EGR Question.
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Junior User
Joined: Aug 2006
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EGR Question.
Ok, I am going to "pull the plug" my EGR in 2006 PSD. I have gone over some of the threads regarding this but do not recall anyone doing it that has a 2006. Does anyone think this is a bad idea... please advise if I am doing something that is not needed or should not be done to the 2006. Looks like it might be an old worn out subject for some of you guys... sorry.
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Joined: Jan 2006
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From: Las Vegas
I hope there's no reason not too, I accidently knocked mine off the other day (2007 CC 250). Ofcourse I get to see the pretty orange engine icon all the time, but Id rather that than a percentage of soot and other assorted crud going from the exhaust into my nice new clean engine 
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From: Lowsyana
dentaldave...What are you wanting to achieve by disconnecting the EGR? I don't agree with unplugging it at all because you have a 50/50 chance of it being open or closed. You are not going to really gain anything unless you completely remove the system and weld a plate blocking it off. I don't recommend that either since you will most likely void you warranty. You can purchase an SCT programmer from Innovative Diesels and they can turn the EGR function off for you, but then you are running a tuner. I've run mine with EGR "ON" and "OFF" and can't tell any differences anywhere.
Just run Stanadyne Performance Fuel Additive or Ford Fuel Additive(same as FORD) or run Diesel Kleen Grey or White. You might as well get used to EGR's because they are on everything and I'm sure they will play a more important part in the newer 6.4 PSD's coming out in 2008.
Also keep idling to a minimum or setup the High-Idle mod (Tech- Folder) if you need to idle for long periods several times per day.
Just run Stanadyne Performance Fuel Additive or Ford Fuel Additive(same as FORD) or run Diesel Kleen Grey or White. You might as well get used to EGR's because they are on everything and I'm sure they will play a more important part in the newer 6.4 PSD's coming out in 2008.
Also keep idling to a minimum or setup the High-Idle mod (Tech- Folder) if you need to idle for long periods several times per day.
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Food for thought: I talked to a Ford Diesel mechanic yesterday and he said that my 10K mile old engine had a very clean EGR valve and just recommended to keep the low RPM idling to a minimum and it would prevent any frequent issues with the EGR clogging. I run the high-idle mod on mine - I guess it helps!???
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I tried it on my '06 and plugged it back in. No noticeable gains, mpg stayed the same and boost would not go past about 20 psi. 
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Ok, Thanks for the reply(s) This is a great Forum! Sorry I am always "asking" and not "informing". Sounds like leaving the EGR plugged in and Running High Idle with Fuel Additive is the way to go. Little concerned today... it is raining and my 250 is getting wet...I will find a way to cope.
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Senior User
Joined: Jan 2006
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From: Las Vegas
I disconnected mine after reading the tech folder on this issue. I dont want to bother with switching on high idle, or no long idle periods or adding fuel "additives" every tank (BTW, how much does that add to the cost of each tank?). To each his own I guess, but it seems that this litlte device has been the root cause of many, many crudded up turbos and also a much shorter life expectancy of these engines. Just my reasoning
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From: Lowsyana
I hate to say, but every point you just made is not a good idea. The HighIdle mod last on the list, but running an additive is now very important with ULSD. If you do some research and see what Vloney,CanadaGuy and other Tech's have discussed unplugging the EGR is a bad idea and you gain nothing. You will never know if you unplug it in the Open or Closed position.
At the least plug it back in and run an additive. You will achieve much more by doing that than unplugging the EGR. Not to mention your dealer will know what you did when you start having problems.
Again...What are ya'll wanting to achieve by disconnecting the EGR?
At the least plug it back in and run an additive. You will achieve much more by doing that than unplugging the EGR. Not to mention your dealer will know what you did when you start having problems.
Again...What are ya'll wanting to achieve by disconnecting the EGR?
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Joined: Feb 2003
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Originally Posted by ffemtp
Food for thought: I talked to a Ford Diesel mechanic yesterday and he said that my 10K mile old engine had a very clean EGR valve and just recommended to keep the low RPM idling to a minimum and it would prevent any frequent issues with the EGR clogging. I run the high-idle mod on mine - I guess it helps!???
Seriously, I removed mine last week at 12K miles for a look. It didn't look too bad! I cleaned it up and put it back in. I'm in the 'leave it plugged in' camp. I believe it has a beneficial purpose (though not perfect).
Elder User
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From: Wickenburg, AZ
The newer 6.0s will close the EGR off when it detects an extended idle condition, so I am told. Extended idling and crap fuel seem to be the major things that cause the EGR to gunk up in the first place. I'd leave it.
I have a January 2004 build 6.0. It has the original EGR valve and turbo in it and I'm heading toward 31,000 miles. I still have whatever flash it was delivered to me with. All I do is keep an eye on the idle time, flip on the high idle when I need it, and I run Grey Diesel Kleen. The truck spends most of its time on the open road with trailers.
Incidentally, does anyone know if using that High Idle circuit knocks out the EGR when it's engaged?
I have a January 2004 build 6.0. It has the original EGR valve and turbo in it and I'm heading toward 31,000 miles. I still have whatever flash it was delivered to me with. All I do is keep an eye on the idle time, flip on the high idle when I need it, and I run Grey Diesel Kleen. The truck spends most of its time on the open road with trailers.
Incidentally, does anyone know if using that High Idle circuit knocks out the EGR when it's engaged?
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From: Lowsyana
Brett...Actually the HighIdle keeps the EGR opened and operational as if you were at normal driving speeds.
From what several of the FORD techs in the forum have reported is that crappy cheap fuel is a main problem and too much idling. The HighIdle mod greatly helps this. Also use of a fuel additive is best.
From what several of the FORD techs in the forum have reported is that crappy cheap fuel is a main problem and too much idling. The HighIdle mod greatly helps this. Also use of a fuel additive is best.
Post Fiend
Joined: Apr 2004
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From: Great State of Texas
Don't know if this means anything or not but, my EGR Valve was "knocked out 
" over 30,000 miles ago....and it still high idles when it was designed to.
To LVEILLON's question:
"Again...What are ya'll wanting to achieve by disconnecting the EGR?"
Zero shop time and longevity.
My EGR Valve was disabled immediately after being replaced when I got my last re-flash about 14 months ago. Therefore, I am extremely confident that it is closed.
Keep in mind that I have only advocated the disabling of the W. A. R. T. on '03 / '04 6.0 engine builds.
FYI: My truck never blows smoke...at any time. Clean as a whistle....But, I also use PowerService @ each and every fuel up.
" over 30,000 miles ago....and it still high idles when it was designed to.To LVEILLON's question:
"Again...What are ya'll wanting to achieve by disconnecting the EGR?"
Zero shop time and longevity.
My EGR Valve was disabled immediately after being replaced when I got my last re-flash about 14 months ago. Therefore, I am extremely confident that it is closed.
Keep in mind that I have only advocated the disabling of the W. A. R. T. on '03 / '04 6.0 engine builds.
FYI: My truck never blows smoke...at any time. Clean as a whistle....But, I also use PowerService @ each and every fuel up.