Quote:
Originally Posted by MBeige
Tangofox, as far as I know it does engage. Would it be possible that it doesn't engage during warm ambient temps?
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The reason for my question has to do with a possible malfunction of the evaporator temperature regulator. It has nothing to do with the engine temp, although it can manifest in a way that would make it appear that it does. The evap temp regulator is designed to prevent the evaporator from freezing, so it shuts the compressor off at about 36 degrees. But a defective regulator can trip at a much higher temp, such that the a/c will work fine for a few minutes, then trip off. At which time it starts blowing ambient air, as the compressor will have disengaged.
Quote:
Originally Posted by MBeige
I read that the aux fan has two inputs, engine temp and refrigerant pressure?
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What is the year of the vehicle in question? (The "refrigerant pressure" aspect is probalby wrong in any case.)