Your A/C has leaked out its freon. The hissing sound comes when the freonis below a certain level. The fact that it is not cooling is a tell tale sign that the freon is low. Unfortunately you have R12....If you had 134a, it'd be no big deal, just go to target/walmart get a few cans and charge it back up. As it stands, you'll need to find a shop, get the leak scoped , fixed, and then recharged. If its the dreaded evaporator core, you may as well just trash the car and get another. A 91 300E ain't worth the $2500 MINIMUM that it'll take to repair the A/C. Heck it's probably not worth(Blue Book) the $250 it'll cost to get the leak diagnosed........
11-14-2003, 02:31 PM
Hybrid Mode
