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weak heater fan

montanalee

By montanalee
in Ask A GM Technician

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montanalee New Member

montanalee

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hi I've got a 2015 Chevy Duramax LT with a climate control problem. My fan seems to make a lot of noise but no matter what setting you have it on ( defrost, feet, head and feet or just head or feet it doesn't blow very hard. I compared it to another 2016 and it seems to be blowing about half of what it should be. I can't seem to figure out whats causing the problem. Thanks in advance for any help.

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