2000 7.3 engine backfire - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 01-15-2012, 09:19 AM Thread Starter
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2000 7.3 engine backfire

okay i have a 2000 7.3 psd last night i was out coyote hunting and on my way to the next hunting spot and i noticed what sounded like a exhaust leak so i thought my perometer fell out again so i headed to the house and started to notice a loss in power i got home and noticed that the pop i was hearing was actually coming out of my air filter and it flutters like its out of time. if anyone has any thoughts of what it might be please let me know im gonna try to make a video of it and get a link on here in a little bit thank you

harness00 2000 ford f-250 7.3 psd swamps hybrid 250/100% injectors, swamps high frequency idm, custom ts chip, garrett gtp38r turbo, k&n intake, banks techni cooler, hpx cross over line, fuel lab prodigy fuel pump, south bend ceramic button clutch, adrenaline hpop, driven regulated return, swamps high rate valve springs, smith brothers billet pushrods, 4in down pipe 5in exhaust, 5" miter cut black stack, soon to be 7" hood stack probably.
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post #2 of 14 Old 01-15-2012, 10:57 AM Thread Starter
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okay so i got it pulled in the garage and started taking it apart got the drivers side valve cover off and noticed that the exhaust valve on cylinder 2 push rod was missing i dug it out with a magnet and it was snapped in half

harness00 2000 ford f-250 7.3 psd swamps hybrid 250/100% injectors, swamps high frequency idm, custom ts chip, garrett gtp38r turbo, k&n intake, banks techni cooler, hpx cross over line, fuel lab prodigy fuel pump, south bend ceramic button clutch, adrenaline hpop, driven regulated return, swamps high rate valve springs, smith brothers billet pushrods, 4in down pipe 5in exhaust, 5" miter cut black stack, soon to be 7" hood stack probably.
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post #3 of 14 Old 01-15-2012, 11:30 AM
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That's weird.



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post #4 of 14 Old 01-19-2012, 05:30 PM Thread Starter
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in the tear down found i had 5 more bent push rods just ordered new push rods and high rpm/ boost valve springs

harness00 2000 ford f-250 7.3 psd swamps hybrid 250/100% injectors, swamps high frequency idm, custom ts chip, garrett gtp38r turbo, k&n intake, banks techni cooler, hpx cross over line, fuel lab prodigy fuel pump, south bend ceramic button clutch, adrenaline hpop, driven regulated return, swamps high rate valve springs, smith brothers billet pushrods, 4in down pipe 5in exhaust, 5" miter cut black stack, soon to be 7" hood stack probably.
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post #5 of 14 Old 01-19-2012, 06:03 PM
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Geez. Did you over rev it?



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post #6 of 14 Old 01-19-2012, 06:11 PM
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What did you do to it before it started this? I've never heard of it on a 7.3 before.

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post #7 of 14 Old 01-20-2012, 06:52 PM Thread Starter
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Man all I can think is boost because ever since I put all the performance on it. It has never seen over 3000rpm and what do you mean by what did I do to it before this

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harness00 2000 ford f-250 7.3 psd swamps hybrid 250/100% injectors, swamps high frequency idm, custom ts chip, garrett gtp38r turbo, k&n intake, banks techni cooler, hpx cross over line, fuel lab prodigy fuel pump, south bend ceramic button clutch, adrenaline hpop, driven regulated return, swamps high rate valve springs, smith brothers billet pushrods, 4in down pipe 5in exhaust, 5" miter cut black stack, soon to be 7" hood stack probably.
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post #8 of 14 Old 01-20-2012, 07:04 PM
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As in what were you doing before you noticed the problem?



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
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post #9 of 14 Old 01-21-2012, 04:17 AM
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What he said.

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post #10 of 14 Old 01-21-2012, 04:25 AM
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I've heard of and seen this before. If I was going to blame what causes it it's normally from over revving, and that's probably even more possible for the OP since he has a manual trans. Seems like it mostly only happens on tuned trucks as well.
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