2018 Ram 4500 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 11%of 9 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2018 Ram 4500, 11% of the 9 complaints for this model year.
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 contact owns a 2018 Ram 4500. The contact stated that while driving 40 MPH, the check engine warning light and other unknown warning lights were illuminated, before the vehicle lost motive power. The vehicle was taken to a dealer, where it was diagnosed that the turbo had failed, and there were 39 diagnostic trouble codes retrieved. The dealer determined that the turbo, the intake manifold sensor, the exhaust pressure sensors, and other unknown parts needed to be replaced. The vehicle was repaired; however, the failure reoccurred four months later. …”
NHTSA complaint #11669720, filed 2025-06Related service bulletins
- 10242795Jul 12, 20236.7L New Oil Usage Information Incorrect oil used. This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2023 to 2013 HD…
- 10239957May 18, 2023Water Quality When Mixed With Engine Coolant
- 10236933Apr 15, 2023wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
- 10229454Aug 8, 2022COOLER - EGR
- 10227983Apr 2, 2022If a Mopar oil filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils.
- 10229059Mar 17, 2022No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
- 10220688Mar 6, 2022Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
- 10212291Mar 6, 2022Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
- 10230180Jul 6, 2021Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
- 10221594Jul 6, 2021Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2018 | 1 | 11% |
Other parts of the 2018 Ram 4500
8 complaintsForward collision avoidance
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsWheels
1 complaints
← All problems reported for the 2018 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