No AC

By richardcoghlan
July 13, 2005 in Gen III & Gen IV V8 Engines (LS-Based)

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richardcoghlan

Posted July 13, 2005

99 Z71 I have no power at the compressor, crossed both high and lower pressure switchs, changed out the dash controls, checked fuses. Everything works just no power getting to the clutch. Found wire coming from vcm shoulbd be ground is open?????

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- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 4 hours ago
  
  And there aren't any "bellows". There are solid plastic doors the actuators move, which largely seal just by themselves, and then have a strip of foam around the edge to better seal the door. The foam does deteriorate over time, but this is unlikely to be a significant cause of the problem.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 4 hours ago
  
  are the heater controls set for hot or cold air? If it's set for hot, and say, to get air from outside the cab (vs recirculated air), even w the fan off, air will get pushed through the hvac system, over the heater core and into the cab. Switching it to cold will reduce the temp to whatever it is outside. Switching to recirculate mode (which may mean switching to vents or whatever, read your owners manual), will reduce the amount of airflow through the hvac system.
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