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1998 GMC Jimmy Question: my jimmy will not start i have 20 pounds pressure on at test

 

Question

cwmcrm, Hampton, VA, May 10, 2014, 18:05
 Rookie

I do not here fuel pump and throttle positioning valve makes noise and 15 pounds while trying to start

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  • Answer #1

    Action702 May 10, 2014, 19:26
     Journeyman

    20 psi on your fuel guage tester?

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  • Answer #2

    goodguy May 10, 2014, 19:33
     Master

    sounds like you need a fuel pump

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  • Answer #3

    torque wrench from Stewart's Auto Repair LLC, May 11, 2014, 06:21
     Master

    check the pressure before the fuel filter, if you get readings in the mid to high 50's replace the filter. If still low replace the fuel pump. 20psi is not enough pressure to open injectors. Also check fuel pressure regulator and reyurn line check valve.

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