What causes the air to blow hot from a 1992 Toyota camry?

I have a 1992 toyota camry. I had the air conditioner serviced and it was blowing cold air. The next day it was hot air. Does it have a leak and if so where could it be leaking fromWhat causes the air to blow hot from a 1992 Toyota camry?Is it blowing HOT hot, like the heaters on?

If so, it sound like the air diverter in the air box under the dash is selected to run the air through the heater core (like the temp selector is pushed to hot). I'm not sure if this door is vacum-operated on your car or not, but look for a small vacum hose that might have some loose. Either that or there's a mechanical linkage from the knob to the door flapper that came apart. Look under the dash for a little cable end that night have come loose.

If it's blowing warm, but not hot.....

maybe the a/c compressor's not kicking on. If it's NOT, then it may have lost its charge due to a leak in the system. You say you had it serviced, but you didn't say what was wrong with it, or what was done. You'll have to have the system leak checked to find any leak and then get it repaired. If it's an R134a system, you can buy refridgerant with leak detector (red dye) at your local auto parts store. If it's an older R12 system, don't try to mess with it yourself. There could be legal repercussions if you vent R12 without the proper license and recycling equipment.What causes the air to blow hot from a 1992 Toyota camry?You can buy a special kind of freon (the stuff that makes the air cold) that will glow under a blacklite. Run the blacklite freon through your system and once the air is hot again and the freon has leaked out, take a blacklite and examine the glowing areas under the hood. This is the technique that all the service shops use. I had to do this last summer on my car. Hopefully this will help you out.

dean and deluca