Component
FUEL SYSTEM, DIESEL: PRE-HEATER
12 NHTSA complaints about fuel system, diesel: pre-heater issues across 4 makes and 5 models.
The fuel system, diesel: pre-heater is one of the standardized component categories NHTSA uses to classify consumer safety complaints. Across the public complaint database, it accounts for 12 filings from 4 manufacturers and 5 distinct vehicle models, a footprint large enough that defect engineers can isolate part-family patterns across different platforms that share the same supplier or the same federal motor vehicle safety standard.
Among filings citing this component, owners have reported 0 crashes, 2 fires, 0 injuries, and 0 fatalities. The most complained-about vehicle in this category is the JEEP LIBERTY with 7 filings, followed by FORD F-250 and LAND ROVER RANGE ROVER. These severity counters are what separates a nuisance complaint trend from a pattern NHTSA is likely to escalate into a Preliminary Evaluation.
Component-level analysis is how the Office of Defects Investigation spots cross-manufacturer supplier issues — the same airbag inflator, the same takata-style ignition switch, the same brake hose material — before they become industry-wide recalls. When you see a single component accumulating large complaint volume across several unrelated nameplates, that is usually a signature of a shared supplier or a shared federal standard being stressed by real-world conditions. Use the affected-vehicles table below to see whether the pattern is concentrated on a handful of models or distributed evenly, and cross-reference each model's full recall and investigation history before drawing conclusions about any one nameplate.
Most Affected Vehicles
| # | Vehicle | Complaints |
|---|---|---|
| 1 | JEEP LIBERTY | 7 |
| 2 | FORD F-250 | 2 |
| 3 | LAND ROVER RANGE ROVER | 1 |
| 4 | JEEP GRAND CHEROKEE | 1 |
| 5 | GMC SIERRA 2500 | 1 |
Recent Complaints
The contact owns a 2012 Ford F-250. The contact stated that while driving at various speeds over 50 MPH, the vehicle shifted into LIMP Mode. No warning lights were illuminated. The vehicle was taken t
The contact owned a 2017 Land Rover Range Rover. The contact stated while the vehicle was parked in the driveway, there was an odor coming from the vehicle. The vehicle then exploded and caught on fir
The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while getting a routine oil change shortly after, the warning light for a throttle box illuminated. The contact stated that in the
The DEF fluid heater has failed. This can cause failure or DEF delivery to the system at lower outdoor temperatures. This component has already been subject to a NHTSA recall in earlier year models of
WHILE REPLACING THE FUEL INJECTORS UNDER A SPECIAL INJECTOR WARRANTY, THE DEALERSHIP BROKE A GLOWPLUG OFF AND CALLED TO SAY I NEED TO REPLACE THE CYLINDER HEAD AT MY COST. CALL GMC CUSTOMER SUPPORT W
2005 LIBERTY CRD DIESEL FUEL HEATER ELEMENT IS CLEARLY A FIRE HAZARD. I SEE THE INVESTIGATION PE07041 HAS BEEN CLOSED. THIS IS AN ERROR, I HAVE SEEN ON THE FORUMS MANY PEOPLE WITH THE SAME PROBLEM. AL
THE FUEL FILTER HEAD UNIT ON MY 2005 JEEP LIBERTY CRD DIESEL HAS A DEFECTIVE DESIGN. IT IS A WELL DOCUMENTED ISSUE WITH OWNERS OF THESE VEHICLES. THE FUEL HEATER IN THE FILTER HEAD APPEARS TO OVERHEAT
I HAVE A 2005 JEEP LIBERTY CRD. THE HEATING ELEMENT AND PLUG IN THE FUEL FILTER ASSEMBLY IN MY FUEL SYSTEM IS SCORCHED AND SHOWS SIGNS OF BURNING. THE FUEL PRE HEATER COMES IN CONTACT WITH AIR AND
FUEL FILTER HEAD UNIT HEATER ELECTRICAL CONNECTION LEAKS CAUSING SMOKE AND POSSIBLE FIRE. *TR
I HAVE A 05 JEEP LIBERTY CRD AND THE HEATER ELEMENT IN THE FUEL FILTER IS LEAKING FUEL FROM THE PLUG AND THE PLUG IS BURNT UP WORRIED ABOUT IT CATCHING FIRE LIKE SOMEOTHER CRD LIBERTYS HAVE ..WILL BE
TODAY MY 2006 JEEP LIBERTY DIESEL WOULD NOT START. I DISCOVERED THAT THE FUEL FILTER HAD LOST PRIME AND THERE WAS DIESEL FUEL LEAKING FROM THE HEATER PLUG CONNECTOR THAT IS CONNECTED TO THE FUEL FILT
LEAK FROM FUEL HEATER ELECTRICAL CONNECTION CAUSED VEHICLE TO STOP OPERATING. WHEN THE SYSTEM IS PRIMED FUEL IS SPRAYED INTO THE ENGINE COMPARTMENT. I TALKED TO CHRYSLER AND THEY SAID THIS WAS NOT
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Frequently Asked Questions
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Data Sources
Vehicle complaint data from the National Highway Traffic Safety Administration (NHTSA) complaints database. Includes consumer-reported safety issues filed with NHTSA Office of Defects Investigation. Severity counts cross-reference NHTSA FARS (Fatality Analysis Reporting System) for fatal incidents where a corresponding FARS record exists.
Component categories are standardized by NHTSA. Crash-test ratings where shown are drawn from the NHTSA New Car Assessment Program (NCAP). Complaint counts, crash reports, fire reports, and fatality data reflect consumer-submitted reports and may not represent all incidents.
Disclaimer: This data is for informational purposes only and should not be used as the sole basis for vehicle purchase decisions. NHTSA complaint data is self-reported by consumers and has not been verified or investigated. A high complaint count does not necessarily indicate a defect. Always consult a qualified mechanic and check official NHTSA recall notices before making safety-related decisions.
Read our methodology — how this data is sourced, computed, and verified.