1992 GMC Sierra XC, 5.7, K2500 fuel troubles.

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Old 07-19-2018, 10:52 AM
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Default 1992 GMC Sierra XC, 5.7, K2500 fuel troubles.

I recently acquired a 92 Sierra XC, sitting for a couple of years. Boby too solid to send it to the crusher, would like to get it back on the highway. Started and ran rough with a jump when I towed it home, drained old gas, replaced fuel filter and put fresh rizz in, fired up and ran. Rich albeit, test drive attempt ended with a tow home. No fuel! No power at fuel pump fuse, powered up fuse, jumped relay no fuel! I'ma gonna go nuts! Please help!
1992 GMC Sierra XC, 5.7, K2500, 198kmi
 
  #2  
Old 07-28-2018, 10:18 PM
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Oil pressure switch on back of motor behind distributor can cut power to fuel pump if it doesnt register any oil pressure... when u turn the key on do u hear the pump priming up? Also relay on firewall under black box are notorious for going bad or connections being corroded. If all else fails go to your tank and check for power at the plug to the pump..
 
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