So, I thought it was rough shifting but after driving on the highway today, I realized that 1st 2nd and 3rd gear are fine. It is when shifting into 4th(automatically or tip tronic) that it struggles. Once this "kick" or "pop" I feel happens, the car is stuck in 3rd gear. When exiting the highway, the car stays in 3rd, even as I continue to drive around town. When coming back on the highway, the car will not rev RPM wise any lower than 2,500, and likes to stay at around 3 thousand. When properly operating the car does 70mph at around 2,100 RPM. What is wrong here? When it does get stuck in 3rd, if I put it into Tip tronic, the car will not shift up or down. Just stays in 3rd. Hope someone can help....This does not happen 100% of the time, but is fairly often. 1st gears shifts to 2nd at around 10 MPH. 2nd to 3rd at around 20 MPH or so. Thanks

 

Have the codes pulled and see what they say.