Question about 2000 Chevrolet Blazer
I'm not sure if you heater control valve is vaccuum operated or if it cable operated. If it is vaccuum operated the valve could be bad or you have a vaccuum leak to the valve. If your valve is cable operated then you most likely have a clogged heater core. Please rate my answer.
Posted on Dec 09, 2009
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Posted on Jan 02, 2017
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