Engine Shut-off....Can't find problem
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From: Anchorage, Alaska
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Joined: Dec 2003
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From: Stuttgart, Ar
He pulled the ICP after the failure which caused a code. That's when he also noticed he didn't have any base oil pressure on the gauge. He cleared that code after the fact.
Is it possible to have a failed PCM that will still store codes? I supposed so unless it was a catastrophic failure?
Is it possible to have a failed PCM that will still store codes? I supposed so unless it was a catastrophic failure?
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Senior User
Joined: Feb 2003
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From: Huntsville
We checked for codes before we pulled the ICP connector and didn't have any. After reconnecting the ICP, we had a code and it was cleared.
Looks like I'm not going to get back to the truck tonight so I'm going to have it towed to the shop in the morning. I'll pass on the updates when I hear back from the tech.
Looks like I'm not going to get back to the truck tonight so I'm going to have it towed to the shop in the morning. I'll pass on the updates when I hear back from the tech.
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From: Huntsville
I could only hope that the issue is a bad relay!
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From: Huntsville
Latest update....the dealership said that I have a high pressure oil issue but he won't know any more until tomorrow morning. He's going to pull the valve covers off to see if he can find where the engine is loosing oil pressure. I'm not sure what is the most common problem with this type of preliminary diagnosis (or how much $$$ I'm looking at) but he said that I could be looking at either HPOP or a STC kit.....I have no idea what a STC kit is.
The odd thing about the engine giving me trouble now is the fact that the truck will be paid off next month and it just rolled 104k miles (out of warranty). I hope and pray that this isn't going to hurt the wallet too bad.
The odd thing about the engine giving me trouble now is the fact that the truck will be paid off next month and it just rolled 104k miles (out of warranty). I hope and pray that this isn't going to hurt the wallet too bad.
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From: Stuttgart, Ar
The STC--snap to connect fitting that connects the pump to the HPO system is a common failure on the 05's.
The highest probablility is the STC fitting. The HPOP on the 05 and up trucks is, or so I've been told, basically bullet proof and has very few failures. Cheap parts but labor intensive. IMHO there is an easy way to diagnose the location of the leak without having to pull the valve covers, but you're stuck with them, and it's not that much to pull the covers. I'm still very confused about what would make your PCM reset (the speedo sweep).
The highest probablility is the STC fitting. The HPOP on the 05 and up trucks is, or so I've been told, basically bullet proof and has very few failures. Cheap parts but labor intensive. IMHO there is an easy way to diagnose the location of the leak without having to pull the valve covers, but you're stuck with them, and it's not that much to pull the covers. I'm still very confused about what would make your PCM reset (the speedo sweep).
Post Fiend
Joined: Oct 2009
Posts: 12,123
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From: N. Fort Worth, tx
define to bad...
really its about 800 for a pump if failed. pumps failing is not that common. labor for both valve covers r/i and an stc fitting 10-14 hours labor give or take depending on all of what has to be done.
really its about 800 for a pump if failed. pumps failing is not that common. labor for both valve covers r/i and an stc fitting 10-14 hours labor give or take depending on all of what has to be done.
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Senior User
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From: Huntsville
Regarding the STC, two questions - Is it necessary to pull the covers to determine if the STC is bad?
Can you give me idea where its located and what labor is involved?
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Senior User
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From: Huntsville
The STC--snap to connect fitting that connects the pump to the HPO system is a common failure on the 05's.
The highest probablility is the STC fitting. The HPOP on the 05 and up trucks is, or so I've been told, basically bullet proof and has very few failures. Cheap parts but labor intensive. IMHO there is an easy way to diagnose the location of the leak without having to pull the valve covers, but you're stuck with them, and it's not that much to pull the covers. I'm still very confused about what would make your PCM reset (the speedo sweep).
The highest probablility is the STC fitting. The HPOP on the 05 and up trucks is, or so I've been told, basically bullet proof and has very few failures. Cheap parts but labor intensive. IMHO there is an easy way to diagnose the location of the leak without having to pull the valve covers, but you're stuck with them, and it's not that much to pull the covers. I'm still very confused about what would make your PCM reset (the speedo sweep).
Regarding the PCM reset, I'm confused too!
Post Fiend
Joined: Oct 2009
Posts: 12,123
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From: N. Fort Worth, tx
sure.
You remove the icp sensor and install an adapter in to the port and pipe 200 psi of air pressure in to the oil system while commanding the the ipr to 100% duty cycle.
you then attempt to listen to were you think the air is comming from. once you think you have it you start chasing it till you find it.
we can also remove the valve covers and isolate one of or both heads to test either a cyclinder bank or the high pressure branch tube and pump.
after all leaks are sealed we can then perform a dead head test of the pump if needed to varifiy that the pump is working. the only issue with the dead head test is a pump can produce pressure and be worn were it fails to produce volume. There is no spec for volume dischared from the pump. I only say this because this test has bitten me in the A$$ before.
more question?
You remove the icp sensor and install an adapter in to the port and pipe 200 psi of air pressure in to the oil system while commanding the the ipr to 100% duty cycle.
you then attempt to listen to were you think the air is comming from. once you think you have it you start chasing it till you find it.
we can also remove the valve covers and isolate one of or both heads to test either a cyclinder bank or the high pressure branch tube and pump.
after all leaks are sealed we can then perform a dead head test of the pump if needed to varifiy that the pump is working. the only issue with the dead head test is a pump can produce pressure and be worn were it fails to produce volume. There is no spec for volume dischared from the pump. I only say this because this test has bitten me in the A$$ before.
more question?
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Senior User
Joined: Feb 2003
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From: Huntsville
Well, while you're on a role, is the procedure that you described "SOP" for the dealership tech's or is my tech taking the long way to find the problem?
Before I forget, thanks for your feedback!
Before I forget, thanks for your feedback!