Mechanics

FORD F-250 SPARK PROBLEM

1986 Ford F-250 • 15,000 miles

Truck will start every time but only runs 8-10 mins. Cant start again for hours. Replaced alternator, dist. Cap and rotor and ignition command module. Still same result. Also have omni 2000 diagnostic device but cant find plug under hood anywhere. Help please.

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Guest
January 4, 2013.



When it doesn't start, check fuel pressure to make sure it is within spec and check spark to see if it is a good hot blue snapping spark.