Fuel system wiring short

Tiny
RLAMASTER
  • 1988 CHEVROLET TRUCK
  • 2WD
  • AUTOMATIC

I have a 1988 c3500 quad cab dually 454 dual tanks. Using tank selector switch blows 10amp ecm2 fuse and I loose fuel pump. Vehicle has dead short and blows ecm2 two fuse each time its replaced. Driver side fuel pump has been replaced twice. Any suggestions

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Wednesday, February 9th, 2011 AT 5:00 AM

1 Reply

Tiny
ERNEST CLARK
  • EXPERT
  • 1,758 POSTS

You'll have to probe the positive side of the fuel pump circuit for a short. Also check the connectors for bent pins inside.

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Friday, February 25th, 2011 AT 2:13 PM

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