I'd check for applicable hvac trouble codes. Around here, some of the national brand autostores will check codes for free. I'd want to check that compressor is engaged, but, might be hard to do going down the road. Possibly you have an actuator problem, under the dash.
To dig deeper into diagnostics, you may need a scanner that can communicate with the hvac. Some of the others may have better info?
Wednesday, August 5th, 2015 AT 1:33 PM