HELP stupid squeaking.
 

All of a sudden my 91 lx has been having some kind of chrip/squeak and its coming from under the hood. It only happens when im at the beginning of gears especailly 3rd. This is really pissing me off and I was just planning on selling the car, does anyone have any ideas of what it could be? I was thinking something with the pulleys or maybe the belts, it has been rather cold here in new york, Thanks.