1993 GMC VAN BLOWING FUSES ALL THE TIME

  • Tiny
  • grog247
  • 1993 GMC Van
  • 300 miles

Fuel pump fuse blows when you shut down. Replace fuse it runs. Turn off. Blown fuse. This is with a new battery and starter. It's a recently purchased piece and was told it had an illusive "short" somewhere. We have isolated most of the "custom" lighting etc. Ran for a month before this. Battery was cooked, starter brushes were worn past the clips. Help !

Wednesday, May 2nd, 2012 AT 11:22 PM

5 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Disconnect the fuel pump and repeat it. Does the fuse still blow.

Roy

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Wednesday, May 2nd, 2012 AT 11:27 PM
  • Tiny
  • grog247
  • Member

Disconnected fuel pump at inline connector near tank. Cranked it over. NO BLOWN FUSE.

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Monday, May 7th, 2012 AT 1:15 AM
  • Tiny
  • grog247
  • Member

Is it the fuel pump? And or the guage sending unit?

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Monday, May 7th, 2012 AT 11:54 PM
  • Tiny
  • grog247
  • Member

Going to try to fish harness out of frame cavity to search for chaffing first before dropping tank.

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Tuesday, May 8th, 2012 AT 5:56 PM
  • Tiny
  • grog247
  • Member

ASEMaster637. Are we on the right track?

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Wednesday, May 9th, 2012 AT 8:11 PM

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