check engine FORD E SERIES 1999 4.G 7.3L Diesel Supplement Manual

IF THE ENGINE RUNS HOT
The following could cause the engine to overheat:
²Lack of coolant.
²Dirty cooling system.
²Driving with frozen coolant.
²Sticking thermostat.
²Overloading or pulling heavy trailers during hot weather.
²Grill or radiator air blockage.
²Slipping or missing drive belt.
²Plugged or very dirty air cleaner element.
IF FUSES BURN OUT
Burned-out or blown fuses usually indicate an electrical short-circuit,
although a fuse may occasionally burn out from vibration. Insert a second
fuse. If this fuse immediately burns out and you cannot locate the cause,
return your vehicle to your dealer for a circuit check.
Replacement fuses and circuit breakers must always be the same
rating as the original equipment shown. Never replace a fuse or
circuit breaker with one of a higher rating. Higher rated fuses or circuit
breakers could allow circuit overloading in the event of a circuit
malfunction, resulting in severe vehicle damage or personal injury.
Refer to the ªOwner Guideº for replacement of fuses.
Minor troubleshooting guide
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