Ok i'll take a shot at this one. First off, not being negative but get ready for a flurry of crap t0o start to fail. But you got us here for that. Any who, when you say "you can't change the vent position" I would guess that you are referring to your DCC (dual climate control). Let us know so we can better assist you. Actually I spent over 2 hours looking for and then removingthe actuators from some Buick Regals. I am having a hellofa hellofa time replacing the actuator so I am wondering if 1. this actuator is even going to work and 2. if the actuator is even the problem. So I would suggest you help us to help you by giving more information. But then again I could be talking about a totally unrelated problem. Alright I'm finished ranting. HELP!!! BTW the actuator I'm talking about is right behindyour glove compartment. If yous is like my 99 GTP, all you have to do to get behind there is open your glove box and squeeze together the sides of the side walls and pull backward to gain access. Hope this helps.