A/C problem

[crazytglo]

When i have my ac on it will blow cold then blow luke warm then back to cold again. Any idea whats causing it?

Thnks guys

[Vahomboy]

When the car is idling, a/c on, hood up, do you hear the compressor click on and off? If so, you probably have a low charge from a small leak. You might could just simply add some refrigerant (134a).

[Wolters]

i have a similar problem in my TA every once in a while it will blow luke wark air for a few seconds and then back to cold...

anyway i have a question... what refrigerant does my 94 T/A use 134a???? or is it the older stuff

[Chris 96 WS6]

How luke warm are we talking? It is normal for compressors to cycle on and off, that's how they maintain pressures and keep from freezing up.

[crazytglo]

Like pretty warm. Almost heater warm, but only for a few seconds.

[MaDmaXXX]

sounds like your system is low on freon. the low pressure switch is turning the compressor off to prevent catastrophic failure. go have your system checked by a reputable shop. If you try it yourself and add too much freon your system will likely blow warmer than it did. Older R12 systems you could get away with adding a few ounces and calling it good. newer systems are way less tolerant of overcharging.