Greetings, just purchased a 93 Camry 4 cylinder with 184K miles on it from the original owner. I live in the Dallas, Texas area.
The AC works very good (most of the time). The original owner said freon (R12) has never been added to it.
The AC blows very cold (amazingly cold) but sometimes the cooling efficiency starts to decrease and only blows fairly cold air. I notice the decrease starts on the left vent in the center of the console first.
I looked at the glass on the ac receiver and it looks kind of foamy.
Could it be:
1) just needs more freon (luckiliy I still have 4 cans left from the early 90s) 2) or could the evaporator be freezing up with ice crystals? It seems like I dont' see as much moisture leak off after driving the car for a long period as I would expcet. Maybe the drain hose is clogged? 3) or something else?Any help is very much appreciated.
Thanks, Les