my girlfriend has a 95 gt and is having major idle issues with it. when she starts the car the car goes to about 2500 rpm and stays there. and when she gets to a curtain speed its hard to slow down. almost like the throttle is stuck or something but its not. we checked the throttle body and all that and its fine. i have no idea what it could be. i drive an eclipse and dont know to much about mustangs. is it a vacuum leak or something? if so what would it be comming from?