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I would like to know if there is a way to test the fuel pump relay on my truck

Tiny
KRUZINBOOTZ
  • MEMBER
  • 1993 GMC SIERRA
  • 425 MILES
I have changed the fuel filter on my truck, still having trouble, would like to see about testing fuel pump relay before dropping the gas tank
Saturday, November 5th, 2011 AT 6:16 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
First, check to see if there is power to the relay, both in and out. You should have 12v both in and out.
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Saturday, November 5th, 2011 AT 6:18 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
IF THERE'S ANOTHER ONE EXACTLY LIKE IT IN YOUR RIG

SWAP 'EM SEE IF THE OTHER SYSTEM WORKS

THE MEDIC
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Sunday, November 6th, 2011 AT 4:38 AM

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