Icp sensor or IPR valve? - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 02-14-2013, 06:38 AM Thread Starter
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Icp sensor or IPR valve?

Would the Icp sensor or IPR valve cause a drop in Icp pressure while the truck is running?
Truck is a 96 f350 with 196,xxx miles, e fuel, t500, tymar intake and your basic other mods.
My wife was driving the other day and the truck started to lose power while she was driving on the hiway. She noticed that the Icp pressure was at about 1400 psi then dropped to about 700 psi and would bounce high and low. I swapped idm's on Saturday thinking that was it but the truck is still acting up.
Thanks for looking.

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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
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post #2 of 5 Old 02-14-2013, 06:51 AM
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Most likely the IPR needs adjusted.

2003 6.0 F350 dually on high cholesterol fuel (WVO)
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post #3 of 5 Old 02-15-2013, 06:28 AM Thread Starter
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I spoke with Patrick from swamps diesel yesterday, they are molding my idm, and he said my problem is more than likely a tired injector or two. He described the symptoms that my truck is having to the tee. I did a buzz test the other day and they all passed but I did notice an audible difference in a couple of injectors that sounded a little tired. So it looks like I'll be doing injectors soon.

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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
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post #4 of 5 Old 02-15-2013, 11:28 AM
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It sounds like an IPR issue to me as well.

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post #5 of 5 Old 02-15-2013, 07:53 PM Thread Starter
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I swapped IPR valves and truck acted the same. No power on take off and would lose power like it was starving for fuel.

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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
USMC 1993-1998
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