Truck Falls on face - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 21 (permalink) Old 02-07-2009, 07:38 PM Thread Starter
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Truck Falls on face

when i spool up and launch in 4wd some times in first gear almost at the end of it when my rpms r maxed out just before it shifts my truck will just fall on its face, like down to an idle, then its fine again, and it only does it once in awhile not all the time, any ideas or has anyone experienced this?

02 7.3 psd, lots of useless mods.... (sold)
77 chevy c-10 2wd
87 fox body notch back 5.0

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post #2 of 21 (permalink) Old 02-07-2009, 07:41 PM
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Re: Truck Falls on face

Yep, mine was doing this too. It was a bad IPR in my case.
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post #3 of 21 (permalink) Old 02-07-2009, 07:46 PM Thread Starter
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Re: Truck Falls on face

how did you dtermine?

02 7.3 psd, lots of useless mods.... (sold)
77 chevy c-10 2wd
87 fox body notch back 5.0

"The only difference between tattooed ppl and Untattooed ppl is, that tattooed ppl are way cooler....and can kick your ASS"
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post #4 of 21 (permalink) Old 02-07-2009, 08:27 PM Thread Starter
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Re: Truck Falls on face

any other ideas guys, how to check this out or ideas?

02 7.3 psd, lots of useless mods.... (sold)
77 chevy c-10 2wd
87 fox body notch back 5.0

"The only difference between tattooed ppl and Untattooed ppl is, that tattooed ppl are way cooler....and can kick your ASS"
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post #5 of 21 (permalink) Old 02-07-2009, 08:55 PM
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Re: Truck Falls on face

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Originally Posted by helvis View Post
how did you dtermine?
With a scanner, watched ICP drop.
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post #6 of 21 (permalink) Old 02-07-2009, 08:58 PM Thread Starter
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Re: Truck Falls on face

gotcha, what did yours drop too?

02 7.3 psd, lots of useless mods.... (sold)
77 chevy c-10 2wd
87 fox body notch back 5.0

"The only difference between tattooed ppl and Untattooed ppl is, that tattooed ppl are way cooler....and can kick your ASS"
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post #7 of 21 (permalink) Old 02-08-2009, 01:07 AM
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Re: Truck Falls on face

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Originally Posted by helvis View Post
when i spool up and launch in 4wd some times in first gear almost at the end of it when my rpms r maxed out just before it shifts my truck will just fall on its face, like down to an idle, then its fine again, and it only does it once in awhile not all the time, any ideas or has anyone experienced this?
When we were live tuning mine, it started doing the same thing. Turns out the we needed to shin the HPOP and it took care of the problem.

99 F350 CCLB
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post #8 of 21 (permalink) Old 02-08-2009, 03:10 AM
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Re: Truck Falls on face

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Originally Posted by skav View Post
When we were live tuning mine, it started doing the same thing. Turns out the we needed to shin the HPOP and it took care of the problem.
you don't have big oil skav?

Early 99 f350 4x4 crew cab, auto. pmt2 pcm
2001 cup holder ,T500, MAX AC ASSIST AC mod, Diy Twin tymar, TS chip, Powerslots & Hawk pads, ford AIC, ..... with big fat want to list.
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post #9 of 21 (permalink) Old 02-08-2009, 03:22 AM
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Re: Truck Falls on face

Sean had different issues. When demanding ICP above 3600, stock pumps blow-off.

Helvis, are you throwing any codes? Have you watched throttle voltage?
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post #10 of 21 (permalink) Old 02-08-2009, 04:09 PM
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Re: Truck Falls on face

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Originally Posted by southmike View Post
you don't have big oil skav?
Sure do? We shimmed both pumps

Quote:
Originally Posted by TerminatorEngineering View Post
Sean had different issues. When demanding ICP above 3600, stock pumps blow-off.

99 F350 CCLB
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