Technical Service Bulletins

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Not a Cool Chevy

This bulletin applies to 2012-2013 Chevy Equinox and Impala vehicles as well as GMC Terrain models, equipped with a V6 engine only. Some customers may comment on an erratic or insufficient cooling when the A/C compressor is turned on. The 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 A/C compressor should be held tight/flush to the engine block during the final torque sequence to ensure proper alignment. Refer to each vehicle application in the service manual for mounting torque and tightening sequence.

After the mounting bolts have been torqued, run the engine with the A/C on for a minimum of two minutes to ensure sufficient A/C performance.

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