Transmission overfilled

The other day i had a shop replace on of my transmission cooler lines because it was leaking. Today i noticed that the car felt a little sluggish so i decided to check the fluid levels. Tranny fluid was about an inch over the mark on the dipstick and yes i checked it according to the manuals instructions. could this have caused any problems?

anyone?

How are you checking the fluid level?
Like engine and transmission good and warmed up park engine running?

engine and tranny at operating temp, 3 seconds in every gear, checked dipstick.

engine and tranny at operating temp, 3 seconds in every gear, checked dipstick.
May or may not be the problem but.
It would be a good idea to get it at the right level.

well we pulled some of the oil out now its at about 1/4 inch over the mark.. odd thing is my gas mileage went from 22 to about 16 today on the interstate was a little windier today but not that much.