GMC Jimmy, S10, Blazer DIY How to Diagnose HVAC Mode Control – Vent – Defrost – Floor Selector

GMC Jimmy, S10, Blazer DIY How to Diagnose HVAC Mode Control – Vent – Defrost – Floor Selector

This video is should provide a starting point in trying to diagnose a GMC fan mode selection issue. My 2000 Blazer always blows air out of the dash vents. Th…

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