Wiring Harness $ ?
Junior User
Joined: Jun 2011
Posts: 57
Likes: 0
From: Denver CO
I think you are on the right track with the wiring harness as the suspect. I fixed similar issues by cutting out crimp connectors and soldering the wire connections. For more information click on my name in this post, then click on "find all posts".
Good Luck!
Good Luck!
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Senior User
Joined: Apr 2007
Posts: 144
Likes: 1
Thanks for all the suggestions. I've turned this over to a local mechanic and had a good interview/discussion with him. He said that he see's this many times and just from the little I shared with the receptionist over the phone had a good troubleshooting plan together. We talked for about 20 minutes and I feel comfortable that he knows exactly how to diagose the issue. I think after he rules some easy things out ICP/IPR and wire chaffing he is going to pressurize the HPO system and look for leaks on the stanpipe and dummy plugs. He estimated if that was the problem to cost about $600. Don't know if that is a reasonable price, but I'd be happy with that if it solves my issures.
On the way over I was getting a feel for the ICP & IPR relationship. I'm assuming they are related and together control the "high pressure oil" pressure. When I was accelerating the pressure would go up to about 3500 and the valve output would also rise. At Idle I was seeing about 22% on the valve and about 575 on the pressure. Is that correct? FICM voltage stayed mostly at 47.5.
On the way over I was getting a feel for the ICP & IPR relationship. I'm assuming they are related and together control the "high pressure oil" pressure. When I was accelerating the pressure would go up to about 3500 and the valve output would also rise. At Idle I was seeing about 22% on the valve and about 575 on the pressure. Is that correct? FICM voltage stayed mostly at 47.5.
Elder User
Joined: Dec 2010
Posts: 516
Likes: 0
From: LA = Lower Alabama
Yep, those are the values my truck shows. And I just replaced my HPOP and dummy plug/standpipe on driver's side. FICM looks good. It's just hard to troubleshoot intermittent no starts. Be better if it just wouldn't start, period.
$600 sounds great to me... Parts not included would be my guess too...
$600 sounds great to me... Parts not included would be my guess too...
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Senior User
Joined: Apr 2007
Posts: 144
Likes: 1
I'm going to throw some money(bulettproofing) at it next spring after taxes and bonuses. Are there anythings that I need to take care of now if they have to tear it down to that level that would save big on the next go around. EGR cooler upgrade or delete, Turbo cleaning, CCV reroute, all are things that don't seem to require a big tear down, but are there any other things that I should do now while they have it apart? How about the oil cooler?
Elder User
Joined: Dec 2010
Posts: 516
Likes: 0
From: LA = Lower Alabama
As far as your oil cooler... Monitor your EOT and ECT for a while and see how the spread is. The proper way to test is 65 mph 20 mile drive. EOT should stay within 5 - 6 degrees. Anymore is a sign you roil cooler is beginning to clog. DOn't jump to any conclusions just yet. It takes a little time to see how she's doing...
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
LMAO--that may or may NOT be a good thing..........
All the TSB's are accessable from this website IIRC. AE was a gift from someone I can't possibly do enough for because of what he does for our country. All this is a work in progress and if you think I've got cool stuff you should see Bismic's unabridged version. OMG. His makes mine look like cliff notes.
All the TSB's are accessable from this website IIRC. AE was a gift from someone I can't possibly do enough for because of what he does for our country. All this is a work in progress and if you think I've got cool stuff you should see Bismic's unabridged version. OMG. His makes mine look like cliff notes.
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Elder User
Joined: Dec 2010
Posts: 516
Likes: 0
From: LA = Lower Alabama
I can only imagine about Mark... He probably has an AF an AH and AI to boot. I see his posts on other forums and take notes on his stuff constantly. I do appreciate the attention to detail.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Dude......you can't possibly imagine what a stand up guy he is to go along with everything else he does. Just an incredible individual.
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Senior User
Joined: Apr 2007
Posts: 144
Likes: 1
Update
Good news today. I had some codes that seems to have solved the issues. Some EGR codes and a MAP sensor code. The paper recording the codes is out in the truck I'll post them later. But there appears to have been a problem with the connector of the MAP sensor and they cleaned the EGR along with some fresh fuel filters and it appears to be fixed for now.
Afterwards I discovered my Oil cooler is needing replacement. I was planning on doing that anyway with a new EGR cooler or delete, but now I may have to do that earlier than anticipated. 30 degree delta at 60 mph. All else looks good. Going to upgrade to the Blue Spring and CCV reroute with possible turbo cleaning.
Thanks for all your help.
Afterwards I discovered my Oil cooler is needing replacement. I was planning on doing that anyway with a new EGR cooler or delete, but now I may have to do that earlier than anticipated. 30 degree delta at 60 mph. All else looks good. Going to upgrade to the Blue Spring and CCV reroute with possible turbo cleaning.
Thanks for all your help.
Elder User
Joined: Dec 2010
Posts: 516
Likes: 0
From: LA = Lower Alabama
Glad you got your Scangauge in and working. It'll be very helpful going down the road (pun intended). Also great news on the codes and getting fixed up. Now you have a nice project to look forward to, sooner rather than later...
Thanks for the update...
Thanks for the update...
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