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1987 Chevy Blazer fuel pump issue

Tiny
JACKSRWILDER
  • MEMBER
  • 1987 CHEVROLET BLAZER
Electrical problem
1987 Chevy Blazer 6 cyl Four Wheel Drive Automatic 200k miles

Replaced fuel pump 18 mo. Ago, all was fine. Will idle, but when I drive it, maybe 1/2 mile, the ECMB fuse goes, I'm assuming under load? Is there some way to check the problem without removing the tank again? When I do remove the tank, can the pump itself be checked? Who the h. Puts electric in the gas tank!
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Tuesday, December 15th, 2009 AT 4:29 PM

1 Reply

Tiny
SWILLIAMS
  • MECHANIC
  • 597 POSTS
Sounds more like you have a short in the wiring if it only does it while in motion. Easy way to test the pump is to disconnect the wire from the relay and see how many amps the motor is drawing.
Oh and all the makes use an in tank pump.
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Thursday, December 17th, 2009 AT 11:45 PM

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