Had it done and the mpg's have gone down. I normally get 14.9 overall hand calculated, now it seems to be around 13.2 overall..........Anyone else see the same?

 

Most of the posts I've read mention better fuel mileage after recall and latest flash.Winter fuel and cold weather decreases fuel mileage.

 

I just had recall done, I already had AU prior, now i got the av. Going to South carilona from dallas tuesday. Will keep ya posted on mpg loaded and difference in tranny shiffting.

 

I drove from Phoenix to Las Cruces and back over Thanksgiving weekend.
Okay going there against head winds on I10 all the way 15.9 calculated and overhead. Coming back (wind psuhing) 18.8 calculated and 19.1 overhead. Cruise set @ 78 both ways, no load, bone stock.
I have had no changes in mileage and/or transmission after recall reflash and O2 sensor module replacement. Truck still runs as great as before.

 

Keep in mind people that anybody who has gotten the recall before nov 15 WILL NOT have AV flash

 

I'm having the recall done Thursday at the dealer. What's the AV flash?

 

has to do with harsh 2 3 shift

 

I found a truck and test drove it the other day and didnt notice any harsh shift, but I didn't drive it that far and get up to any high speeds. Anyways, when I go back and look at the truck again, how can I tell if it has the recall done and the newest flash? Will there be a sticker on it somewhere?

 

Had mine done in Buffalo , got the recall notice day before leaving, light came on in NC drove the beast the remaining 760 miles. I have noticed a drop in mileage, about 1 over a 4300 mile trip. the worstmileage was headed back because of the strong head wind.
No difference in shifting, as far as I can tell.

flgc