My 3.0 was diagnosed with "bad EGR flow". I took the EGR off and cleaned it (wasn't that dirty/not to much carbon build up) and it seemed to work when bench tested the old fashon way, by sucking on it.

My next guess is the control solinoid. I"m hoping the EGR port into the manifold isn't clogged.

Does anyone have any insight on this problem? I'd appreciate any help/hints. Thanks.

 

No mechanics on board?

 

Have you used Seafoam before?

 

I've heard of Seafoam, but I'm not familiar with it at all. Can you explain more?

 

Its either a egr or dpfe sensor, usually its one or the other.

The sensor is about $50

 

What is the dpfe sensor? I took the EGR out and cleaned it and it seems to be working. I replaced the egr control solinoid and it seemed to help...slightly. I'm thinking there may be more than one problem with the system. I guess I should just replace the EGR even though it seems to work. Maybe the plunger isn't seating right and not making a good vacuum seal.