Ignition fuse

2004 FORD EXPLORER
180,000 MILES • 4.0L • 6 CYL • 2WD • AUTOMATIC
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WESLEY YATES
  • MEMBER
  • 2 POSTS
My ignition fuse keeps blowing everytime i try to start. Ive searched for burnt or broken wires cant find any. Can the solinoid b causing a short causing the fuse to blow. Any sugestion would b great
Jan 13, 2016 at 9:35 AM
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CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
A trick to narrowing this down is to replace the blown fuse with a light bulb. Insert a pair of spade terminals in place of the fuse, then use a pair of small jumper wires to connect those to a brake light bulb. The bulb will limit current flow to a safe value of around one amp. When the circuit is turned on and the short is present, the bulb will be full brightness and hot so don't let it sit on carpeting or against a plastic door panel. Now you can unplug things and move wiring harnesses around to see what makes the short go away. When it does the bulb will get dim or go out.
Jan 13, 2016 at 3:15 PM
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