1989 Lincoln Town Car electrical

Tiny
V ROCK
  • MEMBER
  • 1989 LINCOLN TOWN CAR
  • 5.0L
  • V8
  • RWD
  • AUTOMATIC
  • 124,000 MILES
My tail lights are not working and when the fuse is replaced it pops the fuse I cant find no shorts in wiring replaced head light switch and it is the same.
Thursday, August 28th, 2014 AT 11:24 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 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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Thursday, August 28th, 2014 AT 11:47 PM

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