Crank/No Start 6.0 Excursion
Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
Blade35,
Could you please give me a short rundown on how to do the test you mentioned below:
Can you ohm the harness
Check it from PCM for short to ground on both IPR wires
I will also take the screen off of my IPR and see if the plunger will go up and down as well.
Thanks,
Rob
Could you please give me a short rundown on how to do the test you mentioned below:
Can you ohm the harness
Check it from PCM for short to ground on both IPR wires
I will also take the screen off of my IPR and see if the plunger will go up and down as well.
Thanks,
Rob
Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
So I had a chance to do some testing tonight after replacing the Escape fuel pump. Here is what I did and found:
I hooked up my ohm meter on to the battery negative post and touched either wire in the IPR connector.
The Yellow/Red wire which is the switched ground circuit was at infinity
The Red wire which is voltage start read 1.063 ohms on the 2000 position.
Did I do this test correctly?
The IPR itself read 6 ohms between the two wires.
The screen looked good but I pulled it off anyway and then checked the plunger for movement. It moved about 3/16" and had some resistance to it.
I then made an adapter in the machine shop to screw in to the IPR hole and proceeded to hook it to 120 psi shop air. I took the oil fill cap off but couldn't hear any air leaking anywhere. Is there other spots to listen for air leakage? I have a sick feeling that my HPOP is done but I want to be sure.
Are there any other tests I should be doing?
Rob
I hooked up my ohm meter on to the battery negative post and touched either wire in the IPR connector.
The Yellow/Red wire which is the switched ground circuit was at infinity
The Red wire which is voltage start read 1.063 ohms on the 2000 position.
Did I do this test correctly?
The IPR itself read 6 ohms between the two wires.
The screen looked good but I pulled it off anyway and then checked the plunger for movement. It moved about 3/16" and had some resistance to it.
I then made an adapter in the machine shop to screw in to the IPR hole and proceeded to hook it to 120 psi shop air. I took the oil fill cap off but couldn't hear any air leaking anywhere. Is there other spots to listen for air leakage? I have a sick feeling that my HPOP is done but I want to be sure.
Are there any other tests I should be doing?
Rob
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Sounds like you did ohm test correct
Set DVM to ohm and probe to IPR wires
Can you leave the shop air hooked up and see if after 5-10 min it. Starts to leak
Sometime the oil will seal the system with such low psi shop air that it may take a few to push oil out the way to expose the leak
Set DVM to ohm and probe to IPR wires
Can you leave the shop air hooked up and see if after 5-10 min it. Starts to leak
Sometime the oil will seal the system with such low psi shop air that it may take a few to push oil out the way to expose the leak
Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
What should the meter read while probing the IPR wires? I just want to be sure before I dig into the HPOP itself
Are there any additional tests that I can do on the HPOP itself?
Thanks,
Rob
Are there any additional tests that I can do on the HPOP itself?
Thanks,
Rob
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Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
Hi Everyone,
Is there anything else I can check or other tests to do before I start ripping into the HPOP?
Could the ICP sensor be bad and is there a way to test this?
I am going to put the shop air to it tonight again and let it sit for ten minutes and listen.
Also, when you remove the air hookup from the line going into the IPR tester and I then open the ball valve it starts to squirt oil back out as there is still pressure. Would this be normal?
Thanks,
Rob
Is there anything else I can check or other tests to do before I start ripping into the HPOP?
Could the ICP sensor be bad and is there a way to test this?
I am going to put the shop air to it tonight again and let it sit for ten minutes and listen.
Also, when you remove the air hookup from the line going into the IPR tester and I then open the ball valve it starts to squirt oil back out as there is still pressure. Would this be normal?
Thanks,
Rob
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Freshman User
Joined: Oct 2012
Posts: 40
Likes: 0
From: Cleveland TN
Hi All,
I posted this in the Excursion section but posted it here in hopes for some additional help.
