New member with a/c problems 2009 2.4L
Why would you take a car over 15 years old to a dealership, for other than recalls? They don't know anything the guy down the street doesn't, maybe less. Dealer mechanics only know how to replace parts, they struggle with proper diagnosis.
Based on his previous post stating that he put in less than a can of refrigerant, I would say it is undercharged. R134a comes in 12 oz cans. The HHR system takes 14 oz. High side pressure should be over 200. He said his was 180.
Need to get a read of the module and see why it's not grounding the relay. Do you have a scan tool that can read the datastream?


