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If its not the fuse Why did your heater fan on your 95 GMC Sierra 2500 stop working completely?
Wiki User
∙ 14y ago
There's a sensor in the duct work behind th glove box under the dash that controls the fan speeds.
It could be that. On my truck I only had the two highest speeds and that's the part I changed.
Wiki User
∙ 14y ago
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