2022 Ram 2500: check engine light

Filed Jul 28, 2026 · Steering · 31,000 miles · MS

The contact owns a 2022 Ram 2500. The contact stated that while driving approximately 70 MPH, the steering wheel jerked to the right and the traction control warning light illuminated. The contact stated that while the vehicle was parked, the electronic stability control, Forward Collision Avoidance, check engine, and power steering warning lights were illuminated. The vehicle was taken to a dealer, where it was diagnosed and determined that there was water intrusion in the rack and pinion, causing corrosion of the electronic power steering system and several other unknown components that needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 31,000.

Filed Jun 10, 2026 · Engine, Fuel system · AL

The vehicle has experienced repeated failures related to the diesel emissions system despite multiple repair attempts. The primary symptom is an illuminated check engine light accompanied by diagnostic trouble code P2459 (Diesel Particulate Filter Regeneration Frequency). The vehicle frequently enters regeneration cycles and continues to exhibit the same symptoms after major emissions system repairs. The emissions system components, including the Diesel Particulate Filter (DPF) and related DEF system components, were previously replaced by an authorized dealer. Following those repairs, the same warning light and fault code returned. The vehicle was subsequently inspected by another authorized dealer, which was unable to identify a definitive cause of the recurring condition. The check engine light was cleared, but it returned less than a week later with the same symptoms. The failure creates a safety concern because the vehicle may enter reduced-power or limp-home operating modes without warning, potentially limiting acceleration and the ability to maintain traffic speed. This is especially concerning when merging onto highways, crossing intersections, towing loads, or operating in heavy traffic. The recurring nature of the failure has reduced confidence in the reliability and safe operation of the vehicle. The condition has been reproduced multiple times and has been documented by authorized service facilities. Warning lamps and fault codes have repeatedly reappeared following repairs. The vehicle and emissions system components remain available for inspection upon request.

Filed Apr 25, 2026 · Electrical, Engine · IL · fire

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

Filed Dec 6, 2025 · Fuel system · IL

My 2022 Ram 2500 6.4L HEMI has a long crank/hard-start issue every morning. It takes 5–6 attempts to start when the vehicle sits overnight. After starting once, it runs normally the rest of the day. I also had issues where the truck struggled to start after refueling. I replaced the gas cap and EVAP purge valve, which improved the refueling issue, but the long-crank cold start continues. I suspect a fuel pump internal check-valve failure causing fuel pressure to bleed down overnight. This is common on these trucks and is a safety concern because the vehicle may fail to start in emergency situations or stall unexpectedly. No check-engine light is present. The issue is repeatable daily.” Faulty fuel pumps in these specific RAM models can suddenly fail while driving. This failure can lead to a complete loss of engine power without warning, increasing the risk of a crash.

Filed Sep 23, 2025 · Engine · AL

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.

Filed Aug 10, 2025 · Electrical · TX

Crankshaft position sensor went out at highway speed pulling a 5th wheel. Truck shut down in traffic and all power was lost. The throttle position engine light came on and the truck overheated and completely shut down nearly causing a high speed crash on I/40 east of amarillo. The 5th wheel was 17000 pounds and the truck had 37000 miles on it. The dealer (Lipscomb Dodge Elk City , OK) advised it was the crankshaft position sensor and that it was on the same circuit as numerous other sensors that are vital to keeping the engine running and the truck operating safely. The truck is available for inspection, and now has a loud ticking noise (possibly an injector, lifter, or exhaust leak due to the over heating caused by the faulty sensor.

Filed Jun 4, 2025 · Engine, Fuel system · AL

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.

Filed Apr 3, 2024 · Fuel system · 17,000 miles · KY

The contact owns a 2022 Ram 2500. The contact stated that while driving at an undisclosed speed, the "Service DEF Now." Message and check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the diesel exhaust fluid (DEF). The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who was unable to diagnose the failure but informed the contact that all diagnostic trouble codes were cleared. Later, the contact stated that while driving at an undisclosed speed, the vehicle displayed the message "Unable to Exceed 5 MPH." After which, the vehicle lost significant motive power. The vehicle was again taken back to the dealer, who was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 17,000.

Filed Mar 20, 2024 · Transmission · 33,962 miles · NJ

The contact owns a 2022 Dodge Ram. The contact stated while driving at various speeds, the check engine warning light illuminated. The contact stated that on some occasions, the message "Regenerate the Vehicle" was displayed. The vehicle was taken to a dealer, where it was diagnosed that the powertrain software module needed to be updated. The vehicle was repaired; however, the failure recurred. The vehicle was then taken to another dealer, where it was diagnosed, and the dealer determined that the urea pump needed to be replaced. The part was replaced; however, the failure recurred. The vehicle was taken back to the same dealer, where it was determined that the air filter, the catalytic converter, the nitrous oxide sensor, the temperature sensor, and the particulate matter sensor needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was 33,962.