Question about 1993 Chevrolet S-10 Blazer

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1991 chevy s10 blazer

I have a 1991 chevy s10 blazer 2door 4x4 that the fuel pump stopped working. I have replaced the fuel pump and it still will not start. I replaced the relay as well and still no luck. Can you advise me as to what else it can be. thanks

Posted by kchristie41 on

  • 5 more comments 
  • kchristie41 Nov 04, 2008

    fues and fule filter ok I am not getting power to the fuel pump,also ground wire looks ok.What els do you think it could be? Thanks for the help

  • kchristie41 Nov 11, 2008

    stll not getting power back to the fuel pump.could it be something to do with the ecm? I checked fues and relay both are working.I sprayed starter fluid into the fuel injection it starts then stalls out.What els could it be.Thanks for any help

  • Anonymous Mar 01, 2009

    1993 blazer, checked fuel pressure from pump will start if primed, vortec motor and will continue to run, but then will not start again without a prime to the throttle body

  • Kody Gould Nov 09, 2012

    Were you able to figure out what the problem was? I have the exact same problem with my 91 chevy s10 blazer.

  • Kody Gould Nov 09, 2012

    Were you ever able to figure out the problem? I have the exact same problem with my 91 chevy s10 blazer.

  • Anonymous Mar 18, 2014

    92 s10 Blazer will not start. I just replaced fuel pump so its getting fuel but no do find the problem

  • Anonymous Mar 29, 2014

    need to replace the horn but can't locate it



1 Answer


Check the fuse under the dash. Did you replace the inline fuel filter? If not, you could loosen the line going into the filter then turn the key to the on position. The pump should run for about 2 seconds then the relay should kick off. Turn off the key for approx. 5 seconds then cycle key back on and the pump should cycle again. If you get a 2 second burst of fuel each time then the pump is cycling. Install a new fuel filter and check the grounded wire by the tank. Hope this helps. :)

Posted on Nov 03, 2008


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