2004 Chevrolet Impala AC Runs When Cold

CHEVROLET

ROWLAND703

MEMBER
1 POST

2004 Impala ls, 23000mi, air compressor runs with heater on even when outside temp. is in the teens. Compressor also noisy. Dealer says all is normal. Is this normal. Thanks.

Dec 19, 2006 at 2:21 AM

BOOTDOG

✓Experienced Mechanic
665 POSTS

do you have it selected to defrost? it doesn't matter the temp outside, the compressor is made to come on when selected to defrost. and it will make a louder noise when the ac clutch enguages.

Dec 19, 2006 at 2:58 AM

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Suggested Repair

No repair is indicated if the system is set to defrost. The compressor is designed to run in defrost mode regardless of outside temperature, and a louder noise when the AC clutch engages is expected.

Conversation Summary

The owner of a 2004 Chevrolet Impala reports that the AC compressor runs with the heater on in very cold weather and is noisy, though the dealer says this is normal. The expert explains that the compressor is made to come on when defrost is selected no matter the outside temperature, and that the clutch makes a louder noise when it engages.

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2004 Chevrolet Impala AC Runs When Cold

Suggested Repair

Conversation Summary

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