NHTSA complaint: 2018 FORD F-450 — ENGINE
incidents Summary: The vehicle experienced a significant engine compartment fire while in operation. The fire originated in the engine valley near the secondary fuel filter, consistent with the failure mode described in NHTSA Investigation PE24014. 1. Component Failure & Part Numbers: The fire necessitated an $18,000 repair (RO #443426). Based on the repair invoice, the following safety-critical components were heat-destroyed and replaced: Secondary Fuel Filter (PC3Z9N184C) Main Engine Wiring Harness (HC3Z12B637A) Inlet Manifold (GC4Z9424A) High-Pressure Fuel Pipes (HC3Z9J280J and BC3Z9E964A) Cowl Grilles (HC3Z25022A68AB/69AC) 2. Safety Risk & Pre-Existing Symptoms: Prior to the fire, the engine exhibited a "surging" idle and erratic RPM behavior, which was reported to the dealer. After the replacement of the aforementioned fuel and electrical components, the surging issue was immediately resolved, confirming the original symptom was a precursor to the fuel system failure. While no injuries occurred, the fire presented an immediate risk of occupant injury and total vehicle loss. 3. Disposal of Evidence (Spoliation): Despite an active liability dispute and an ongoing manufacturer investigation, the dealership (AutoNation Ford Valencia) admitted in writing that they disposed of the failed secondary fuel filter and the main wiring harness. These primary pieces of evidence are currently unavailable for federal or forensic inspection due to the dealer's actions. 4. Confir
National Highway Traffic Safety Administration — Office of Defects Investigation