STUCK IPR?
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Laughing Gas
Joined: Apr 2009
Posts: 903
Likes: 9
From: melbourne beach, fl
STUCK IPR?
97 PSD WITH 128K, have a no start scenario with no codes . Batteries & cps (tach) good, cranking fuel psi good, fuses good (#22 unplugged at fuel bowl) unplugged ipc, also swapped pcm and idm with known function parts with no success. I had a stuck idm on another truck awhile ago and the symptoms seem identical. I notice that the hpop oil level is within 1/2 inch from top does not drop from repeated cranking. Wondering if the hpop level should be lower when cranked 9 times. For some reason I want to think that if the ipr were functioning correctly the hpop oil would drop after quite a few cranks (10 seconds per crank) . Thanks, ROnjon
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Joined: Dec 2012
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From: Oakdale, CA
Do you have a way to monitor ICP and IPR duty cycle while cranking? That will help with diagnosing the issue.
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Laughing Gas
Joined: Apr 2009
Posts: 903
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From: melbourne beach, fl
never got AE or any other of that stuff. At this point easier to pull the ipr and clean it. Basically had the alternator backside charge wire break off and caused the truck to shut down while driving. Have had a few of these and going off of memory it seems like the HPOP would run oil while cranking. Gonna do another thread search as I remember discussing this previously, thankx
Lead Driver
Joined: Sep 2006
Posts: 5,665
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From: Cartersville, Ga
Just had this exact same scenario. Truck died running down the road and would not restart. Took IPR out and apart. Gave it a good cleaning and the truck fired right off.
https://www.ford-trucks.com/forums/1...-no-start.html
https://www.ford-trucks.com/forums/1...-no-start.html
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Laughing Gas
Joined: Apr 2009
Posts: 903
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From: melbourne beach, fl
had some previous success with cleaning ipr and no recurring problems so am incluned to do that next. Wonder what is the part that wears out in the ipr besides o rings? already did the orings on it anyway. Made me up a special socket to get ipr out so its only a 10 minute job on the removal.
FOREIGN GURU
Joined: Jul 2006
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From: Celaya, Gto. MX
had some previous success with cleaning ipr and no recurring problems so am incluned to do that next. Wonder what is the part that wears out in the ipr besides o rings? already did the orings on it anyway. Made me up a special socket to get ipr out so its only a 10 minute job on the removal.
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Lead Driver
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Box end wrench works just fine
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Joined: Dec 2012
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From: Oakdale, CA
had some previous success with cleaning ipr and no recurring problems so am incluned to do that next. Wonder what is the part that wears out in the ipr besides o rings? already did the orings on it anyway. Made me up a special socket to get ipr out so its only a 10 minute job on the removal.
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