EGR unplugged, what's it doing??? - Ford Powerstroke Diesel Forum
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Old 11-12-2007, 11:51 AM
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EGR unplugged, what's it doing???

I un-plugged my EGR electrical plug the other day by the advise on this forum...my question is, with it un-plugged what is it not doing now that it was doing before,and what is the advantage?? It is running fine with no CEL on, it's a 2004 model...... I have heard that with it unplugged the valve should stay closed and the unburned gas fumes are simply going out the tailpipe instead of being "reburned" a second time.....Is this right? and if it is, what is the advantage to this over having the EGR functioning........
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Old 11-12-2007, 11:53 AM
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Unpluged its not opening and closing to allow the exhaust gasses to be recirculated.
The advantage is the valve won't get stuck open when it soots up causing alot of smoke and power losses.

Last edited by Clay Henry; 11-12-2007 at 01:05 PM.
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Old 11-12-2007, 11:58 AM
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I'm still getting the studdering from time to time. I havent unplugged my EGR yet but plan to so as soon as I get more info on what it may cause if unplugged.

I did however ask a local Ford diesel mechanic about it and he said there had been a technical bulletin or some sort of thing like that regarding injectors needing to be replaced for faulty workmanship or because they are defective he did say it was only in the 6.0 2004 motors though.

Have any of you heard about this and could it also give the same symptoms as a stuck egr valve. I had the egr valve cleaned by Ford around two to three months ago could it be clogged up this soon again?

I have removed the Bullydog program and it is back to stock settings.

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Old 11-12-2007, 12:53 PM
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Yep, it doesn't take much to coke up an EGR, especially with a programmer. Not sure about the injector problem. Maybe one of the techs can chime in...
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