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EnginePart report

2019 Ram 4500 Engine Problems

Complaints
2about this part
Share
33%of 6 total for the year
Median mileage
22,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine of the 2019 Ram 4500, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 22,000 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.

“At only 15000 miles and 6 months of life, my truck is leaking oil/fuel from the cp4 fuel pump. The oil/diesel is leaking on the engine block and other nearby hot components which I assume could be a fire hazard or a fuel system disaster failure. The system is leaking all the time while engine is working”

NHTSA complaint #11397469, filed 2021-02, 15,000 miles

“Ist time, approx. 29,000 miles, with no warning, vehicle ran poorly, rough and died. Stranded on side of road for 4 hours until a tow truck came. Diagnosed as high pressure fuel pump failure. Second time, approx 39,000 miles, same issue of stalling, except this time I was stuck in the middle of the desert with 114 degree temp for 8 hrs. Before a tow. Same diagnosis, high pressure pump failure. …”

NHTSA complaint #11376793, filed 2020-11, 29,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2019233%
2015114%
2014563%

Other parts of the 2019 Ram 4500

Fuel system
3 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints
Wheels
1 complaints

← All problems reported for the 2019 Ram 4500

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