ip bad?

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Mar 10, 2007 | 08:49 AM

jcruth

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ip bad?

how do i know for sure if my ip is bad is there a way to test it? 92 7.3idi non turbo.

Mar 10, 2007 | 10:09 AM

PLC7.3

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From: Manitoba

Tell us what your IP is doing that makes you think it's bad..... not usually tested professionally .......just rebuilt.

Mar 10, 2007 | 10:13 AM

jcruth

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i know i have some air issues but once i get it started(after alot of fightin it) it will only run for 20-30 sece then dies and is a bear to get started again

Mar 10, 2007 | 10:14 AM

jcruth

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i should add that it sounds smooth and idles nice while it does run

Mar 10, 2007 | 10:21 AM

matts156

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From: New Jersey

Sounds more like air getting into the fuel system.

Mar 10, 2007 | 10:26 AM

jcruth

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so my fix is as " simple" as finding the air leak and fixing that??
ive been considering putting compressed air in fuel tank to try and locate air leak..will this cause me any problems as long as i keeep pressure below 15-20 psi??

Mar 10, 2007 | 10:31 AM

matts156

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From: New Jersey

I'd think that 15-20 psi would be more than enough to damage your lift pump. I would disconnect the lines and plug the ends then try the compressed air.

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Mar 10, 2007 | 10:35 AM

roamer37

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From: Grosse Ile Mi.

This is pretty standard way of checking for leaks but dont go over about 30 to 35 inches of water.... you will blow your tank up..

Mar 10, 2007 | 10:40 AM

#10

matts156

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From: New Jersey

Do you know the condition of your return lines or how old the o-rings on the filter assembly are? There are o-rings also in the plastic caps on top of each injector. If any of those are not air-tight, the fuel will bleed back out of the system.