97 OBS Lift pump failure?? - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 05-13-2013, 08:21 PM Thread Starter
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97 OBS Lift pump failure??

As you guys know I don't frequent these parts of the forums too often, but I have a buddy that has a 97 OBS 7.3L but is failing to get fuel to the top of the engine in engine mounted filter housing (not sure if there is one). He wants me to come look at it but I need to know what to look for and what to try so that I can possibly diagnose his truck's issues. Any help would be appreciated. Thanks guys.

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post #2 of 5 Old 05-13-2013, 09:52 PM
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Make sure fuel is getting to the pump, make sure it's pumping, and check fuel pressure at shrader on side of bowl, what's it doing to make him think it's fuel, low oil level will act like its running out of fuel

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
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Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
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Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #3 of 5 Old 05-14-2013, 10:06 AM
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Cycle the tank selector and make sure the fuel delivery issue is not a tank pickup issue.

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
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post #4 of 5 Old 05-14-2013, 10:20 AM Thread Starter
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Do they all have that?

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post #5 of 5 Old 05-14-2013, 10:34 AM
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a tank selector? yes its the switch next to the head light knob

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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