Diagnosing oil pressure issues (LRP & LCP related) - Ford Powerstroke Diesel Forum
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Old 08-06-2013, 12:04 PM
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Diagnosing oil pressure issues (LRP & LCP related)

Problem: Engine cranks over fine starts but dies almost immediately.

So i have been troubleshooting one of our 6.0L. it is an 06. Tested the FICM which we replaced last year with a swamps 58v and it read 57 so not that.

Moved onto testing the LCP and it only read 282mv so only .28 when it should be .6 right? So I swapped the lcp with the one from our other 06 6.0 that is running fine and still getting the same issue.

Next stop would be the lpr no? Are there any other troubleshooting methods to narrow the issue down other than pressure testing with air? Would it be worth it to swap the lpr from our other truck or not worth removing two turbos?

Tried to see if i noticed oil under the turbo to indicate a busted stc fitting but couldnt see well enough to narrow that down.

Truck does have some oil around oil pan and bell housing, so could this be stc related?

Any and all help appreciated!
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Old 08-06-2013, 12:15 PM
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The icp should be at .82 to be able to start... What is the IPR doing? 85% while cranking?
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Old 08-06-2013, 12:41 PM
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I dont have a scan tool, ive been checking voltage with a multimeter at the icp sensor on the valve cover.

I just re checked it and while cranking i have seen volts jump up to 3.xxx
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