Changed the fuel filter ran good then died - Page 2 - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #16 of 30 (permalink) Old 08-14-2018, 01:13 AM
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Originally Posted by Dhoop49 View Post
We noticed the old filter had some loose glue is it possible that some of this material got into a valve or the check valve and stopped fuel to the pump? We have fuel to the bowl but not out of it
Yes its very possible, you should take the standpipe out and inspect it. I comes out easily and comes apart easily. I don't even have the plunger in mine anymore, I removed it entirely.

2002 F250 Super Duty Crew Cab 7.3L Lariat 2WD 131,000mi; 4in turbo back custom exhaust, Garrett GTP38R turbo, Riffraff intercooler boots, Dorman Up-Pipes, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, Scangauge II, ISSPRO EV2 Boost-EGT-Trans temp-Fuel pressure Gauges, DP T-5 Tuner (stock ,60HP tow, Decel, 60HP highway econo, 80HP city econo), Dieselsite coolant filtration, Max Air A/C mod, foglight mod, AIH delete, LED interior, back up camera, hid foglights.


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post #17 of 30 (permalink) Old 08-14-2018, 08:26 PM Thread Starter
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Checked both fuses checked the icp removed and inspected the stand pipe and Valve. Even removed the plunger and still no fire. Any other ideas on which way to go from here ? Thanks for the help so far
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post #18 of 30 (permalink) Old 08-14-2018, 08:29 PM Thread Starter
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Couldnit be the cam sensor ? Where is it located if it may be
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post #19 of 30 (permalink) Old 08-14-2018, 08:44 PM
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This may help. Might not be the same year as yours, but its the same location. CPS would have been one of the #1 things to check. You should carry a spare in your truck, they are prone to failure eventually. Replace only with OEM Motocraft part. Aftermarket ones have a proven to be problematic and not worth the money saved.

2002 F250 Super Duty Crew Cab 7.3L Lariat 2WD 131,000mi; 4in turbo back custom exhaust, Garrett GTP38R turbo, Riffraff intercooler boots, Dorman Up-Pipes, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, Scangauge II, ISSPRO EV2 Boost-EGT-Trans temp-Fuel pressure Gauges, DP T-5 Tuner (stock ,60HP tow, Decel, 60HP highway econo, 80HP city econo), Dieselsite coolant filtration, Max Air A/C mod, foglight mod, AIH delete, LED interior, back up camera, hid foglights.


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post #20 of 30 (permalink) Old 08-14-2018, 08:51 PM
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One more possibility is the IPR valve located under the HPOP. It controls the amount of fuel to the injectors. It has a small tin nut on the end of it that can come loose ( Look for it in the valley of the engine).and fall off resulting in no start issue.

2002 F250 Super Duty Crew Cab 7.3L Lariat 2WD 131,000mi; 4in turbo back custom exhaust, Garrett GTP38R turbo, Riffraff intercooler boots, Dorman Up-Pipes, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, Scangauge II, ISSPRO EV2 Boost-EGT-Trans temp-Fuel pressure Gauges, DP T-5 Tuner (stock ,60HP tow, Decel, 60HP highway econo, 80HP city econo), Dieselsite coolant filtration, Max Air A/C mod, foglight mod, AIH delete, LED interior, back up camera, hid foglights.


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post #21 of 30 (permalink) Old 08-14-2018, 09:21 PM Thread Starter
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We've noticed the ipr is oil soaked. So this maybe our problem? Will an ipr just shut the truck down ?
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post #22 of 30 (permalink) Old 08-14-2018, 09:23 PM Thread Starter
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Can we clean off the coil Will that be possible? Or do we need a new one?
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post #23 of 30 (permalink) Old 08-14-2018, 10:15 PM
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A bad IPR will cause a no start issue.I don't think cleaning the coil will help but you can try., you obviously have an oring that has gone bad. that's why it is oily. Oil soaked wires can cause problems with electrical components. If you could read IPR values via a reader it would help diagnose the problem. Invest in a Scangauge II or a similar devices that will read many of the parameters that these trucks require to run. A new Motocraft IPR will set you back about 160$

2002 F250 Super Duty Crew Cab 7.3L Lariat 2WD 131,000mi; 4in turbo back custom exhaust, Garrett GTP38R turbo, Riffraff intercooler boots, Dorman Up-Pipes, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, Scangauge II, ISSPRO EV2 Boost-EGT-Trans temp-Fuel pressure Gauges, DP T-5 Tuner (stock ,60HP tow, Decel, 60HP highway econo, 80HP city econo), Dieselsite coolant filtration, Max Air A/C mod, foglight mod, AIH delete, LED interior, back up camera, hid foglights.


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post #24 of 30 (permalink) Old 08-16-2018, 03:23 PM Thread Starter
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Update... So far everything we've done has had no effect. Guess we're going to try changing the IPR.
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post #25 of 30 (permalink) Old 08-16-2018, 05:53 PM Thread Starter
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Pulled the drain plug out of the hpop and no oil however the res is full
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post #26 of 30 (permalink) Old 08-16-2018, 05:54 PM Thread Starter
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Do we have a bad pump?
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post #27 of 30 (permalink) Old 08-16-2018, 06:23 PM
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Saw a youtube video from Dieseltechron that shows how to deadhead a pump with some fittings and an ICP sensor to see if its working properly. But that would require you having a way to read data which would probably help you to fix the problem.

2002 F250 Super Duty Crew Cab 7.3L Lariat 2WD 131,000mi; 4in turbo back custom exhaust, Garrett GTP38R turbo, Riffraff intercooler boots, Dorman Up-Pipes, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, Scangauge II, ISSPRO EV2 Boost-EGT-Trans temp-Fuel pressure Gauges, DP T-5 Tuner (stock ,60HP tow, Decel, 60HP highway econo, 80HP city econo), Dieselsite coolant filtration, Max Air A/C mod, foglight mod, AIH delete, LED interior, back up camera, hid foglights.


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post #28 of 30 (permalink) Old 08-16-2018, 11:37 PM
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Here is a good description of the HPOP system including the role of ICP & IPR.

https://deadheaddiesel.com/7.3-powerstroke-hpop/
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2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


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2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Stancor GPR. Walker BTM. Noco Mod. Michelin Defender LTX 285/75/16.

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2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
NOS Black CPS. Rebuilt Fuel bowl w/gold spring, 6.0 Cooler, Walker BTM, Stancor GPR, Michelin LTX M&S2.
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post #29 of 30 (permalink) Old 08-18-2018, 12:10 PM
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Are you using a motorcraft filter and separated cap? I have seen aftermarket cap and filter combos that will not screw down far enough to push down the valve in the fuel stem. It could be just barely pushing it down.

2000 F350 DRW 7.3
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post #30 of 30 (permalink) Old 08-23-2018, 11:18 AM Thread Starter
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Update. Replaced the IPR when we did we noticed no oil in the pump but the res is full. I'm thinking this is our problem. How is the pump fed from the res? Can this be plugged?
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