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EnginePart report

2015 Ram 3500 Engine Problems

Complaints
28about this part
Share
20%of 137 total for the year
Median mileage
31,500miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 28 complaints about the engine of the 2015 Ram 3500, 20% of the 137 complaints for this model year. Where a mileage was given, the median is 31,500 miles. 3 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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.”

NHTSA complaint #10936561, filed 2016-12, 10,000 miles

“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 the issue. …”

NHTSA complaint #10930188, filed 2016-12, 15,000 miles

“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 the motor, opened the hood and observed flames. …”

NHTSA complaint #11063835, filed 2018-01, 110,000 miles

“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 getting an intermittent engine light would come on, now it comes on all the time. …”

NHTSA complaint #11316016, filed 2020-03, 69,000 miles

“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 extremely conservative which will cause this. …”

NHTSA complaint #10926613, filed 2016-11, 26,500 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2026311%
202537%
2024613%
2023318%
20222312%
20211016%
20202723%
20192216%
2018152%
2017289%
20162116%
20152820%
20142914%
20132723%
2007117%

Other parts of the 2015 Ram 3500

Transmission and drivetrain
32 complaints
Brakes
24 complaints
Steering
22 complaints
Electrical system
19 complaints
Suspension
17 complaints
Other or unknown
15 complaints
Wheels
15 complaints
Fuel system
6 complaints
Vehicle speed control
6 complaints
Air bags
4 complaints
Engine cooling
3 complaints
Equipment
3 complaints

← All problems reported for the 2015 Ram 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology