F 350 2WD Pickup V8-460 7.5L VIN G EFI (1997)
Malfunction Indicator Lamp: Description and Operation
Check Engine (MIL)
The check engine warning indicator comes on when the electronic engine control system is not working properly.
The CHECK ENGINE warning indicator comes on briefly when the key is turned to RUN, and should turn off when the engine starts. If the CHECK
ENGINE warning indicator does not come on when the key is turned to RUN or if it comes on while the vehicle is moving, the system is
malfunctioning.
NOTE: If the vehicle is equipped with dual fuel tanks, the CHECK ENGINE light may come on if fuel is restricted to the engine or if the fuel flow is
momentarily disrupted because of an empty fuel tank before switching to the auxiliary fuel tank. This condition is normal and the CHECK ENGINE
light should go off sometime after fuel flow is restored.
