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K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2992
Experience:  ASE Certified Technician, Associates Degree in Automotive Technology, 15+ years in the trade
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I have a 2008 Chevy HHR 2.2l with and A/C problem. The

Customer Question

Hi i have a 2008 Chevy HHR 2.2l with and A/C problem. The compressor is kicking on and off and the pressures are set where they need to be. About 30 on the low side and 170 on the high side. Out of the vents i have warm air coming out. Is there a restriction in a line or what do you think the issue could be? Could it be a plugged orifice tube?
Submitted: 1 year ago.
Category: Chevy
Expert:  K. Wiggins replied 1 year ago.

Hello, what's the outisde air temperature and did you measure the pressures with it at idle speed?

Customer: replied 1 year ago.

70 degrees outside. and the pressures were measured while at idle

Expert:  K. Wiggins replied 1 year ago.

Thanks, ***** ***** be around 35-40 lo and 145-160 hi at that temp. I would suggest replacing the expansion valve, it sounds like it's malfunctioning and causing the low side to go low enough for the low pressure switch to cut out the compressor. I'll post info on how to swap it below.