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Engine & cooling

2015 Ram 3500 Engine problems

Owners have filed 31 complaints about the 2015 Ram 3500's engine & cooling with NHTSA - 23% of all its complaints, most recently on October 6, 2026. They describe 0 crashes, 4 fires and 1 injury. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
31
Recalls
1
Crashes
0
Fires
4
Injuries
1
Deaths
0

Engine recalls for the 2015 Ram 3500

Engine and engine cooling: diesel

17V562000443,874 vehicles affected

The problem
Chrysler (FCA US LLC) is recalling certain 2013-2017 RAM 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, equipped with Cummins 6.7L Turbo Diesel engines that have Concentric-brand water pumps without a vent hole. These water pumps may leak coolant.
The risk
The leaking water pump can increase the risk of an engine compartment fire.
The fix
Chrysler will notify owners, and dealers will replace the water pumps, free of charge. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T51.

Engine complaints

SteeringSuspensionEngine & cooling

I own a 2015 Ram 3500 equipped with the 6.7L Cummins diesel engine. An authorized Ram dealership diagnosed an engine oil leak originating from the timing gear housing-to-engine block/cylinder block gasket. The leak has progressed beyond minor seepage. Engine oil is traveling down onto the chassis/track bar area and is leaving drops on the ground. The dealer estimated the repair at approximately $4,000 because of the extensive labor required to access and reseal the timing gear housing. My concern is that an engine...

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oil leak from this sealed housing may worsen over time and could potentially result in significant oil loss, contamination of nearby chassis components, or oil reaching hot engine/exhaust components depending on the path and severity of the leak. FCA/Stellantis has previously issued technical communications concerning oil leakage from the timing gear housing gasket. STAR Online Case [[redacted]], titled "Oil Leak From The Front Timing Gear Housing Gasket," instructed dealership technicians to document the leak location, photograph the condition, and measure the breakaway torque of the timing gear housing retaining bolts. FCA also issued later engineering communications involving the rear gear housing/timing case gasket on later Ram 6.7L diesel trucks, including requests to document loose housing bolts and retain removed bolts for engineering analysis. I am submitting this complaint because I believe this may represent a recurring engine oil leakage condition involving the timing gear housing on Ram heavy-duty trucks equipped with the 6.7L Cummins diesel engine. I am requesting that NHTSA review owner complaints and manufacturer technical communications to determine whether this condition presents a broader safety-related defect. Vehicle: 2015 Ram 3500 Laramie 4x4 Engine: 6.7L Cummins Turbo Diesel VIN: [[redacted]] Approximate repair estimate: $4,000 Dealer diagnosis: timing gear housing-to-engine block/cylinder block gasket oil leak INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Steering · Suspension · EngineNHTSA 11769446
Engine & cooling

I am filing this report to highlight ongoing safety and warranty issues with my 2015 Dodge Ram 3500, which is severely impacted by Recall 67A. This recall was intended to address emissions tampering, involving significant obligations for Stellantis/Cummins Inc. under the emissions extended warranty, termed the "Special Extended Warranty." Since the completion of the recall in January 2024, my vehicle has been inoperable for a total of 148 days due to significant defects. The vehicle has required six service visits...

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to address these issues, with the most recent visit occurring on October 31, 2024, when it was towed back to the dealership. Throughout this process, I have encountered a lack of effective communication from both Cummins and FCA, and my attempts to resolve these issues were largely ignored until I escalated the matter to federal authorities, including Randall Stone from the U.S. DOJ. The ongoing failure to address these defects has not only violated warranty obligations but also poses a risk to safety, as the vehicle remains inoperable. Impact of the Problem: The inability to use my vehicle has caused considerable disruption to my daily life, preventing me from performing essential tasks, including towing a camper and transporting heavy items. This situation has also led to significant emotional distress, given the prolonged nature of the issues and the lack of adequate responses from the manufacturer. Action Requested: I seek the NHTSA's assistance in investigating these ongoing issues with my vehicle and holding the manufacturer accountable for their failure to uphold warranty obligations and address safety concerns related to emissions defects.

