29 PSI - Wrench light - Overboost?
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Elder User
Joined: Aug 2003
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From: Québec
29 PSI - Wrench light - Overboost?
Hi, while pulling for about 10 second uphill at 29 PSI turbo on scangauge, the wrench light came on, limp mode, no codes, EOT 205, Water 197.
Could it be an overboost of the turbo? What limits the turbo?
Could it be an overboost of the turbo? What limits the turbo?
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
My '06 will hit 29# boost. I have the original '06 strategy.
If you are getting an overboost at 29#, then you probably already have the lastest strategy with engine protection.
If you got the wrench light, there had to be a fault code stored. How did you attempt to read the codes?
At this point, diagnosing this as overboost would be nothing but a guess.
If you are getting an overboost at 29#, then you probably already have the lastest strategy with engine protection.
If you got the wrench light, there had to be a fault code stored. How did you attempt to read the codes?
At this point, diagnosing this as overboost would be nothing but a guess.
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Elder User
Joined: Aug 2003
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From: Québec
I do not know. But in march 2011, I went to three Dealers on my way down to Florida. They replaced the ICP that fixed the rough Iddle, the MAP sensor fixed the Wrench light and IPR fixed the cutting off on highway. May be they reflashed it, I do not know but they did all sort of test. I still have the bills, would it say it on the paper?
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Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
It might say it, or it might not. If they did the work under warranty, they are more likely to list it on the bill because they want to get paid for it. It would probably mention performing TSB 09-24-3.
Here is some reading on that:
https://www.ford-trucks.com/forums/9...-for-6-0s.html
The DTC for oil cooler efficiency is a newer one, and many code readers don't know how to handle it. But the code for FICM voltage and Turbo overboost have been defined for a long time, and are more likely to be recognized.
Your description of the issue sounds like overboost. We know it wasn't oil cooler efficiency because you were watching those temps. It does not sound like FICM voltage, because of when it happened. So it could be overboost, but it could also be something like excessive EGR flow or any number of things. You really have to know that fault code to have half a chance of figuring it out.
Here is some reading on that:
https://www.ford-trucks.com/forums/9...-for-6-0s.html
The DTC for oil cooler efficiency is a newer one, and many code readers don't know how to handle it. But the code for FICM voltage and Turbo overboost have been defined for a long time, and are more likely to be recognized.
Your description of the issue sounds like overboost. We know it wasn't oil cooler efficiency because you were watching those temps. It does not sound like FICM voltage, because of when it happened. So it could be overboost, but it could also be something like excessive EGR flow or any number of things. You really have to know that fault code to have half a chance of figuring it out.
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Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 26
From: Middle Tn.
It might say it, or it might not. If they did the work under warranty, they are more likely to list it on the bill because they want to get paid for it. It would probably mention performing TSB 09-24-3.
Here is some reading on that:
https://www.ford-trucks.com/forums/9...-for-6-0s.html
The DTC for oil cooler efficiency is a newer one, and many code readers don't know how to handle it. But the code for FICM voltage and Turbo overboost have been defined for a long time, and are more likely to be recognized.
Your description of the issue sounds like overboost. We know it wasn't oil cooler efficiency because you were watching those temps. It does not sound like FICM voltage, because of when it happened. So it could be overboost, but it could also be something like excessive EGR flow or any number of things. You really have to know that fault code to have half a chance of figuring it out.
Here is some reading on that:
https://www.ford-trucks.com/forums/9...-for-6-0s.html
The DTC for oil cooler efficiency is a newer one, and many code readers don't know how to handle it. But the code for FICM voltage and Turbo overboost have been defined for a long time, and are more likely to be recognized.
Your description of the issue sounds like overboost. We know it wasn't oil cooler efficiency because you were watching those temps. It does not sound like FICM voltage, because of when it happened. So it could be overboost, but it could also be something like excessive EGR flow or any number of things. You really have to know that fault code to have half a chance of figuring it out.
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
If it is warranty, they are not required to itemize for the customer. I also had the oil cooler/egr cooler replaced under warranty, and they itemized some of it, but not all. Interestingly, they did not bother to reflash me, and so I am still running the OE flash.
If you can review your OASIS report at the dealer, it is more likely to show whether a new flash was performed.
I would think that with 3 different dealers trying to figure out problems during a single trip, one of them would have flashed it. Sometimes it seems like they do that whenever they are not sure what else to try.
If you can review your OASIS report at the dealer, it is more likely to show whether a new flash was performed.
I do not know. But in march 2011, I went to three Dealers on my way down to Florida. They replaced the ICP that fixed the rough Iddle, the MAP sensor fixed the Wrench light and IPR fixed the cutting off on highway. May be they reflashed it, I do not know but they did all sort of test. I still have the bills, would it say it on the paper?
Fleet Owner
Joined: Nov 2003
Posts: 27,911
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The Scangauge does not read all of the codes. Try an autoparts store for reading the codes - it might help.
Overboost could be a sensor issue (EBP or MAP again) or a sticking turbo (inlet guide vanes).
Chances are pretty good you were flashed to the latest software release.
An SCT tuner can read that software version.
How handy are you mechanically (ie pull and clean the turbo)? You might try pulling the MAP sensor hose and the EBP tube to see if they are plugged.
Overboost could be a sensor issue (EBP or MAP again) or a sticking turbo (inlet guide vanes).
Chances are pretty good you were flashed to the latest software release.
An SCT tuner can read that software version.
How handy are you mechanically (ie pull and clean the turbo)? You might try pulling the MAP sensor hose and the EBP tube to see if they are plugged.
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Elder User
Joined: Aug 2003
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From: Québec
I will check the MAP. One thing I do not get is how the turbo works. Overboost, does'nt it mean it boost too much? To me it would mean it is a great booster!!!, but ... looks like it does'nt work this way.
As for mechanic, I can read and use wrenchs, it is just that I have to get minded to do it
As for mechanic, I can read and use wrenchs, it is just that I have to get minded to do it
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