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EnginePart report

2015 Ram Promaster 2500 Engine Problems

Complaints
6about this part
Share
26%of 23 total for the year
Median mileage
72,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine of the 2015 Ram Promaster 2500, 26% of the 23 complaints for this model year. Where a mileage was given, the median is 72,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“The engine needs to get replaced. It blew the gaskets. Headlights stopped working. I took it to the dealer and was told it was the bulbs. Bulbs were switched out and they still didn't work. Sometimes I have to turn the truck off then on again in order to get the transmission to properly work.”

NHTSA complaint #11277036, filed 2019-10, 12,000 miles

“In 2018 we had a major radiator problem, fan, fluid, hoses all blew all over a customers driveway. This was the final straw after being stranded and towed several times to the dealership with only 26k miles on the truck. Finally, raised enough fight and called chrysler/dodge and they opened a case and fixed problem. Here we are in early 2021 and problem is happening again, fan not working, hoses blowing, losing fluid, overheating.... The vb-2 recall is out there but my truck VIN is not included, however, the exact part and problem is in the vehicle, not once but twice. …”

NHTSA complaint #11408149, filed 2021-04, 86,000 miles

“2015 Ram promaster diesel 2500 with 72000 miles. Vehicle was in excellent condition, well maintained, with oil changes per factory recommendations. While driving at highway speeds of 70 -75 MPH, without warning there was a sudden and hard thud in the engine compartment and the vehicle began slowing very rapidly, as if brakes were being applied. I immediately pulled over to the side of the road. As the vehicle slowed and came to a stop, there was significant smoke and steam rising from the engine compartment. I was concerned that the vehicle was on fire, but it was not. …”

NHTSA complaint #11245363, filed 2019-08, 72,000 miles

“Buyer beware I never been treated so badly, this dealership is the worst when I went to pick up one of my vans there was 2 of them in the service dept and I was told that I was able to come to pick one up and this time I was so lucky to get a rental and was told that they were taking the rental back when I arrived even though the still had 1 of my other vans and the service manager he said that I could come into pick up one of the vans and told me to bring the rental in so they can transfer the paperwork over to the other van, so when I get there he was gone for the day and had to deal with…”

NHTSA complaint #11291540, filed 2019-12, 50,000 miles

“Purchased a new 2015 PROMASTER 2500 in 2015 and experience engine problems after 2 years. In 2020 fuel injection and engine cooler fan issues. Each time the light bulbs (headlights) are changed they go out within a few months. I'm scheduled for a few recalls and waiting for the parts to come in for the engine cooler fan and the shift cable. I would never buy a dodge Ram truck again.”

NHTSA complaint #11406092, filed 2021-04

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2015626%

Other parts of the 2015 Ram Promaster 2500

Transmission and drivetrain
11 complaints
Electrical system
5 complaints
Brakes
3 complaints
Exterior lighting
3 complaints
Fuel system
3 complaints
Other or unknown
3 complaints
Suspension
2 complaints
Electronic stability control
1 complaints
Engine cooling
1 complaints
Equipment
1 complaints
Body and structure
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2015 Ram Promaster 2500

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