replaced #5 inj. now no HPO

fbilly420 · Feb 15, 2013

06 Replaced number 5 injector now only have 50ish psi hpo. unplugged icp still same. took valve cover back off and cranked no visiual leaks. IPR?

fordfreak4life · Feb 15, 2013

fbilly420 said:
06 Replaced number 5 injector now only have 50ish psi hpo. unplugged icp still same. took valve cover back off and cranked no visiual leaks. IPR?

how long have u cranked? did u pull the stand pipe out with the rail?

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fbilly420 · Feb 15, 2013

Well after the install I cranked for approx 20 sec and it started and ran for 15 sec and died. Now no HPO I have cranked on it for total of probably 5 min with cool down breaks for the starter. I removed the stand pipe from the rear port before I removed the rail. Reinstalled after the rail was retourqued down.

fordfreak4life · Feb 15, 2013

sounds like a blown oring or ipr stuck open

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fbilly420 · Feb 16, 2013

Well I pulled IPR, screen is blown out. Can it be repaired or does it need to be replaced?

907DAVE · Feb 16, 2013

You need to replace it. Any debris in whats left of the screen?

fbilly420 · Feb 16, 2013

tiny little pieces maybe 15 to 20 of them. Looks like dirt?

907DAVE · Feb 16, 2013

The debris in the IPR is from the hpop. You will need them replace the IPR - just remember a new hpop may be needed in the near future.

Mdub707 · Feb 19, 2013

Yeah that's usually a sign of the HPOP dying.

fbilly420 · Feb 20, 2013

Little update, replaced ipr and all is well for now.

6speedsd · Feb 21, 2013

Not to hijack here, but where are you guys reading HPO pressures? Test port in a billet oil filter cap?

fordfreak4life · Feb 22, 2013

6speedsd said:
Not to hijack here, but where are you guys reading HPO pressures? Test port in a billet oil filter cap?

Scanner, the billet cap will only give you access to lpo

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6speedsd · Feb 22, 2013

I have AE. Can I measure with that? And if so, how? Still in a learning curve with my AE.

fordfreak4life · Feb 22, 2013

6speedsd said:
I have AE. Can I measure with that? And if so, how? Still in a learning curve with my AE.

icp voltage, icp pressure, also read ipr % while ur there

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6speedsd · Feb 22, 2013

Ok. Reason I ask is that I'm trying to diagnose an issue with my dads truck. Had someone mention a failing hpop, and I want to be damn sure before I tell him to drop that much coin just to see if it fixes it.

I have measured all those and they stay pretty in check.

fordfreak4life · Feb 23, 2013

6speedsd said:
Ok. Reason I ask is that I'm trying to diagnose an issue with my dads truck. Had someone mention a failing hpop, and I want to be damn sure before I tell him to drop that much coin just to see if it fixes it.

I have measured all those and they stay pretty in check.

What were your readings?

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6speedsd · Feb 23, 2013

I knew someone would ask me that! Honestly don't remember. Measured them almost a week ago. Was talking to a fellow member here when I was reading them and he said everything looked pretty good.