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1986 GMC C1500 20 Fuse blows when headlight switch is on

Tiny
ALEX6106
  • MEMBER
  • 1986 GMC C1500
  • V8
  • 2WD
  • AUTOMATIC
  • 103,000 MILES
My fuse keeps blowing everytime I turn on the headlight switch at night. Ive replaced it with a higher 25 fuse and even a 30 the 25 pops and the 30 just gets hot and the lights do not turn on. I also replaced the headlight swtich and that didnt solve the problem. Is it a possibility that it could be the aftermarket radio I installed. Would it matter that I did a tuneup afew days ago? Im clueless I need help.
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Monday, February 15th, 2010 AT 7:47 PM

1 Reply

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
When you replace the headlight switch did you check the loom? I had the same problem on my truck and the wire were melted together, remove the headlight switch and checked the wires.
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Wednesday, February 17th, 2010 AT 9:58 PM

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