Engine & cooling

Ram 2500 Crew Cab Engine problems by year

47 complaints filed with NHTSA about the Ram 2500 Crew Cab's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

352022 2023

Year	Engine complaints	Crashes	Injuries	Recalls
2023	12	0	0	0
2022	35	0	0	0

Latest 2500 Crew Cab engine complaints

2022 Ram 2500 Crew Cab Acceleration & cruise control Engine & cooling Fuel system

The DPF system failed prematurely at 68k. My truck as working fine with zero problems until I took it in for the Y43 safety recall July 2025. the dealership performed the software update without verifying if parts were in stock first. They took the part (dpf module) off a used truck from the lot and installed it on mine without asking me first. They told me they would call me when the parts became available. They never called so I took it in for a battery issue were the batteries were overheating and dying. I asked...

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that they replace the used part and look into the fried battery issue. Knowing how this dealership operates I went ahead and marked the old part with nail polish. when I was called to pick up my truck I met with the GM and he assured me everything was taken care of and the new DPF Module was replaced. I got under my truck and the used part as still there. The GMs face went pale and couldn't believe that they had lied. He asked that I leave it so he could make things right. They replaced the DPF module and the batteries. I met with the service manager and he took full responsibility for the lies and theft. ( I have the conversation recorded). I went back a few days later to ask why my truck kept doing Regens like every 3 days and they informed me it was normal. fast forward to July 2006 same issues batteries fried and died then the DPF notification came up saying "DEF Filter Full Power Reduced See Dealer". I take it back to the same dealership and they informed me my DPF filter is full and I must pay 3800 out of pocket because the recall didn't cover it and neither does the extended warranty. I asked them how is it possible for my DPF filter to be full if all the REGENS are performed and the message will NOT clear until the region is complete. my filter never showed it was getting full and it never surpassed the 40 percent full and its impossible for it to be full from one day to the other. I took it to another dodge and stellantis refused to fix it.

2022 Ram 2500 Crew Cab Engine & cooling

Lifter failure occurred on dangerous interstate interchange complete loss of power while towing a 14k pound mobile restroom bumper pull trailer in 6 lanes merging traffic from center lane 45 mph exit onto 60 mph interstate speeds [redacted] going onto [redacted]/[[redacted]] my scanner said dpf plugged stellantis mechanic claims lifter failure problem is complete loss of power happened in a dangerous area and waiting for a tow while hooked to a trailer was also dangerous due to high traffic area INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2022 Ram 2500 Crew Cab Engine & cooling

The contact owns a 2022 Ram 2500. The contact received notification of NHTSA Campaign Number: 25V720000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

2022 Ram 2500 Crew Cab Engine & cooling Fuel system

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,...

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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.

2022 Ram 2500 Crew Cab Electrical system Engine & coolingFire

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

2023 Ram 2500 Crew Cab Engine & cooling

Vehicle: 2023 Ram 2500 Diesel (6.7L Cummins) - approx. 36,000 miles, under factory warranty Complaint Summary: Our 2023 Ram 2500 diesel is producing visible smoke from the engine bay and a persistent ticking/clicking noise from the engine. This occurs while driving and at idle. We have video evidence of smoke coming from under the hood and recordings of the abnormal engine noise. Safety Concerns: The smoke creates a serious fire hazard and risk of mechanical failure. Engine-bay smoke can indicate an electrical...

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short, fuel or oil leak, overheating component, or exhaust/turbo malfunction. This poses a risk of engine compartment fire, including the possibility of fire after the vehicle is turned off. NHTSA Recall 23V-060 for 2021-2023 Ram HD diesels describes electrical failures that can cause under-hood fires, showing this vehicle line has known fire-related safety issues. The smoke also presents a health and inhalation risk, especially to our children who ride in the vehicle. Diesel/exhaust fumes entering the cabin can cause respiratory irritation and impair driver alertness. A sudden escalation could result in loss of power, breakdown, or fire while driving. Dealer Response: We brought the vehicle to an authorized Ram dealership in February 2026. Despite the truck being fully under warranty, the dealer stated that because there is "no active recall," they will not repair or further diagnose the problem. No meaningful corrective action was taken. Evidence Available: Videos showing smoke from the engine bay, audio/video of the ticking noise, and dealership service paperwork. We are requesting NHTSA investigate this as a potential safety defect due to fire risk, toxic fume exposure, and the manufacturer's failure to address a dangerous condition in a nearly new, warrantied vehicle. We are paying on this vehicle monthly, are scared to drive with our children in the car. We have to pull over and not drive the vehicle due to how strong the cabin odor is.

2022 Ram 2500 Crew Cab Transmission & drivetrain Engine & cooling

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...

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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.

2022 Ram 2500 Crew Cab Electrical system Engine & coolingFire

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 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2022 Ram 2500 Crew Cab Engine & cooling

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.

2023 Ram 2500 Crew Cab Engine & cooling

My 2023, Ram 2500 truck with a Cummins 6.7L diesel engine has a known defect with the grid heater bolt. This bolt can loosen or break off, falling into the engine and causing catastophic engine failure. This creates a suddne loss of power, espcially dangerous when towing heavy loads at highway speeds. Numerous owners have reported this issue, yet no recall has been issued. I request investigation and action to protect driver safety.

2022 Ram 2500 Crew Cab Engine & cooling

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...

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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.

2022 Ram 2500 Crew Cab Engine & cooling

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.

2022 Ram 2500 Crew Cab Engine & cooling

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

2022 Ram 2500 Crew Cab Transmission & drivetrain Engine & cooling Fuel system

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...

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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.

2022 Ram 2500 Crew Cab Engine & cooling

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.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data