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When altenator starts charging it blows fuse to ignition coil on 1986 isuzu pick

(1990 Isuzu Pickup)
in Maysville, GA on July 31, 2012
is it short on coil side of fuse? runs fine if unpluged altenator. then blows when alternator is pluged back in. the two little wires out of back of alternator.
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Popular Answer
on August 01, 2012
Have the alternator 'bench tested' for internal problems.While the alt. is out of the vehicle check the wiring for proper continuity(may want to have a wiring diagram and system description...not all cars charging systems are the same)
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