Air Conditioning and Coolant
Chevy Blazer S-10
Heating Ventilating and Air Conditioning

Why would ac vents emit a clicking sound only when the air first comes on?

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Wiki User
2005-09-11 04:11:53
2005-09-11 04:11:53

You probably have an electronic air cleaner. That's a GOOD thing. The electronic air cleaners do a remarkable job of removing dust and pollen from the air. The filter needs to be cleaned occasionally but you should refer to the owners manual to make certain that you don't damage it. They are expensive to replace.

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