EGR problem
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Joined: Jul 2004
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EGR problem
97' F-150 4.6L. I keep getting a check engine light with an EGR flow problem code (Autozone). I've replaced the EGR sensor and the valve and am still getting the error code. Any suggestions.
Senior User
Joined: Jan 2004
Posts: 227
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From: Tulsa, Oklahoma
You probably need to go ahead and remove the throttle body
housing and clean the egr ports where the valve connects.
The tube coming off the valve gets dirty too, but not like as bad as
the ports do. I would bet money the ports are completely
closed up with carbon buildup. Do a search on threads explaining
this condition. It happens almost without fail to 4.6, mine is a '97 4.6,
cleared the code by cleaning the ports.
housing and clean the egr ports where the valve connects.
The tube coming off the valve gets dirty too, but not like as bad as
the ports do. I would bet money the ports are completely
closed up with carbon buildup. Do a search on threads explaining
this condition. It happens almost without fail to 4.6, mine is a '97 4.6,
cleared the code by cleaning the ports.
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