2012 Dodge Ram 3500 Fuel System Problems
NHTSA lists 40 Fuel System complaints for the 2012 Dodge Ram 3500, 11% of all 366 complaints for the year, with a median failure mileage of 125,950. One complaint involved a fire, none involved a crash or injury, and no related recall is linked in this data set, though owners reference a diesel fuel heater campaign (14V635000) in their narratives.
- Fuel System complaints
- 40
- 11% of 366
- Crashes reported
- 0
- Fires reported
- 1
- Injuries reported
- 0
- Median mileage
- 125,950 mi
- Related recalls
- 0
Typical fuel system symptoms owners report
- Loss of power and reduced top speed, sometimes limited to around 40-45 mph, while towing a trailer.
- Check engine light illuminates along with a fuel rail pressure code, followed by stalling during highway towing.
- Repeated replacement of the fuel pump, fuel filter, and pressure relief valve without resolving the acceleration loss.
- Owners report the diesel fuel heater electrical connector recall repair (campaign 14V635000) had no parts available for months, leaving trucks unrepaired.
- A fuel leak risk tied to the fuel heater connector was flagged by owners as a fire hazard while waiting on recall parts.
- One vehicle caught fire while parked, later attributed by the fire department to an electrical source under the hood.
When 2012 Dodge Ram 3500 fuel system complaints were filed
First complaint Dec 7, 2013, latest Sep 4, 2026.
Fuel System recalls for the 2012 Dodge Ram 3500
No safety recalls on record for this model year.
Fuel System complaints by Ram 3500 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How common are fuel system complaints on the 2012 Dodge Ram 3500?
- NHTSA lists 40 Fuel System complaints for the 2012 Ram 3500, which is 11% of the 366 total complaints filed for that model year.
- At what mileage do fuel system problems typically show up?
- The median mileage at failure for Fuel System complaints on this year is 125,950 miles.
- Is there a recall for the 2012 Ram 3500 fuel system?
- This data set does not show a related recall entry, but multiple owner complaints reference NHTSA campaign 14V635000, covering the diesel fuel heater and fuel system, and describe long waits for repair parts.
- Did any fuel system issues cause fires or crashes?
- Among the sampled complaints, one incident involved a fire and none involved a crash or injury.
- How does 2012 compare to other Ram 3500 years for fuel system complaints?
- The 2012 model year had 40 Fuel System complaints (11% share), compared with 18 complaints (12% share) in 2010 and 16 complaints (7% share) in 2011.