Ac Noise & Floorboard Thump

By lesZ71
March 6, 2008 in 1999-2013 Silverado 1500 & Sierra 1500

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lesZ71

Posted March 6, 2008

The past few months my truck has developed a loud clicking type noise whenever the truck is at idle. It seems that the AC compressor is cycling much more frequently. Also, each time this noise occurs, it can be felt in both the drivers and passenger side floorboards. It is definitely related to the AC in some way because it does not occur whenever the AC is OFF. Any ideas as to what is causing this? Is this a sign that my AC system needs some type of servicing?

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