A/C Noise

By BigMike75
July 25, 2016 in 1999-2013 Silverado 1500 & Sierra 1500

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BigMike75

Posted July 25, 2016

I have a 99 GMC 2500, 6.0/Auto. When my A/C is on, I have a weird clicking noise coming from under the dash. It does it at the same noise level at ever fan speed. So doesn't seem to be a fan issue.

Any suggestions?

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