Question about GMC Sierra 1500

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1994 gmc sierra ext.cab4x4 takes forever to start stalls immediately when it does start chkd. fuel system Is Fine changed distributor, cap rotor wires and plugs map sensor,computor TPS ,

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  • red echo 02 Nov 07, 2010

    it has a new fuel pump but thanks anyway



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Sounds like a bad fuel pump.

Posted on Nov 07, 2010

  • Clint Smock
    Clint Smock Nov 09, 2010

    Just because it is new doesn't mean it is good. You can get bad parts. Have you checked the fuel pressure. Also the hose between the pump and the sending unit can split. Was this hose changed when you replaced the pump? A fuel pressure test will eliminate the system as a problem. Fuel pressure needs to be 11-13 psi.



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