Filed Incident Unknown or other · EngineNHTSA 11623214
Transmission & drivetrainEngine & cooling

Tl* the contact owns a 2015 ram 3500. The contact stated that the vehicle shifted into limp mode without warning, causing the vehicle to independently decelerate while driving at various speeds. The contact took the vehicle to lithia chrysler dodge jeep ram fiat of eugene (2121 martin luther king jr blvd, eugene, or 97401) where they diagnosed the vehicle with a defective turbo booster actuator. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 24,000.

Filed Incident Power train · EngineNHTSA 11377155
Engine & cooling

Tl* the contact owns a 2015 ram 3500. The contact stated that with the key in the ignition, the vehicle failed to start with several unknown warning lights illuminated. The battery cables were disconnected and reconnected and the vehicle resumed normal operation. The vehicle was taken to an independent mechanic to be diagnosed. The mechanic determined that the pcm failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The contact referenced nhtsa campaign number: 20v475000 (engine and engine cooling) as a possible solution to the failure however, the vin was not included. The failure mileage was approximately 80,000.

Filed Incident EngineNHTSA 11363224
Transmission & drivetrainEngine & cooling

Tl* the contact owns a 2015 ram 3500. The contact received notification of nhtsa campaign number: 19v818000 (equipment, engine and engine cooling) and nhtsa campaign number: 20v036000 (power train) however, the parts for the recall repairs were not available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact stated that normandin chrysler dodge jeep ram fiat located at 900 capitol expressway auto mall, san jose, ca 95136, exceeded a reasonable amount of time for the recall repairs. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Filed Incident Power train · EngineNHTSA 11323558
Equipment & accessoriesEngine & cooling

Tl* the contact owns a 2015 ram 3500. The contact received notification of nhtsa campaign number: 19v818000 (equipment, engine and engine cooling) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact contacted bill bryan chrysler dodge jeep ram 3401 us-441, fruitland park, fl 34731 where they informed that the part was not available. The manufacturer was notified and informed the contact the parts would become available in march 2020. The contact had not experienced a failure. Vin tool confirms parts not available.

Filed Incident Equipment · EngineNHTSA 11317271
Engine & cooling

Consistently getting a p00af engine code. Pertains to the turbo boost actuator. Apparently this has become a common problem with many of the ram 6.7L cummins engines. This can lead to poor engine performance and eventually catastrophic engine failure. Currently the repair cost just for the actuator through mopar is $3000. Obviously this is a recurring issue with these trucks, at a substantial cost to the consumer. I began noticing that my engine brake would not engage when descending grades, and then I started...

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getting an intermittent engine light would come on, now it comes on all the time. I had a local parts store look up the engine code for me and it logged a p00af condition. I googled the information and realized that this is a very serious issue that could become a very expensive repair if not addressed in a timely manner. In my opinion, a recall should be issued for this.

Filed Incident EngineNHTSA 11316016
Engine & cooling

Tl* the contact owns a 2015 ram 3500. The contact stated that while driving approximately 65 mph, white smoke started to emerge from the exhaust pipe and the vehicle started to loose power. The check engine warning indicator illuminated. The contact drove the vehicle to the dealer at approximate 10 mph, they determined that the diesel particulate filter had blown inside the exhaust system and needed replacement. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 82,143. The vin was unavailable.

Filed Incident EngineNHTSA 11302859
Transmission & drivetrainEngine & coolingFire

Tl* the contact owns a 2015 ram 3500. The contact stated that while driving at night, an orange glow coming from underneath the vehicle and there was odor of smoke in the cabin. The contact stop in the middle of the road because the vehicle was on fire and was able to exit the vehicle with his wife safe but inhaled a little smoke. Medical attention was not required. The contact noticed under the hood was in flame. The fire department extinguished the fire. A police and fire report was filed. The vehicle was towed...

