AC unit on and at random

Asked by Garry N Dianna Jul 11, 2016 at 11:15 AM about the 2005 Chevrolet Trailblazer EXT LS 4WD

Question type: Maintenance & Repair

My AC unit on a 2005 TrailBlazer works when it
wants to it may work today it may not any
suggestions please thank you

103,425

KenF answered 8 years ago

low refrigerant can cause the compressor to cycle on/off. You can gamble on one of those cans of AC-Pro to add more refrigerant or take it to an AC shop and let them diagnose the problem and top off the refrigerant.

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65,590

firebird338 answered 8 years ago

Also have the orfice tube filter or being a 05 may have expansion valve replaced may be getting clogged.

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