Hot Re-start, STC fitting?? w/ video - Ford Powerstroke Diesel Forum
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Old 07-28-2012, 04:41 AM
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Hot Re-start, STC fitting?? w/ video

My first 6.0 problem started yesterday, at 136k miles. It did this once last summer, but started right back up, and hoped it was a fluke. It happened twice yesterday. No dash lights, no smoke, but I think the problem has been coming. I've noticed lately, turbo spool-up has been lazy. Step down from a dead stop and it takes a while for the turbo to spin up. But, when it does, you almost have to back-off because she takes off.

I've looked into what it's going to take to tackle the STC fitting, as well as o-rings on the plugs. Looking for advice on where to start, and make sure that is the problem. Any help would be greatly appreciated!

Truck
2005 Excursion - completely stock
Engine built 11/2004
136k miles and maintained well
Oil: 2k miles on Lubrication Engineers 15w-40 w/ Motorcraft Filter
Fuel Filter: 2k miles on Motorcraft Filters
Diesel-Kleen used at every fill-up

Conditions at Problem
Sat for 6 days w/o running - 96 degrees outside (typical Florida heat and humidity)
Drove 6 miles, shut-off, restart no problem
Drove 3 miles, shut-off, restart no problem
Drove 12 miles, shut-off, no restart 5 mins later
Let it sit for 20 mins and it restarted

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Old 07-28-2012, 05:39 AM
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You are on the right track imo. Do you have a monitor? Without a monitor you are driving on borrowed time. Read this....Write Up: Monitoring the 6.0L PSD. to diagnose without a monitor.

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Old 07-28-2012, 06:05 AM
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Thanks for the reference to the monitors. To answer your question, No, I do not have one. Have often thought about it. Was really saving my money to send the truck up to Atlanta to have the whole bulletproof work done, programmer, and X spring swap. Just did some work on my boat, so trying to figure out how to tackle this issue now! Catching Grouper hand-over-fist...but ain't gonna be if the tow-vehicle starts actin up!

Thinking about tackling the plugs first as mentioned in the video below. Seems he mentions that is the problem most of the time. Anyone know of a walk-through to do this?
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Old 07-28-2012, 06:21 AM
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It is also common to have the stc to fail on your MY, either partially or full failure. Some have cracked the hpop housing upon failure. There is another guy on youtube that runs videos that are step by step, (mastertech) or something like that. The video you posted is from a guy that some believe is a goof, although he has some factual info, just saying. With a monitor, you can read icp while cranking and running to look for inconsistencies, and pull codes. Without it you are throwing parts at it, if I was throwing parts, it would be an stc, stand pipe oring, and dummy plugs.

Edit: actually I believe there are updated standpipes.

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Old 07-28-2012, 07:07 AM
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Thanks... I am considering getting the Edge Insight CS. Figure I've wanted one, so if it helps troubleshoot this problem it's more justification. So will the Edge help me differentiate between STC or the o-rings?
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Old 07-28-2012, 07:13 AM
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Quote:
Originally Posted by fishintheobx View Post
Thanks... I am considering getting the Edge Insight CS. Figure I've wanted one, so if it helps troubleshoot this problem it's more justification. So will the Edge help me differentiate between STC or the o-rings?
No, most would not, just change the orings because of that. Double the work if oring s dont work. I have the edge cts. Well worth it. A bad icp sensor is a possibility also. There is a hpop leak test you can google before you tear into it that may help you determine between orings and/or stc, and icp.

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Old 07-28-2012, 08:56 AM
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DO NOT I REPEAT DO NOT TAKE YOUR TRUCK TO BILL HUIT OF POWERSTROKEHELP IN BUEDORD GEORGIA.
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Old 07-28-2012, 10:29 AM
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before you condemn your STC fitting you have to take a look back at the high pressure oil pump cover. Do you have a cast aluminum (silver and flat) or cast iron (rusty) cover?

The early 05 excursions used a carry over 04 engine(cast iron cover) and did not use the same high pressure pump or branch tube design. Just because the vehicle was built in nov 2004 doesn't tell anything. You have to actually look at it. If you have an aluminum cover you have the STC that is prone to failure

Last edited by sinner6.0L; 07-28-2012 at 10:54 AM.
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Old 07-28-2012, 10:38 AM
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When my FICM was on the way out, this is what mine sounded like.
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Old 07-30-2012, 07:11 AM
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Thanks for the great feedback. Funny thing is after I shot this video on Friday, I never had the problem the rest of the weekend. Of course, now I only shut it down if I have to!!

Quote:
Originally Posted by southend View Post
No, most would not, just change the orings because of that. Double the work if oring s dont work. I have the edge cts. Well worth it. A bad icp sensor is a possibility also. There is a hpop leak test you can google before you tear into it that may help you determine between orings and/or stc, and icp.
Thanks... I'm going to tear into the o-rings as soon as I get some time on my hands. The truck is not a daily-driver as I work from home mostly, so it may have to wait.
Quote:
Originally Posted by sinner6.0L View Post
before you condemn your STC fitting you have to take a look back at the high pressure oil pump cover. Do you have a cast aluminum (silver and flat) or cast iron (rusty) cover?

The early 05 excursions used a carry over 04 engine(cast iron cover) and did not use the same high pressure pump or branch tube design. Just because the vehicle was built in nov 2004 doesn't tell anything. You have to actually look at it. If you have an aluminum cover you have the STC that is prone to failure
I think it is a cast-iron cover on there. I just went out and climbed up on it and looked down under the turbo with my light. It appears to be cast-iron, but everything back there has a haze of oil / dust on it. Tough to tell. Truck is M.Y. 2005, built 11/2004, and Navistar sticker on valve cover has a 2004 indication.

Quote:
Originally Posted by F350jim View Post
When my FICM was on the way out, this is what mine sounded like.
Funny you mention this because I was starting to think FICM as well. The truck has had what I've termed a "real lazy starting issue" for about the past month...cold or hot. It used to catch ahold real strong and go right to idle. Now it's like it starts coming out of the grave. Video below was taken this morning, 87 degrees OAT, and after sitting for 24 hrs.

Going to shop for my Edge Insight today and see if I can get a good price. Seems that is going to be my first stop for anything...

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