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to umansky chrysler dodge jeep ram dealer, (960 hilton heights rd, charlottesville, va 22901, (434) 326-0298) where the contact was informed what cause fire, which was a faulty transmission cooling line clip. The transmission fluid ignited the exhaust causing the fire. The vehicle was not repaired. The contact stated that the awaiting on a part to test everything. The vehicle was not repaired. The manufacturer was made aware three times and provided a case number: 71744090-74426250. The failure mileage was approximately 69,200.

Filed Incident Power train · EngineNHTSA 11299235
Transmission & drivetrainEngine & cooling

Tl* the contact owns a 2015 ram 3500. The contact received notification of nhtsa campaign numbers: 17v562000 (engine and engine cooling) and 17v821000 (power train). The part needed to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. Wyatt arp chrysler dodge jeep in seguin, texas and ancira chrysler jeep dodge ram in san antonio, texas were made aware of the recalls and stated that the parts were unavailable. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Filed Incident Power train · EngineNHTSA 11080954
Engine & coolingFire

Vehicle was parked and caught in fire in the engine compartment *tt *cn

Filed Incident Unknown or other · EngineNHTSA 11072283
Transmission & drivetrainEngine & cooling

Tl* the contact owns a 2015 ram 3500. The contact received notification of nhtsa campaign numbers: 17v562000 (engine and engine cooling) and 17v821000 (power train) and stated that the part was not available within a reasonable time frame to schedule the recall repair. The dealer (greenway dodge chrysler jeep ram orlando, 9051 e colonial dr, orlando, fl 32817, (888) 292-3985) was unable to verify when the remedy and parts would be supplied from the manufacturer. The contact was unable to determine when the vehicle...

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would be repaired. The manufacturer was contacted. The contact stated that the service engine indicator illuminated. The failure mileage was not available. Parts distribution disconnect. *Tt updated 10/1/18*jb

Filed Incident Power train · EngineNHTSA 11067419
Engine & coolingFire

My dodge ram truck was the subject of three safety recalls, two of which were completed december 12, 2018. A third safety recall, t25/nhtsa 17v-302, that, at the time of my fire incident, had not been approved by chrysler for the work to be done. The two safety recalls were completed by a dealer approximately 80 miles away from my home. On the day after picking up my truck, the truck's engine compartment had a fire during my 1-mile drive home from work. I observed smoke coming from under the hood, turned off...

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the motor, opened the hood and observed flames. My local fire department responded to the scene, but I had already extinguished the fire. I notified chrysler and they subsequently dispatched an investigator to my home to conduct an evaluation. On january 3, 2018, the investigator met with me and photographed my damaged engine compartment. The investigator had earlier informed me that chrysler would not pay for the tow to a dealership where a proper evaluation could take place. The safety recall indicated that, for my model and year of truck, the water pump could fail and "may" cause a fire in the engine compartment. Today, january 19, 2018, I received a letter from fiat chrysler automobiles informing me that after their inspection of my vehicle, "the information at hand would not permit us to associate the fire with a manufacturing or assembly error..." Their evaluation procedure was haphazard, at best, and handled in a very poor manner. I asked the evaluator about his professional background, and he was not an engineer, or a mechanic. He simply obtained photographs for his report. I do not understand how chrysler could make a reasoned decision in this matter without a proper evaluation by a trained engineer or mechanic. Thank you for your time and consideration. *Bf *tr

Filed Incident EngineNHTSA 11063835
Electrical systemEngine & cooling

Vehicle fails to start in cold weather below 55 degrees. When it is below 55 degrees, the win module will not recognize the key fob and vehicle will not start. I must keep inserting the key fob, turn it off and on, recycle door locks, open and close door. I have brought this to the dealer. No parts available. Brought it to chrysler's attention, no repairs or parts. If I needed to go anywhere in an emergency, it would be impossible. Attaching video of what I go through. Would like to know why chrysler does not have parts nor are they replacing defective parts under warranty. Web site is not allowing me to upload a video of the problem

Filed Incident Electrical system · EngineNHTSA 11058199
Engine & cooling

Manufacturers failed to remedy a recall for the water pump in a timely manner.

