ICP not going to 500psi

[laoz]

HI
I did and oil cooler change, egr delete, stc fitting upgrade, when i cranked the engine the icp goes up to 95 and doesnt go more, iknow that at least i need 500, but why is not going higher, the readings in ipr 14.4, when cranking goes to 78 -80, ficm voltage good, oil gauge in van half way (normal), original filter and cap, new batteries. Before i did the change van was running good, now is driving me nuts, any suggestions.

[dhanna6powerstroke]

How long have you cranked on it? Gonna have a decent amount of air in system since HPOP has been removed.

[Lilpooh]

Usually after doing a oil cooler R&R, dirt/debris from the HPOP resivuor gets pushed into the HPOP and makes its way to the IPR. This can cause the IPR screen to get blocked or can cause IPR screen damage which usually destroys the IPR sensor.

Pull the IPR sensor to see if its blocked, if its blocked you may get away with just cleaning off the screen. If the screen is damaged, then it would be a good idea to put in a new IPR sensor.


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[jimmyv13]

How many times have you cranked it and for how long? It took 4-5 20 second cranks to get my truck to fire after I opened up the oil system. Did you pull the IPR while you had everything apart?

[laoz]

i cranked a few times until baterries weaked, i didnt check the ipr after a few cranks to see if dirty, and going to check, but if ipr screen is clean, how long it takes to clear out the air in the system? i dont want to damage the starter for long cranking time, any other way to prime the hpop?

[laoz]

jimmyv13
i cranked more than six times and didnt pass the 95 psi, i cranked for more than 30 secs, even change the batteries because y messed up one and replaced for tw
o brand new 1000cca, and cranked 3 times and nothing

[jimmyv13]

OK, something else is wrong. Check the IPR screen...


Also, get a charger on those batteries, you'll kill them quickly with this job.

[southend]

Originally Posted by Lilpooh

Usually after doing a oil cooler R&R, dirt/debris from the HPOP resivuor gets pushed into the HPOP and makes its way to the IPR. This can cause the IPR screen to get blocked or can cause IPR screen damage which usually destroys the IPR sensor.

Pull the IPR sensor to see if its blocked, if its blocked you may get away with just cleaning off the screen. If the screen is damaged, then it would be a good idea to put in a new IPR sensor.


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There have been so many post for this lately, I think it has alot to do with people pulling the screen out to look at it. I think it would be a great idea to carefully get the oil out and clean things up a bit, before yanking the screen out.

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[snafu!]

Originally Posted by southend

There have been so many post for this lately, I think it has alot to do with people pulling the screen out to look at it. I think it would be a great idea to carefully get the oil out and clean things up a bit, before yanking the screen out.

Sent from my phone that somebody didn't help me get.

Very good point southend, whenever the oil cooler is pulled and the screen is going to be replaced suck out all the oil before the screen in pulled.

I used a cheap hand pump from orielys and then threw it alway when I was done. After pulling the screen get the valley surgically clean before reinstalling the screen and oil cooler. Use lint free rags, the blue shop towels work really well.

Another thing that should be done before pulling the oil cooler is get the top of the motor clean use a solevant to remove any oil make sure there is nothing that can fall into valley when removing the oil cooler.

[laoz]

ok guys
everything you suggested it is done, and still not going up in the pressure(icp) when i put the stc and pump back every thing fit nice, could be an internal leak in the pump / stc fitting that is not letting build pressure?

the original problem when i stopped the truck was an oil cooler failure everything was normal before that.