Quote:
Originally Posted by tangofox007
As I understand the operation of the ACC, the temp is regulated by varying the flow of coolant through the heater core, not by cycling the compressor off and on. It is my belief that the compressor should run continuously except in the EC and OFF modes, where it does not run at all. In other words, if the normal, bi-level or defrost modes are selected, the compressor should be engaged regardless of the temp selection.
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Perhaps you are thinking of a later style ACC system... I am pretty sure his is still a cycling clutch type... the primary control being the ' operator controlled variable temperature ' on the dash...
A later style...with an accumulator and orifice would typically have the compressor on all the time...