Question about 1990 Chevrolet C1500

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My '90chevy C1500 turns over but won't fire.

My '90chevy C1500 pick-up turns over but won't fire. my mother was driving at the time,so i don't know EXACTLY how it happened...but a few hundred feet from the driveway the '90 silverado died.(it's a 2WD C1500 Camper Special) it turns over but doesn't fire.(it's fuel injected) it seems to be starved of fuel.please give me some tips to trouble-shoot the fuel system. i have basic mechanical knowledge,but limited to older cars...not fuel injection.but have common sense(which i've found isn't all that common).should i pour alittle gas in the carb and try to start it? or remove the canister(i assume it's the filter) from inside the frame and see if it's clogged? do i blow through it or won't that help? where do i listen for the hum of the fuel pump? any guidance from someone who's been there would be greatly appreciated! thank you! Jeff-drews

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  • jeffrey andrews Jun 18, 2009

    to:crashbob57; thanks for the reply.all the fuses are good. where will i find the relay,and can i just tap into the wires near the gas tank to check for power to the pump?('cause i can't get to the pump in the tank).i didn't hear the hum,but will try the cap idea,thanks. jeff-drews

  • jeffrey andrews Jun 18, 2009

    to:crashbob57;thank you for your input!!! i'm gonna crack a cold one and pick it back up tommorrow.i think you're right,i'm gonna be changing a fuel pump! ha,ha! i just want to exhaust ALL the easy avenues before i face the 'demon'. i'll check the relays in the morning and hope for the best while i prepare for the worst! thanks again,my friend! jeff



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Hmm, first check the fuse for the fuel pump, then check to see if you have power to the relay, then back at the fuel pump. Turn the key on, see if ya hear a short humm or buzz when ya cycle the key on and off, sometimes you can hear it better with the gas tank cap off. More than likely its the fuel pump in the tank, very common

Posted on Jun 18, 2009

  • Bob Soike Jun 18, 2009

    Hey Jeff, hmm, if I remember right, the relays are on the firewall. it is a black square box an inch and a half square. I have had a liitle luck getting someone home by tapping on the gas tank with a two by four, it seems to jar the pump enough to get it spinning again, but it is still bad and needs replaced, the tapping just makes it make contact again for awhile. The Bosch relays are much better than the pumps, my moneys on the pump!



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