Question about 1997 Chevrolet K1500

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Fuel pump won't engage...getting 7 volts

1997 Checy 1500 4x4...I have replaced the fuel pump relay, fuel pump & sender harness...all of the fuses seem to be ok...still only gets 7 volts & tries to turn over but will not...please help.

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  • jon103a Dec 31, 2008

    you say you have 7volts at the pump, you need to figure out why, you need to work back along the supply wire and find out where your go from 12volt to the 7 volts you have with your multi meter. also check the earth wire and use a good earth on your meter. always test the volts under load- ie pump running to get an accurate reading. jon

  • ChrisWH Jan 28, 2009

    2001 taurus fuel pump good, inertia switch good, fuel pump relay is new. fuel pump does not power at all times checked wiring all the way back to the steering collum. have also noticed that when the key is cycled several time the door locks lock and then unlock occasionallyh the fuel pump will then energize.

  • jon103a May 11, 2010

    just re-read and you say tries to turn over but wont, i take it you have good battery voltage. jon

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Yeah they all sound the same, you have a short somewhere along the line thats affecting the fuel pump. If you've already done the harness, its probably somewhere else along the line. If your having problems with other systems check through them first, like the guy with the door locks too, probably means its shorting out through there. Pain in the **** with the test light and all, but cheaper than a new fuel pump and harness. Hope this helps.

Posted on Feb 11, 2009

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  • Below is the diagram for the fuel pump fuse.


10_28_2011_4_40_21_am.jpg

  • Make sure to check the harness for continuity as well.

  • Hope this helps.

Regards,Tony

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