Originally posted by jeffyscott:
I wonder...
When the a/c is on is the compressor running all the time or does it cycle on and off?
Also if you set the temp above the coldest position...how does it make the air warmer?
Cycles based on engine conditions and refrigerant pressure. Former in case of WOT or possible stall at idle, latter to ensure evaporator doesn't ice up.
Allows airflow to go thru' heater core, kinda like having your house a/c on (without thermostat) and opening windows to vary temperature. VERY energy efficient, yes?
p.s. On the question asked in topic, no difference. Max for quick cool down only when entering hot parked car.
