Owners of 2012 Chevy Equinox vehicles may complain about insufficient cooling when the A/C compressor is turned on. The A/C compressor may not have been torqued properly at the time of assembly, causing a load on the compressor shaft.
Loosen the A/C compressor mounting bolts and re-torque. The compressor should be held tight/flush to the engine block during the final torque to ensure proper alignment. Refer to the service manual for torque value.
After the mounting bolts have been torqued, run the vehicle with the A/C on for a minimum of two minutes to verify sufficient A/C performance.