Question about 1999 Chevrolet Silverado 1500

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1999 chevy silverado 4.8 1500 will star but not idle

I start the truck turns over starts but instantly turns of. spark plug works, fuel pressure 55- 60 psi, all electrical relays and fuses work.

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  • rflores3307 Dec 31, 2008

    tried gunning but turns off right after. checked filter and its fine ,on dash signals security, low fuel, and gas gauge dose not move.

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  • 176 Answers

Could be as simple as your fuel filter...after the truck starts..can you keep it runing by gunning the motor?

If you can feather the accelerator to keep the motor runing, I'd start at the filter, and then check the fuel pump

Posted on Dec 31, 2008

  • Terry Engel Jan 01, 2009

    the security light will always come on when you open the door on the '99's Silverado, as well as other models..they just do that.



    Have you taken it , or had it towed to a garage where they can run their diagnostics?



    without actually being there to experience the problem with you...it almost sounds as if the ignition switch is not staying in the start position.



    I will keep this one at the top of my to do list, and try to get back to you in the next day, or so.



    I hope this wil help you somewhat until I get back to you, or maybe another service writter will see and answer your wquestion.



    Thank you for being patient, and asking us at FixYa.com

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