I have had some trouble starting my 2005 6.0 PSD Excursion recently and it happened again last night. I will provide some details as I am hoping for some guidance.
When it doesn't start I hook up a Scangauge II and check the following with KOEO: ICP, IPR, SYN, FICM volts
Results are respectively 0, 14.4, 0, 48.5
Thanks,
Rob
I posted this in the Excursion section but posted it here in hopes for some additional help.
I have had some trouble starting my 2005 6.0 PSD Excursion recently and it happened again last night. I will provide some details as I am hoping for some guidance.
When it doesn't start I hook up a Scangauge II and check the following with KOEO: ICP, IPR, SYN, FICM volts
Results are respectively 0, 14.4, 0, 48.5
Thanks,
Rob
Before replacing the sensor, check the connector for anything that's not bright shiny metal-to-metal contact.
It's near the bottom of the block near the crank pulley on the driver's side and is susceptible to corrosion.
-Bill
Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
Well I had a chance to do some more tests last night.
I brought an air booster from work which intensifies the air going in so now I could put 220 psi into the IPR valve hole. I did this and took the oil cap off and listened again for leaks but found none.
While do this I also went to KOEO and checked the scan gauge and it only read 64 PSI. I then unplugged the ICP sensor and turned the key back on and it read 0 PSI. Shouldn't ICP read whatever I am introducing into the IPR hole?
I am also going to do the same test with a gauge after the ball valve and then turn the valve shut and watch the gauge to see if there are any leaks-the gauge should drop if there is?
I am also trying to find a metric hydraulic fitting where I could put a gauge on the ICP sensor hole to see what pressure is there.
I just am trying to be sure that the HPOP is the culprit before just going ahead and removing it.
Anyone have any suggestions?
Thanks in advance,
Rob
I brought an air booster from work which intensifies the air going in so now I could put 220 psi into the IPR valve hole. I did this and took the oil cap off and listened again for leaks but found none.
While do this I also went to KOEO and checked the scan gauge and it only read 64 PSI. I then unplugged the ICP sensor and turned the key back on and it read 0 PSI. Shouldn't ICP read whatever I am introducing into the IPR hole?
I am also going to do the same test with a gauge after the ball valve and then turn the valve shut and watch the gauge to see if there are any leaks-the gauge should drop if there is?
I am also trying to find a metric hydraulic fitting where I could put a gauge on the ICP sensor hole to see what pressure is there.
I just am trying to be sure that the HPOP is the culprit before just going ahead and removing it.
Anyone have any suggestions?
Thanks in advance,
Rob
Thread Starter
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Laughing Gas
Joined: Jul 2011
Posts: 836
Likes: 213
Well I just did a few more tests.
I rechecked the low pressure and it appears fine.
I then redid the air test to the IPR and put a gauge on the ICP hole as well. Put it up to 220 psi and both gauges read the same. I then closed a ball valve past my booster and watched the gauge for some time. I did start to slowly drop.
I also turned the key on and checked my scan gauge II and it read very close to both mechanical gauges and it was dropping as well. So it appears I do have a leak in the high pressure oil side.
I guess my next move is to take the oil cooler out and look into the valley and the screen. The screen was replaced when the head gaskets were done two years ago.
Am I correct in saying that all signs are pointing to a HPOP?
Rob
I rechecked the low pressure and it appears fine.
I then redid the air test to the IPR and put a gauge on the ICP hole as well. Put it up to 220 psi and both gauges read the same. I then closed a ball valve past my booster and watched the gauge for some time. I did start to slowly drop.
I also turned the key on and checked my scan gauge II and it read very close to both mechanical gauges and it was dropping as well. So it appears I do have a leak in the high pressure oil side.
I guess my next move is to take the oil cooler out and look into the valley and the screen. The screen was replaced when the head gaskets were done two years ago.
Am I correct in saying that all signs are pointing to a HPOP?
Rob