2012 Dodge Ram 3500 fuel system, diesel problems
10 owner complaints filed with NHTSA name the fuel system, diesel on the 2012 Dodge Ram 3500 — 3% of all complaints for this model year.
What owners report
“The contact owns a 2012 Ram 3500. The contact stated that while that while the vehicle was in for service, the independent mechanic discovered fuel leaking from the fuel filter heater assembly. The contact was advised that the fuel filter heater assembly needed to be replaced. The vehicle was not…”
filed Mar 11, 2025
“Tl* the contact owns a 2012 ram 3500. The contact received notification of nhtsa campaign numbers: 14v635000 (engine and engine cooling, fuel system, diesel), 15v459000 (air bags), and 17v821000 (power train). The contact stated that the parts were not available within a reasonable time frame to…”
filed Feb 21, 2018
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- In the affected vehicles, the electrical connectors of the diesel fuel heater may overheatCampaign 14V635000 · Oct 8, 2014
Fuel System, Diesel problems in other Ram 3500 years
| Year | Reports | Share |
|---|---|---|
| 2011 Ram 3500 | 5 | 2% |
| 2010 Ram 3500 | 7 | 5% |
| 2008 Ram 3500 | 1 | 1% |
| 2007 Ram 3500 | 5 | 2% |
| 2006 Ram 3500 | 8 | 3% |
| 2005 Ram 3500 | 5 | 3% |
| 2004 Ram 3500 | 5 | 2% |
| 2003 Ram 3500 | 5 | 2% |
| 2002 Ram 3500 | 4 | 9% |
| 2001 Ram 3500 | 8 | 6% |
| 2000 Ram 3500 | 2 | 3% |
| 1999 Ram 3500 | 5 | 5% |
Other reported problem areas on the 2012 Dodge 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.