Question about GMC Sierra 1500

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98 GMC TRUCK DOSE NOT HAVE GAS CHANGED RELAY CAN'T HEAR PUMP

IS THERE ANOTHER FUSE?

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  • scooterg822 Feb 15, 2009

    changed relay in fuse box under hood.Took air cleaner hose off sprayed starting fluid down it,started then died

  • Dennis Mulford
    Dennis Mulford May 11, 2010

    need more info

  • Todd Bradshaw
    Todd Bradshaw May 11, 2010

    what do mean when you say gas changed relay ?

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Hello there is a fuse also in the fuse box and there is a relay driver side under fuel tank area !98 GMC TRUCK DOSE NOT HAVE GAS CHANGED RELAY CAN'T - 78402599

Posted on Feb 15, 2009

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fuel pump, or fuel punp relay mounted on fire wall, check the fuse in relay, also check the ground wire from fuel pump (in tank) to the inlet pipe , under the truck, where you put gas in, fuel pump needs a good ground period. fuel pump could be on its last leg ! reason why I know this is cause I have a 1988 gmc 3/4 ton. to access fuel pump, I cut an access opening in truck bed, 12" square above tank at location of pump. better than dropping tank, besides the truck is how old ? makes a hard job easy. change your fuel filter also. good luck, ken

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You would need to disconnect the harness at the pump and see if the fuse still blows.

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93 gmc sierra 5.7 liter engine, injection carb, will turn over won't start, replaced fuel pump fuse, replaced fuel pump relay, replaced fuel pump inside gas tank, no gas flow to carb , gas gauge has always...


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Have a 98 gmc 5.7 truck have to prime to start truck.


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