Filed Incident EngineNHTSA 11056735
Transmission & drivetrainEngine & cooling

Bought truck new and at 40k mile mark water pump assemby failed while driving on highway at 75 mph towing camper,almost crashed,lost steering & control, truck almost caught fire, was so hot, steeming & smoking , mechanic couldnt touch hood for 45 minutes. Stranded for a week before fixed-now at the 80k mile mark re-call came out for exact problem and now theres no fix available ? Rolling the dice with many lives ! Afraid to drive the vehicle. All my issues documented at chrysler care. I can not believe they are letting people drive this vehicle with no fix ....I need help as well as all who own this vehicle original accident happend 3/2016

Filed Incident Power train · EngineNHTSA 11045092
Engine & cooling

If you let up on the throttle for a traffic issue and press it back down quickly the throttle response goes dead for 1-2 seconds. This a real safety issue in left turns and/or merging into traffic. Aka dead pedal, which is well documented on internet sites associated with ram diesel pickups.

Filed Incident EngineNHTSA 11044385
Engine & coolingFuel system

There is a definite delay in acceleration when pulling out in traffic. Sometimes 2 or 3 seconds or more. Also when driving in traffic if you let up on the accelerator and then resume accelerating it almost feels like the vehicle stalls. Very dangerous.

Filed Incident Engine · Fuel / propulsion systemNHTSA 11043024
Engine & cooling

Tl* the contact owns a 2015 ram 3500. The contact stated that while driving the vehicle, there was an abnormal exhaust odor entering the cabin of the vehicle. The vehicle was taken to lakeshore chrysler jeep dodge jeep ram fiat located at 330 e howze beach rd, slidell, la 70461, (985) 641-9595, and the contact was informed there was a three week back log to have the vehicle diagnosed. The vehicle was not diagnosed. The manufacturer was not contacted or notified of the failure. The approximate failure mileage was 100,000.

Filed Incident Engine and engine coolingNHTSA 11011202
Engine & cooling

Tl* the contact owns a 2015 ram 3500. While driving, the vehicle stalled and the check engine indicator illuminated. The vehicle was taken to the dealer (coast auto center inc. 530 Chetco ave, brookings, or 97415) where it was diagnosed that the degradation of the selective catalytic reduction system needed to be replaced. The vehicle was not repaired. The dealer stated that dodge had not yet manufactured the part. The manufacturer stated that the contact could take the vehicle to the dealer everyday to have it checked, but offered no further assistance. The approximate failure mileage was 20,000.

Filed Incident Engine and engine coolingNHTSA 10991220
Transmission & drivetrainEngine & coolingFuel system

When accelerating (either from a stop or a rolling stop) and then braking and then accelerating again, the engine will hesitate. Some call this "dead pedal" but I feel it's dangerous because it leaves vulnerable in traffic to a collision. It's happened to me numerous times and again today. I was at a 4 way stop and proceeded to accelerate when it was my turn, about 1/3 way into the intersection, a vehicle traffic ignored the stop sign and attempted to cross my line of travel. I had to break and then immediately...

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accelerate and the truck hesitated which left me in the intersection. If the other vehicle had been traveling at a faster rate, it would have t-boned me. As it was, the other driver was able to maneuver his vehicle around me. To me, this isn't a delay in which the turbo spools up to help deliver power. It almost feels like the throttle is dead however the truck is still running. The hesitation can last about a second or so but in that time, I feel the truck is unsafe.

