Cold No Start
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4wd High
Joined: Aug 2021
Posts: 9
Likes: 0
From: Arizona and Utah
Cold No Start
Hi
I have a 2004.5 f350 6.0 powerstroke. I just replaced the head gaskets, stand pipes, dummy plugs, IPR, and ICP sensor. The truck will not start now. When I connect my scanner it says that I have 48.5 Volts at the FICM, there is sync, but the IPR is at 85% while cranking and the ICP is only reading 60 psi and the voltage at the icp sensor is only 0.3 Volts. The guage in the truck says that I am building low pressure oil pressure.
Does this mean that I have a HPO leak or that the HPOP is bad? It there a way I can check the problem without having to pull everything back off?
Thanks
I have a 2004.5 f350 6.0 powerstroke. I just replaced the head gaskets, stand pipes, dummy plugs, IPR, and ICP sensor. The truck will not start now. When I connect my scanner it says that I have 48.5 Volts at the FICM, there is sync, but the IPR is at 85% while cranking and the ICP is only reading 60 psi and the voltage at the icp sensor is only 0.3 Volts. The guage in the truck says that I am building low pressure oil pressure.
Does this mean that I have a HPO leak or that the HPOP is bad? It there a way I can check the problem without having to pull everything back off?
Thanks
Last edited by Brian7.3; Aug 15, 2022 at 08:26 PM.
Hotshot
Joined: Dec 2014
Posts: 17,824
Likes: 3,104
From: Jersey Shore
It sure sounds like you have a leak.
The test is to buy an adaptor for the IPR valve (there are adaptors for the ICP sensor, but them you have to electrically close the IRP), apply 125-150psi of air t the system and listen for leaks with the valve covers off.
You can Google search for this procedure, there are threads on this forum and just about all other 6.0L related forums going on almost every week.
Mark, Bismic, usually jumps on these,
One from this forum: https://www.ford-trucks.com/forums/1...sure-test.html
Here is one of his threads from PS.org.
https://www.powerstroke.org/threads/...-hpop.1377267/
The test is to buy an adaptor for the IPR valve (there are adaptors for the ICP sensor, but them you have to electrically close the IRP), apply 125-150psi of air t the system and listen for leaks with the valve covers off.
You can Google search for this procedure, there are threads on this forum and just about all other 6.0L related forums going on almost every week.
Mark, Bismic, usually jumps on these,
One from this forum: https://www.ford-trucks.com/forums/1...sure-test.html
Here is one of his threads from PS.org.
https://www.powerstroke.org/threads/...-hpop.1377267/
Thread Starter
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4wd High
Joined: Aug 2021
Posts: 9
Likes: 0
From: Arizona and Utah
So I did the air test through the IPR port. I didn't hear/see any leaks. All I heard was a gurgling sound coming from the oil filter housing. What does this mean? Is the HPOP bad?
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