Ok i have a 2000 galant es and had my belts tighted but i noticed after a couple of days i had left my air on 1 and when i went to start it in the moring it made that screeching squeling sound coming from the belts? engine? when i press on the gas it gets louder and then gose away... Any ideas? I have a new PS belt and a new timing belt, are there any other belt that i sould replace to get ride of the problem ? and is it expensive? thanks for your help. :?: