7.3 dies without warning - Ford Powerstroke Diesel Forum
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post #1 of 15 Old 04-25-2014, 11:17 AM Thread Starter
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7.3 dies without warning

2002 F-250 with the 7.3. It runs fine without any problems and then each of the last two days it will act like a misfire and die altogether while I'm driving. It has also "misfired" three times without dying, but then it runs fine. After it dies, it won't restart right away, but will after it sits a while. I replaced the CPS yesterday with no change. After reading through many threads, I'm thinking maybe the IPR or even the seals on the IPR, or maybe the screen on the fuel pickup. Any thoughts or tests I should run? Thanks in advance.
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post #2 of 15 Old 04-25-2014, 08:12 PM Thread Starter
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Anybody out there?
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post #3 of 15 Old 04-25-2014, 08:28 PM
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pull the plug on your icp sensor. is it oily?

-Vance-
.2002 f350 Lariat 4" lift w/ 35's. Hydra w/PHP. Swamps 175/146 injectors. gauges. banks power elbow, 4" dp 5"out,RiffRaffs FRX ww, ccv, AIH delete riff raff boost port, '10 tailgate mod amongst a bunch of other goods
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post #4 of 15 Old 04-26-2014, 05:36 AM Thread Starter
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I will check it and report back. Thanks
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post #5 of 15 Old 04-26-2014, 07:11 AM
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sounds either icp or ipr related to me. lemme know what ya find with that plug. im going through the same thing right now ha

-Vance-
.2002 f350 Lariat 4" lift w/ 35's. Hydra w/PHP. Swamps 175/146 injectors. gauges. banks power elbow, 4" dp 5"out,RiffRaffs FRX ww, ccv, AIH delete riff raff boost port, '10 tailgate mod amongst a bunch of other goods
.B&W turnover/ companion to haul my 2001 Prowler 5'ver. Home away from home
I.B.E.W. Local 1002


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post #6 of 15 Old 04-26-2014, 08:23 AM Thread Starter
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No oil on ICP plug
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post #7 of 15 Old 04-26-2014, 08:51 AM
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I had a problem very similar to this and it turned out that the nut on the back of the ipr had come loose and was just sitting in the engine valley. Just something that you might check

1999.5 F-250, 7.3 powerstroke, 4x4, ZF6, 5" stack, CCV, Harpoon, AIH delete, IH waterpump, 203 thermostat, powerslot rotors/hawk pads, RR boost fooler, FASS, SCT livewire, RR CAC/IC boots, 6637 intake, EBPV delete, PacBrake airbags
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post #8 of 15 Old 04-26-2014, 10:45 AM
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ya that will do it ^

you could have wire issue with the ipr too.

what cps did you replace it with?

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

Dad-2000 7.3 108k miles, Autometer Gauges, Superchips 1705, RR AIH Delete, 6637, 4" Diamond Eye, BD Billet Wheel, TruCool Max
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post #9 of 15 Old 04-26-2014, 01:29 PM Thread Starter
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Quote:
Originally Posted by blue99stroker View Post
ya that will do it ^

you could have wire issue with the ipr too.

what cps did you replace it with?
I got one from Advance Auto. (I know, I'm thinking I should pick one up from the dealer Monday)
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post #10 of 15 Old 04-26-2014, 02:08 PM
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ya the ones from advance auto are junk.

i would definately get a different cps.

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

Dad-2000 7.3 108k miles, Autometer Gauges, Superchips 1705, RR AIH Delete, 6637, 4" Diamond Eye, BD Billet Wheel, TruCool Max
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