K Yukon/Denali 4WD V8-5.7L VIN R (2000)
Condenser HVAC: Testing and Inspection
Cooling Insufficient - A/C Inoperative
Steps 1-10
Steps 11-13
The compressor is a scroll compressor that matches the air conditioning demand by changing the compressor stroke, instead of cycling the compressor
clutch. A capacity control valve located in the compressor senses the low side pressure and causes the compressor to adjust to A/C cooling demands. The
compressor always runs and the system does not cycle. However, the compressor may cycle if the cooling load is not reduced enough by the capacity
control valve.
