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Why do Ram diesel engines keep getting stall and fire recalls?
Ram's engine recalls split cleanly by engine. The 3.0L EcoDiesel Ram 1500 and 1500 Classic, roughly 2014-2019, appears twice for a crankshaft position sensor tone wheel that delaminates and stalls the truck — recalled in 2020, then again in 2023 alongside 3.0L Jeep Grand Cherokees — and once for an EGR cooler that cracks and lets vaporized coolant combust in the intake manifold. Cummins 6.7L High Output 2019-2020 Ram 3500, 4500 and 5500 cab chassis were recalled twice on the same theme: calibration software that neither protected the connecting rod bearings during warm-up nor warned of low oil volume. Add a 2022 heavy-duty ECM capacitor short and a 2018-2026 ProMaster radiator fan circuit that can overheat.
Warning signs to watch for
- Engine stalls while you are driving, or loses power intermittently
- Burning smell or smoke from the engine bay
- Coolant loss or an overheating warning on a 3.0L EcoDiesel
- On Cummins High Output cab chassis, no low-oil warning even when oil volume is low
- Engine noise or rough running after cold starts before the engine warms up
Is it safe to keep driving?
None of these seven recalls tells owners to stop driving or to park outside — including the fire-related ones: the EcoDiesel EGR cooler, the ProMaster radiator fan circuit, and the Cummins High Output bearing damage that can leak oil onto hot parts. The stalling recalls, both the tone wheel and the 2022 ECM short, also allow continued driving, but a stall in traffic is a genuine crash risk, so drive the truck to the dealer rather than postponing. Do not ignore burning smells, overheating warnings or a sudden loss of power while you wait.
What the free repair involves
Most fixes are software: dealers flash the powertrain module so the engine keeps running off the camshaft signal, and reflash engine calibration for Cummins warm-up protection and the low-oil warning. Hardware recalls replace the EGR cooler and, if needed, the intake manifold; replace the 2022 engine control module; and replace the ProMaster cooling fan module and fuse with a manual addendum and fuse-box label. All free of charge.
Severity at a glance
| Severity | Recalls |
|---|---|
| critical | 4 |
| high | 3 |
Models affected most
Every recall in this group
| Date | Recall | Severity |
|---|---|---|
| 2025-10-23 | Ram ProMaster radiator fan wiring can overheat and catch fire | critical |
| 2023-06-08 | Ram 1500 and Jeep Grand Cherokee diesels can stall | high |
| 2022-08-26 | Ram heavy-duty diesel trucks can lose engine power | high |
| 2021-06-10 | Ram 3500, 4500 and 5500 may miss low-oil warning | critical |
| 2020-08-27 | Ram 3500, 4500, 5500 diesel engine damage, fire risk | critical |
| 2020-08-13 | Ram 1500 diesel sensor ring may cause engine stall | high |
| 2019-10-24 | Ram 1500 EcoDiesel EGR Cooler May Crack, Catch Fire | critical |
Common questions
Why did my EcoDiesel get two separate stall recalls?
The 2020 recall reprogrammed the powertrain control module on 2014-2018 Ram 1500s so the engine keeps running off the camshaft signal if the crankshaft signal is lost. The 2023 recall applied that same software fix to a wider 2014-2019 Ram 1500 and 2014-2020 Grand Cherokee population.
Does the radiator fan recall cover gasoline ProMasters too?
The 2025 recall covers 2018-2026 Ram ProMaster vehicles broadly, with dealers replacing the cooling fan module and fuse. A separate 2019 equipment recall covered 2015-2018 ProMasters with 3.0L diesel or 3.6L gasoline engines and air conditioning for a seizing fan.
I never got a low-oil warning — could my engine already be damaged?
It is possible. On 2019-2020 Ram 3500, 4500 and 5500 cab chassis with the Cummins 6.7L High Output, the calibration may not warn about low oil volume, and poor warm-up protection can damage connecting rod bearings. Raise any engine noise with your dealer.
A recall applies only to specific vehicles. Check your 17-character VIN at nhtsa.gov/recalls.