just died
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5th Wheeling
Joined: Jul 2009
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just died
OK i just went out and tested the icp sensor by the way mark described in the tech folder and red on dark blue and light green and black on red and gray. With key on it showed 0.28 and no change at all with the engine cranking. Does anybody know if that narrrows it down to being either the hpop or the ipr. Thanks for any imput and by the way the tech folders are supurb.
Resident smarta$$
Joined: Aug 2006
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From: Oaks,PA
The situation Mark helped me to help another was showing about the same volts, and it ended up being HPOP. But at that point of the diagnosis he had it towed to the dealer as it was still under warranty.
Edit: When I had my HPOP replaced at the dealer they replaced the IPR and ICP at the same time. HTH
Edit: When I had my HPOP replaced at the dealer they replaced the IPR and ICP at the same time. HTH
Resident smarta$$
Joined: Aug 2006
Posts: 4,929
Likes: 9
From: Oaks,PA
ADD- attention deficit disorder, CRS- Can't remember shyte. Sorry for the confusion. I was referring to myself 
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5th Wheeling
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Thats pretty funny i must be in the same situation because i thought you were refering to the cam or crank sensor.LOL
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Junior User
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Make a fitting to fit into the ICP sensor port where you can add pressurized air to the high pressure oil system. Then make a connector to go into the IPR connector where you can supply 12v to it (I.E. two clamps on the end where you can put it on the battery).......Good luck finding a connector. FYI it is the same connector that is on the VGT solenoid. OR ford makes a special service tool for this, but not sure how much it is going to cost. Apply pressurized air to the oil system through the ICP port, let it bleed the oil out of the system, then plug in the IPR. You should hear an audible change in the sound (on a truck with no leaks you should hear almost nothing). Too much work for ya'? LOL...........if you decide to do all that come back with your findings.
Elder User
Joined: Dec 2005
Posts: 604
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pull the IPR
And take a look at the screen on the end. Since you were fiddling with it, make sure the plug is plugged in good. Should also be dry. No oil on the plug.
Last edited by matty169; Sep 27, 2009 at 08:35 PM. Reason: new
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5th Wheeling
Joined: Jul 2009
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thanks silverstang would ford be able to diagnose to a certainty between the hpop and the ipr. Ive destroyed two vehicles from incompetent ford mech. ford ranger oil pump they said was sending unit woops. rotation of tires that the lugnuts forgot to get tightened on there on. OH SO SORRY. I live in a area that i have very limited knowlegdeable techs and since i have to have this truck towed i am poked.
Fleet Owner
Joined: Nov 2003
Posts: 27,881
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If you do put a full 12V to the IPR (to listen for the click), do not leave that voltage on it for very long. It will ruin the IPR. I do not recall the time limit right now (CRS is contageous
). I will look for it and post in an edit.Is your pressure gauge on the dash indicating pressure when you crank?
Fleet Owner
Joined: Nov 2003
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Can you get it started at all??
BTW - I still can't recall what year your truck is, etc. Incude it w/ each post so we do not have to search for it.
It should try to start w/ it unplugged. If it does try this:
Erratic supply of high pressure oil to injectors may cause a rough running engine. High pressure oil flow can be disrupted by faulty check valve(s) (valves in the high pressure oil system) or a faulty IPR valve.
To diagnose, first perform a slow neutral run up in park/neutral. If the engine runs rough between 1200 and 1900 RPM proceed to Check Valve Diagnosis; if the engine runs rough between 3000 and 4000 RPM replace the IPR valve.
BTW - I still can't recall what year your truck is, etc. Incude it w/ each post so we do not have to search for it.
It should try to start w/ it unplugged. If it does try this:
Erratic supply of high pressure oil to injectors may cause a rough running engine. High pressure oil flow can be disrupted by faulty check valve(s) (valves in the high pressure oil system) or a faulty IPR valve.
To diagnose, first perform a slow neutral run up in park/neutral. If the engine runs rough between 1200 and 1900 RPM proceed to Check Valve Diagnosis; if the engine runs rough between 3000 and 4000 RPM replace the IPR valve.
