No start, IPR issue? - Ford Powerstroke Diesel Forum
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post #1 of 24 Old 11-09-2012, 06:19 PM Thread Starter
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No start, IPR issue?

I have an 03 6.0 I'm working on. Monitored everything withAE and the ICP wouldn't go above 400-420 psi while cranking and IPR was at 85%. Unplugged ICP and it jumped to 1900 psi but still no start. IPR would read 52%. I removed IPR valve to check but can't see any damage to screen. Could it still be bad or what else should I check?

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post #2 of 24 Old 11-09-2012, 06:49 PM
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Check that you have 45 psi min fuel pressure and you have sync and good ficm voltages.

You oil system seems to be doing what it is supposed to do so you want to look for other causes.


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post #3 of 24 Old 11-09-2012, 07:03 PM
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Unless i'm reading this wrong, you have a hpo leak, or a faulty ipr. You should probably perform the hpo leak test.

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post #4 of 24 Old 11-10-2012, 03:44 AM Thread Starter
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Fuel pressure is 55 and FICM is synced

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post #5 of 24 Old 11-10-2012, 04:17 AM
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Man I gotta quit replying without enough sleep. Just reread your post. Southend is right you have a hpo leak run the air tests.


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post #6 of 24 Old 11-10-2012, 10:50 AM Thread Starter
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I need to get an adapter so I can apply air to system.

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post #7 of 24 Old 11-11-2012, 08:09 AM Thread Starter
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Is it normal to hear air coming from the oil filter stand pipe when air is applied to the hole under the HPOP?

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post #8 of 24 Old 11-11-2012, 08:59 AM
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Are you applying air to the icp port? Air should not be coming out of the lpo area.

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post #9 of 24 Old 11-11-2012, 09:02 AM
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Did you apply power to the IPR to close it while running the test?

Air should be applied to the ICP port and the IPR commanded closed other wise you can get a false test.


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post #10 of 24 Old 11-11-2012, 09:12 AM Thread Starter
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I have the cover completely off. Applied air to the top of the pump with cover removed. I now have pump removed and was gonna apply air directly to the branch tubes.

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