01 SS problem please help!!

[02NHRAtransAm]

Here is the laydown... i own a 2001 a4 SS. When the car kicksdown into second gear (when trying to get on a freeway or pass a car n such) everything is fine until it goes to shift into third. Once the vehicle shift into third it falls on its face, no check engine lights, nothing comes up with a scanner, it is really weird. If u floor the vehicle from a dig all is well. It will shift and perform through every gear flaswlessly until u let off. It is only when up shifting from a kick down back into third. The vehicle feels as if all of a sudden u have let off the throttle and wants to go no where. If i back pedal on it a couple times it suddenly wakes up and kicks back into the power.... This whole situation leaves me puzzled

The car is bone stock with only a lid and a k&n... i have tried cleaning my

MAF thinking that could be a problem, as well as the entire air intake sysltem.

I have also changed the inline fuel filter thinking it may have been plugged still no results.

Has anyone ever heard of this problem or had a simmular encounter

Thank you for your time.... please let me know

[SeVeReDiStOrTiOn]

Is it actually going back into third or is the tranny just slipping

[02NHRAtransAm]

no it goes into third its just like the car has no power once it shifts.... then if i backpedal a little and play with the throttle it wakes back up and takes off again...