1991 Chevy S-10 fuell

1991 CHEVROLET S-10
124,000 MILES • 4 CYL • 2WD • MANUAL
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CATHY4236
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  • 3 POSTS
put new fuel pump and sending unit in changed fuel reg. now not getting power check wires and fuses check with light tester and its low light
Mar 27, 2008 at 3:01 PM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
are you checking the gray wire? this should have a BRIGHT LIGHT WHEN CRANKING OR FOR 2 SECONDS WHEN THE KEY IS TURNED ON.
Mar 27, 2008 at 3:23 PM
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CATHY4236
  • MEMBER
  • 3 POSTS
yes checking gray wire the key is on and the test light is dim
Mar 27, 2008 at 3:47 PM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
check the fuel pump relay connection, if ok check voltage at the relay and see if it is dim. disconnect the relay and key on engine off check for voltage, it should be bright.
Mar 27, 2008 at 3:57 PM
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CATHY4236
  • MEMBER
  • 3 POSTS
it was the computer
Apr 1, 2008 at 10:32 PM
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