I have a97boxster that seems to be having an issue with the Transmission. As I am slowing down and the car starts to down shift (Auto) as the car goes into 3rd, if the RPM's are up or I start to accelorate the car jerks into gear. It is a seious jerk along with a loud noise as if I slammed it into another gear. If anyone can help it would be appreciated. Thanks

 

I would start by having your trans. fluid changed and see if that helps.