Heater Noise

By bigtrout1949
March 2, 2011 in 1999-2013 Silverado 1500 & Sierra 1500

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bigtrout1949

Posted March 2, 2011

Hey guys & gals. I have a 1998 chev k3500. There is a very annoying noise coming from heater. It is a noticeable series of 5 clicks every 30 seconds. I assume it is the blend door activator or the control module in the dash. Any hints and instructions(with pictures) would be greatly appreciated. I have looked at the heater plenum but cannot see any obvious obbjects that look like could be accessed. HELP Thanks

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