Question about 1998 Chevrolet K1500

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I have a 98 chevy silverado 1/2 ton 5.7L motor. My truck will only start after I turn the key over and over to allow the fuel pump to run. I sometimes do it 10 times before it actually starts. After its on it runs great

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  • gismo9999 Mar 11, 2009

    I did about 1000 miles ago. I took it off yesterday and blew through it with little effort.

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The problem may be that it has 55 psi instead of 60-65. Could be the fuel pressure regulator or the fuel pump itself. I have read that these engines need 60 psi minimum to start reliably. Also with the engine off, look down the throttle body with a flashlight and see if the intake appears wet inside, indicating leaking central injectors. There is an upgraded injector assembly available with pressure regulator at autoparts stores. Requires 4-5 hours to replace with experienced mechanical skill level. Would definately upgrade if the pressure regulator needs replaced anyway.

Posted on Feb 02, 2010

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How many grounds are there? and whats the best way to find them. i want to clean my 98 silverado grounds too.

Posted on Jan 13, 2010

  • jerionov Jan 30, 2010

    double nickel- how many grounds were there, and how do you find them?

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Time to replace the fuel filter

Posted on Mar 11, 2009

  • Rick Jones
    Rick Jones Mar 18, 2009

    check fuel pump relay. check fuel pressure regulator. get your self a fuel pressure tester and check pressure at/on fuel rail. lastly replace ignition switch.

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98 chev 1500 z71 ext cab 5.7L 4x4 ---well not start but turns over ,has 55psi of fule ,spark,air,and on codes come up on the scan tool. I have cleaned all the grounds,new fule pump last500kms, new plugs,air filter, fule filter,newer dissurbeter
it was not the frist time about this 2 weeks befor it stoped in the drive way then i changed the cam&crank stated rigth up droved it a week pull in to the shop to do some odd&ends it did not start rigth way but after 12 doz times it starts i had to shot it off to move a nother truck but my **** box never start agien.

Posted on Dec 30, 2009

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