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Originally Posted by marc780
I have a couple wild guesses about this: maybe your evaporator is dirty (miniature radiator looking part on front of the real radiator), so if you clean out the dirt and bugs from between the fins it might improve the efficiency back to where it is supposed to be. Naturally i am talking about only an external cleaning here, not trying to clean inside the system.
Also the condenser (the part that the cold air comes from, inside the car i think) could be dirty too, and maybe the fins should be blown out with low pressure (30 psi) compressed air.
Or, maybe the system needs a recharge of refrigerant.
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Thank you!
Refrigerant first - I am not very conversant with the AC system. My mechanic was unwilling to touch the AC. He mentioned something about the refrigerant not being available or that it is banned. Is this trure? What kind of refrigerant does a 1990 use? I was suggested a conversion to R134 type. How easy is the conversion?
How do I clean the condensor? Where is it located?
When I bought the car (about 2 years ago), I found some foam pieces being blown out of AC vent when I started it - black and sticky, thankfully not smelly. Is this what you were talking about. Since then it has virtually stopped.
I checked the radiator - not much there - a few small stones, leaves etc - cleaned it out.
