Hey all, havent posted as i havent had a XC in a while. A friend got a 2004 XC90 (turbo 5cyl) for $1500, and we are fixing it up.

We are experiencing a random transmission problem I cannot pin down. Some trips everthing acts normal, others, when leaving a stop it wont shift out of 1st or second and revs to redline. He manual mode shifts and then it acts normal.

I scanned it with VIDA and theres no trans codes in the system. Theres a random evap code, a code for the rf wheel speed sensor and lost comms with the DEM. No transmission or engine error codes.

With my BMW i can release all memory and adaptations so the trans can relearn, is that possible with VIDA? Its such a random problem and does not leave a trace. We will do a drain and fill on the trans, the dipstick shows the fluid looking ok.

Anyone with some advice?