NHTSA Complaint #11718938 — 2021 FORD F-150

The vehicle is experiencing a chronic, documented loss of engine coolant with no external leaks identified, accompanied by a persistent odor of burning coolant. Despite nine months of notification and two separate Ford authorized dealerships attempting repairs, the defect remains unresolved. To date, dealerships have performed only 'surface-level' pressure and dye tests. They have refused to perform thorough diagnostics despite the clear evidence of consumption. This creates a severe safety hazard: coolant loss on this engine platform is a known precursor to sudden engine stall and potential engine fire. By failing to identify the internal leak path, Ford is requiring me to operate a vehicle with an unpredictable mechanical deficit. The absence of a Warning Lamp (CEL) does not mitigate the risk; it confirms a mechanical failure that the current onboard diagnostics are failing to capture before a catastrophic event occurs.