Ignition coil fuse blowing

Tiny
PEWEE
  • MEMBER
  • 1993 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 88,075 MILES
I unpluged ignition control module and the electrical plug to the coil replaced fuse and turned key to the on position the fuse blew instantly.
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Tuesday, July 12th, 2011 AT 6:00 PM

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Tiny
CARADIODOC
  • MECHANIC
  • 33,689 POSTS
A simple trick to finding a short is to replace the blown fuse with a pair of spade terminals, then use small jumper wires to connect them to a 12 volt light bulb. A brake light bulb works well. When the circuit is live and the short is present, the bulb will be full brightness and hot so be sure it's not laying on the carpet or against a plastic door panel. Now you can unplug electrical connectors and move things around to see what makes the short go away. When it does, the bulb will get dim or go out.
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Tuesday, July 12th, 2011 AT 6:22 PM

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