Filed Incident Power train · Engine · Fuel / propulsion systemNHTSA 10984671
Electrical systemBrakesEngine & cooling

Too many details, but will try to bullet right to the issues: (truck was rear ended on highway 4/25/2016) -my truck was towed to dealership, but upon "completed repairs", I picked up at collision center -exhaust brake function on the turbo was weakened while in care of dealerships hands (or lack thereof) -during repairs of body damage only, someone re-calibrated my trucks speedometer to match my oversize tires. (This would be so much a concern, but the fact that my trucks exhaust brake was intentionally...

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weakened via computer, "now we have a problem" -this issue was addressed to dealership as a safety concern as I tow a 16,000lb trailer for work. (Along with noticeable whistle from turbo, which is undeniable evidence of damage to turbo) -first day towing through mountains "without" eb working properly, I almost wreck twice within 15 miles, all due to "weak eb" -after multiple trips to dealer, I am constantly told "truck drives fine, truck eb is working" -enough researching turbo and eb function, I am able to finally get insurance & dealership to repair turbo under claim -after repair, truck is given back to me with new turbo. Eb is still extremely weak, whistle is gone, torque and tow/haul function have now been altered and compromised. -Now we have 3 issues with the truck: extremely weak eb / extremely weak to non-existent tow/haul mode / torque extremely weak. (All functions that can be calibrated in the trucks computer) -dealership has been having my $60,000 truck handled with complete negligence and carelessness with placing repairs in hands of a mechanic with 2 months' experience. -2Nd dealership now, wouldn't listen about computer concerns, replaced my new turbo instead. -Words by second dealership "truck is working as designed". A tow truck that does not have its "tow/haul" engaging is not working as designed. "Accident waiting to happen" *tr

Filed Incident Electrical system · Service brakes · EngineNHTSA 10939130
SuspensionEngine & cooling

My 2015 ram 3500 has gone through 3 wheel alignment within a year 12000 miles. I also been getting a lot of bad fumes in cab where you have to open windows at around 20 to 40 mph or when you start truck while warming up in cold weather. I had wheels rotated and the tpms where reading wrong. It was not connecting with system in truck had to take to dealer to reset.

Filed Incident Suspension · EngineNHTSA 10936561
Transmission & drivetrainAcceleration & cruise controlEngine & cooling

In june 2016, towing a 14 foot light trailer up sonora pass on hwy 108 in california, the truck bucked, studdered and shook in first gear, stalled and slipped backward towards a 1000 foot cliff, it then lunged into gear and it was smoking the tires. I let it do that to gain traction and then slowly made my way back up. I cannot tow anything out of first gear without the bucking and studders, and losing forward momentum, anywhere. Almost lost it all that day including my life and nothing has been done to fix...

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the issue. 2 Dealerships in 2 states acknowledge the problem, state they have other customers that have the same problem but dodge cannot seem to understand a fix or the seriousness of this defect. The truck is not safe to tow anything anywhere and that is obsurd for a ram 3500. This truck is advertised as the number one truck for towing, but it just can't do the job safely. Please view letter sent to dealership dated july 9th. 2016.

Filed Incident Power train · Vehicle speed control · EngineNHTSA 10930188
Transmission & drivetrainAcceleration & cruise controlEngine & cooling

The tuck has a horrible lag in the throttle response. When trying to pull out into heavy traffic the truck lags more than it should. This has been happening since the day I bought it new with 16 miles on it. If you press the pedal more than half down from a stop you can count to 30 before it actually starts moving. There have been multiple times where this has almost caused an accident. I have been reading forums about this issues and have come up with 2 causes. 1 The throttle control programing is set...

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extremely conservative which will cause this. 2 The one that almost everyone is reporting is that the dpf regen system is causing too much back pressure. People are reporting that when they delete the exhaust and egr off the truck it gets its power back. These systems never seem to completely clean out and all wise has high back pressure.

Filed Incident Power train · Vehicle speed control · EngineNHTSA 10926613

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

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