2018 RAM 3500 engine problems
15 owner complaints filed with NHTSA name the engine on the 2018 RAM 3500 — 2% of all complaints for this model year.
What owners report
“Recall C4B with known issue and known remedy but “no parts available.” Contacted RAM and with no parts they have no solution. You can rent an auto out of pocket and possibly be reimbursed. No option for buyback or solution. Recall came out 12/5/2024.”
filed Dec 29, 2025
“On May 3, 2025, while driving my 2018 RAM 2500 with approximately 46,000 miles, the check engine light came on and the engine immediately experienced a significant loss of power. The vehicle entered a limp mode condition, drastically reducing speed and acceleration. I was forced to pull into a…”
filed May 9, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Sensor - turbocharger speed
113744 · Service Bulletin/Repair Instructions · issued Jul 29, 2026Bearing - crankshaft thrust and kit
112906 · Service Bulletin/Repair Instructions · issued Jun 17, 2026Bearing - crankshaft thrust and kit
112906 · Service Bulletin/Repair Instructions · issued Jun 17, 2026
Engine problems in other 3500 years
| Year | Reports | Share |
|---|---|---|
| 2026 3500 | 2 | 9% |
| 2025 3500 | 1 | 3% |
| 2024 3500 | 5 | 13% |
| 2022 3500 | 23 | 12% |
| 2021 3500 | 10 | 16% |
| 2020 3500 | 25 | 22% |
| 2019 3500 | 21 | 16% |
| 2017 3500 | 28 | 9% |
| 2016 3500 | 21 | 16% |
| 2015 3500 | 27 | 20% |
| 2014 3500 | 29 | 14% |
| 2013 3500 | 27 | 24% |
Other reported problem areas on the 2018 RAM 3500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.