[g2driver]

Is it the original tranny?, beacause sometimes when we replace a tranny with a j-yard one, a solonid will be "sticking". Drive it for a bit, if it still is happening id get the solonid replaced. If your motor is the 2.7 id just sell the car. The check engine light will go on probably beacuse the computer is telling the transmission to shift and its not beacuse the solenoind is stuck. Your not going to ruin anything driving the car like this thou. I might get the computer codes checked too. Im pretty sure autozone will do it free.

Matt