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1999 GMC Sierra 1500 Question: 1999 gmc sierra 1500 v6 a/c clutch engage all the time

 

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El Balason, 4.3L V6, Fremont, NE, August 10, 2013, 22:32
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my a/c clutch is engage all the time like when i have the HVAC it there off or i on plug the high or low pressure switch the clutch it still engage but it just turn off when i unplug the a/c relay switch or shut off the truck

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