Poor performance after EGR, latest flash...

[mudncj]

First time poster, and looking for some help. Running an 06 F350 CC LB DRW. Just took it into dealership for an idling, operation problem, and they found and replaced a bad EGR valve. Also, I had them reflash to the latest program, as my injectors still cycled for the 30 seconds.
To make a long story longer.... the truck now seems less powerful, the trans feels like it is missing its shifts, and I have dropped from 12.75 to 11.75 MPG. What gives?
Has anyone had any problems like this with a new EGR, or the new flash?
Dealer of course knows nothing, but the truck is not the same.
Any help, suggestions, will be greatly appreciated.
Steve

[Lonno]

I lost nothing on the refalsh. Might ask the dealer to double check, or maybe run a live diagnostic test drive to better understand what you're experiencing.

[mudncj]

Thanks for the help. Will give them a call and see if they are willing to do that. They didn't seem too interested in checking it out as it is still warranty work. Need every bit of mileage I can get though. We all can.

[03f250stroke]

Originally Posted by mudncj

Thanks for the help. Will give them a call and see if they are willing to do that. They didn't seem too interested in checking it out as it is still warranty work. Need every bit of mileage I can get though. We all can.

aint that the truth!