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Ford problems.....91 5.0 f150
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<blockquote data-quote="FlatlandFSJ" data-source="post: 581736" data-attributes="member: 8507"><p>This thing has whooped me pretty good. It's my dads work truck, he brought it by the other week and it was running kinda rough. Couple days ago it just wouldn't start anymore, new relays for the ecm/fuel pump/brain on the dist/coil/blah blah blah. Still nothing. Cranks over, no spark no fuel. Dropped the tank, pump checked out good. </p><p></p><p>Tried to pull the codes (jumper wire/dash light deal) and it wouldn't give me anything. Tossed a reman computer in it and it fired right up, ran a little rough but smoothed right out after about 10-15 mins. Rode it around the block a few times, ran great, better then it ever has since he bought it. Shut it off, went to fire it back up the next morning to bring it over to him and nothing. Same thing it was doing when it died a few days ago.</p><p></p><p>I've tested all the relays, and from what I can figure out...The computer is not internally grounding the fuel pump relay, I jumped it at the connector and the pump comes on and runs fine, so the wiring to the pump should be fine. </p><p></p><p>I went over the wiring between the relays and the computer and it all looks good, no bare spots that could short out. </p><p></p><p> I'm lost at this point, any of you ford guys seen this kinda junk before?</p></blockquote><p></p>
[QUOTE="FlatlandFSJ, post: 581736, member: 8507"] This thing has whooped me pretty good. It's my dads work truck, he brought it by the other week and it was running kinda rough. Couple days ago it just wouldn't start anymore, new relays for the ecm/fuel pump/brain on the dist/coil/blah blah blah. Still nothing. Cranks over, no spark no fuel. Dropped the tank, pump checked out good. Tried to pull the codes (jumper wire/dash light deal) and it wouldn't give me anything. Tossed a reman computer in it and it fired right up, ran a little rough but smoothed right out after about 10-15 mins. Rode it around the block a few times, ran great, better then it ever has since he bought it. Shut it off, went to fire it back up the next morning to bring it over to him and nothing. Same thing it was doing when it died a few days ago. I've tested all the relays, and from what I can figure out...The computer is not internally grounding the fuel pump relay, I jumped it at the connector and the pump comes on and runs fine, so the wiring to the pump should be fine. I went over the wiring between the relays and the computer and it all looks good, no bare spots that could short out. I'm lost at this point, any of you ford guys seen this kinda junk before? [/QUOTE]
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