Navistar 6L Powerstroke problems
Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 236
From: Saratoga Springs,UT
how was the screen on the IPR Valve???
Your symtoms being that runs better with thin Oil vs running Bad on thicker oil Point to the FICM. When the FICM Poweer side fails it get low on power then it has a Hard time to Open/Close the Injector Spool Valve. This spool Valve Open/Closes the the Path for the HPO to Act on the Injector Plunger and the plunger drives the Fuel into the Cylinder.
It could also be Worn injectors
Scaning the truck is Highly recomended before teardown.
You can look at ICP and IPR% to verify HPO System Health for the Most part if you get Bad numbers when checking then you can Air Test to find leaks
Since your so far in a OIl Cooler R&R would be good
Your symtoms being that runs better with thin Oil vs running Bad on thicker oil Point to the FICM. When the FICM Poweer side fails it get low on power then it has a Hard time to Open/Close the Injector Spool Valve. This spool Valve Open/Closes the the Path for the HPO to Act on the Injector Plunger and the plunger drives the Fuel into the Cylinder.
It could also be Worn injectors
Scaning the truck is Highly recomended before teardown.
You can look at ICP and IPR% to verify HPO System Health for the Most part if you get Bad numbers when checking then you can Air Test to find leaks
Since your so far in a OIl Cooler R&R would be good
Fleet Owner
Joined: Nov 2003
Posts: 27,894
Likes: 3,613
I hear what you are saying (around $500), but the early HPOPs had a failure rate that would have me concerned about its longevity. It is 8 years old already. It woudn't be like you are changing out a NEW part (unless it has been replaced recently and you haven't mentioned it).
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
As far as the oil filter and filter cap are concerned, they are definitely NOT the OEM style, from what I could see in the background pics you posted in post #2. So the next course of action is to purchase a new original filter and filter cap as well.
Now, regarding your original concern, what exactly led you to disassemble the engine apart to the extent you have posted in your pics?
Posting Guru
Joined: Oct 2011
Posts: 1,076
Likes: 1
From: Las Vegas, Nevada
[quote=m-chan68;12257587]According to the pictures you've posted in posts #2, #3 and #4, you definitely have what appears to be a 2004 model year F-350. I didn't catch the last five digits of the VIN or I would've been able to run it, to see the exact build date of this truck./quote]
Mike,
Of topic question. How can you tell it's an 04, F-350. If you look at the VIN I understand, but you base on post 2,3, and 4 and determine that it's an 04 F-350 all I can say is WOW!
Mike,
Of topic question. How can you tell it's an 04, F-350. If you look at the VIN I understand, but you base on post 2,3, and 4 and determine that it's an 04 F-350 all I can say is WOW!
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Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
The '3' in the VIN denotes an F-350. The 'P' denotes it's equipped with a 6.0L diesel. And the second '4' of the VIN denotes it's an '04 model year.
Posting Guru
Joined: Oct 2011
Posts: 1,076
Likes: 1
From: Las Vegas, Nevada
I based it off the sixth photo down, in post #3 of the VIN. What I was able to read was 1FTSW31P44EA..... and I missed the last five digits.
The '3' in the VIN denotes an F-350. The 'P' denotes it's equipped with a 6.0L diesel. And the second '4' of the VIN denotes it's an '04 model year.
The '3' in the VIN denotes an F-350. The 'P' denotes it's equipped with a 6.0L diesel. And the second '4' of the VIN denotes it's an '04 model year.
I even misses the aftermarket oil filter cap when looking at the fuel filter housing
Thread Starter
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Post Fiend
Joined: Oct 2005
Posts: 5,242
Likes: 0
From: Kiev, Ukraine
some success! After taking apart all the high pressure oil system and cleaning all this stuff with jet fuel and solvents oil pressure fault codes dissapeared, engine starts.
Powerstrok 6.0 - YouTube
But runs a bit rought. Sometimes ECM trhrows wierd fault code P134B. And I can see that engine load is too high, about 36% at idle, so I sugest worn injectors.
Any tips gentelmen?
Powerstrok 6.0 - YouTube
But runs a bit rought. Sometimes ECM trhrows wierd fault code P134B. And I can see that engine load is too high, about 36% at idle, so I sugest worn injectors.
Any tips gentelmen?
Fleet Owner
Joined: Nov 2003
Posts: 27,894
Likes: 3,613
How do you know the HPOP is good???
Give us some readings .............. ICPvolts, ICP pressure, IPR duty cycle, FICM volts, etc.
Any parts changed out?
I don't doubt that the injectors could "take it on the chin" with a neglected oil system.
Give us some readings .............. ICPvolts, ICP pressure, IPR duty cycle, FICM volts, etc.
Any parts changed out?
I don't doubt that the injectors could "take it on the chin" with a neglected oil system.
Tuned
Joined: Jun 2011
Posts: 259
Likes: 0
From: West TN
I think what these guys (who are 6.0L experts, you've hit the jackpot here) are trying to say in a nicer way, is
STOP
trying to use your previous experience with other diesels
You need to give them the readings they're asking for from the monitor so they can help you actually troubleshoot this engine, it's NOT like other diesels!
STOP
trying to use your previous experience with other diesels
You need to give them the readings they're asking for from the monitor so they can help you actually troubleshoot this engine, it's NOT like other diesels!