Yeah, I know, another EGR question - Ford Powerstroke Diesel Forum
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Old 09-18-2009, 04:47 PM
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Yeah, I know, another EGR question

I know, not another egr question..right? well, I've been having trouble with the EGR code that says insufficient flow 4010 I believe. So I've cleaned the valve, put new gaskets on it and put it back on. The only time I have problems is when I'm driving on the high way at 70 mph for extended periods of time and thats when the engine light comes on. The trucks seems sluggish and like it doesn't want to go. When driving back and fourth to work, with max speed of 55 the light will never come on, only on the highway. What else is involved in the EGR system? How do I tell if the valve is defected? Or where else can I look/what can I do to try and fix the problem myself before I take it to the dealership? It's an 03 6.0. I've read over tons and tons of posts but can't seem to find what i'm looking for. What should I do?
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Old 09-18-2009, 05:08 PM
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cleaning the valve is an absolute waste of time if the valve is bad , p0401 is a insufficient flow code , egr valve really doesnt play a part in that code , and are you running an afe intake
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Old 09-18-2009, 05:16 PM
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i'm not sure what afe intake is, but everything is stock. So is there a way to inspect the valve to see if it's bad? thanks for the help.
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Old 09-18-2009, 05:18 PM
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afe is an aftermarket intake , if its stock then you dont have one then, no way to visually inspect valve unless its just stuck open, but then you would get a different code than that , so this truck runs fine but you are just getting the code right
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Old 09-18-2009, 05:28 PM
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For the most part it runs fine, except when I'm going about 70 for a stretch of time, it sometimes feels a little sluggish, like it doesn't want to go. I'm not sure it there is any correaltion between that and the egr?
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Old 09-18-2009, 05:38 PM
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egr is only activated at highway speeds for the most part , you may have a bad valve , and its not operating when it should and is when it shouldnt
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Old 09-18-2009, 05:41 PM
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So the next question, get a new valve or get tuner or programmer and shut the dang thing off?
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Old 09-18-2009, 05:42 PM
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thats another waste of time, like i said if the valve is bad , boost pressures can open it regardless of what software is there , put one in it
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Old 09-18-2009, 05:43 PM
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Thanks a lot brother
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Old 09-18-2009, 05:45 PM
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anytime
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