IDM or IPR? - Ford Powerstroke Diesel Forum
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Old 11-07-2012, 01:48 PM
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IDM or IPR?

This seems to be a hot topic on here as of late - the crank no start.
Here's the deal:
1997 4x4, 5spd
GPR and plugs are good, Starter, and relay is good. I have fuel pressure. I did have to fill the HPOP up before I started all of this. (truck sat for a few months). I put treatment in the fuel, I know thats good. Oil is full on dipstick. New fuel filter.
It will crank till the batteries die, no smoke out of the pipe, no raw fuel smell. No CEL. I need to look and see if the tach moves, however I just put a new CPS in it before I parked it due to the recall.
It won't even start with ether (I know, I know... bad )
From what I have researched I'm leaning towards the IPR or the IDM.
Can anyone PLEASE give me some direction. I'm about to tear my hair out!

Thanks in advance.
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Old 11-08-2012, 01:35 PM
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Your list doesn't say if you've checked the #22 fuse or relays 1 and 2.
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Old 11-11-2012, 09:49 AM
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oops.. Yes the fuses and relays are good. Thanks for the reply!
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Old 11-11-2012, 04:14 PM
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Do you have a DVOM?
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Old 11-12-2012, 08:28 PM
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DVOM

Sure do. Thats what I was checking fuses with, as well as just by sight. Where should I be checking voltages / resistance at to rule out problems?

Also - theres an IH dealer right by my house, so i picked up the pig-tail for the IPR, which I'm going to solder in as soon as I'm not working throughout all of the day light hours of the day. The current connector (2 pin bail type) was connected in fairly well, with the wires coming out of the back not too loose, but it looked pretty cruddy in there, so I figure spending the $20 on it won't hurt anyway.

I really wish I could get my hands on someone's scantool so I can just run it, and not keep wasting time.

O well, I'm learning something this way
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  #6  
Old 11-13-2012, 08:13 AM
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Backprobe the Dark Blue / Light green wire on the ICP. What is the voltage while cranking? Pull the connectors (4) off the VC's and check for oil and burned pins.



To test the IPR:

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