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What 6 owners told NHTSA about the 2019 Ram 4500

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (6)Engine (2)Fuel system (2)Fuel System, Diesel (1)Steering (1)Transmission & drivetrain (1)Wheels (1)

2 of 6 complaints match · Engine · clear filters

Feb 22, 2021Engine

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 ODI 11397469

Nov 28, 2020Engine

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. ALL DOCUMENTATION AVAILABLE THROUGH FCA CUSTOMER CARE CASE 76826889 AND ALSO [XXX] | CASE 76201975 REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ODI 11376793

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 12, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 Ram 4500 verdict →