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Hooked battery up backwards heard pop an smoked in relay for fuel pump box no physical damage but truck now turns over but wont start when I put gas in throttle body it runs till gas runs out ?

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  • lynda filyaw Jan 13, 2013

    it is a 5.7 and has all power turns over acts like not getting gas. if i pour gas in throttle body its starts and runs till gas runs out

  • lynda filyaw Jan 13, 2013

    we are working on this rt now there is a couple fuses we havent found yet fuel pump wire diagram shows 2 fuses and we have only found 1 and not sure where injector fuses are @

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  • Cars & Trucks Master
  • 21,873 Answers

Well you either blew a fuse, or smoked a relay.
Have you tested the fuel pump relay circuit ?

Posted on Jan 13, 2013

  • lynda filyaw Jan 16, 2013

    Have checked every fuse and replaced relay still no start

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SOURCE: 1996 GMC Sierra 1500 truck fuel problem

Have you check the injector relay or maybe a fuse for injectors.

Posted on Aug 27, 2008

heavymetal77
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SOURCE: 95 dakota cranks but wont start

Well I'm a chrysler master tech & this is a little odd. There's alot of things not in the question so here are mine. I'm assuming it's a 3.9 no 4wd. When did this happen? When you check for power do you have some one turn the key on while you check? If still no power then make sure all the fuses are good from the one under the hood to the one inside the cab. Next be sure to check the grounds. You'll need to by a manual like a Haynes in order to get a decent wiring diagram. In a worst case senario the main power box under the hood has an issue & the asd relay gets no power,hence no start. Ran into it on a 95 caravan & it took a week to figure it out & no replacement was available & I had to hard wire it so it would run. Hope this helps.

Posted on Jun 20, 2009

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SOURCE: 87 F150 wont start. New fuel pump, rail,

try changing the igniton module on the distribuitor in most cases it's the problem if you dont want to buy it you can take the ignition module to a autozone and they will check it for free

Posted on Sep 19, 2009

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SOURCE: 1999 chevy blazer fuel pump cycles when key is on

check or replace fuel pump relay

Posted on Sep 27, 2009

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