I have a 2022 RAM 1500 Longhorn Limited VIN [XXX]. It had a real problem a couple of years ago with stalling to a stop and die when making slow left hand turns. Went to the dealer twice. They claimed it was nothing but after the second visit, it no longer did it anymore. It’s done it twice in the past couple of months. This evening it did it at a three way stop sign with no turn. When it shuts off it’s in drive of course and it auto shifts to park and sets the emergency brake automatically. Then I can start the engine again but I have the press the emergency brake switch button to release it. Then the low voltage light appears on the instrument cluster and the voltage gauge stays only about a quarter of the way up above zero on the negative side. To remedy this I have to shut off the engine and sometimes open the door for a while, close it and then start the engine and all is well again. I know RAM plays dumb when I describe this to them.”

“The truck has stalled twice while in motion. Leaving me stopped suddenly in middle of the street. This has happened on 2 separate occasions. I did not think to save the dates. Initially I thought maybe I wasnt giving it enough throttle, but after reading more into it I see there was a recall for the previous year model and this may be considered problematic as well. The truck made me apply the brake to restart, and release the emergency brake since it applied on its own. The first stall I had to turn sharp and fast to try getting to the side of the road to make room for coming and going traffic and avoid being in a collision. The second stall I was luckily the only driver on the road at the time. I'm reading it could be the MGU system and I have also noticed my battery voltage starting to fluctuate more. I jave not taken to the dealer yet as this is my means of transportation for work and we are a 1 income family of 4. I do not get a rental if I have to leave the truck at the dealer.”

“I am reporting a recurring engine defect involving the Multi-Displacement System (MDS) in my 2022 RAM 1500 Big Horn equipped with the 5.7L HEMI eTorque engine. Since purchasing the vehicle in March 2023 with approximately 4,555 miles, the truck has experienced four separate MDS-related failures despite multiple repair attempts by authorized RAM dealerships. On February 7, 2025, at approximately 38,115 miles, a RAM dealership diagnosed an MDS solenoid that had physically separated and required extraction and replacement. On May 1, 2026, at approximately 66,149 miles, another authorized dealership diagnosed an MDS failure involving cylinder No. 1 and performed repairs under warranty. Despite these repairs, the engine experienced another serious failure at approximately 73,000 miles. The most recent failure involved metal contamination and catastrophic internal engine damage, leaving the vehicle completely inoperable. I am concerned that the repeated MDS-related failures indicate a potential defect in the engine's cylinder-deactivation or valvetrain components. Failures involving these components may cause significant engine damage and potentially result in an…”

“The vehicle experienced a sudden powertrain failure at a busy intersection failing to automatically restart during an auto start/stop cycle on October 6, 2026. Upon manual override, the mild hybrid motor generator unit (MGU failed to adequately charge the 48V/12V electrical systems. This failure leaves the driver highly vulnerable to a total high-speed vehicle stall in active traffic due to rapid battery depletion. The manufacturer and dealership is unlawfully denying federal coverage for this emissions/hybrid component. At the time of the incident the vehicle had approximately 59,248 miles on it. I called the dealership (as I believed this would be covered under the 60,000 mile powertrain warranty) that day describing the failure. The earliest appointment I could get was October 16th. By the time my truck went in for the appointment the mileage was 60,130 miles. The dealership Identified the failure as the charging system for the Ram Hemi E-Torques motor. Specifically the Serpentine Belt Tensioner Part #: 05281543AD, 05281956AA, and 68518738AA. Also prescribed a software update. The total quote for the repairs was 1534.80. The dealership denied warranty…”

“On three occasions over the last 6 months my truck has died completely. The first time all warning lights came on and there was no speed showing but the truck kept driving. When I finally parked and restarted everything was normal. The second time all warning lights came on the cool air turned hot and then it just died while driving. I was very close to parking so no danger there. This last time I was parked in a swamp hunting and when we got back to the truck it was completely dead. I was able to jump it thankfully as we were in the middle of nowhere and it was hard to get to, not sure help would have been able to get in there. When restarted it once again had all warning lights on, said I had no gas, and wouldn't provide my speed when driving.”

“My 2022 Ram 1500 Big Horn V6 eTorque stumbles and cuts out during hard acceleration, this issue, when it happens has caused a dangerous performance issue to the point that I have almost been struck from behind while attempting to join the flow of traffic, the actions of either the PCM or some other engine control system cuts all motor RPM to barely an idle while traffic around me are at speeds of 40+ MPH while I am attempting to accelerate, I get a brief warning message on the display screen that flickers for less then one second (I am unable to read the warning) this is extremely dangerous. I also have been getting UCONNECT ERROR - none of these are leaving error codes in the vehicles memory.”