AC unit on and at random

Asked by Jul 11, 2016 at 11:15 AM about the 2005 Chevrolet TrailBlazer EXT LS 4WD SUV

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

2 Answers

28,025

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.

20,300

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

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