Question about 2000 Chevrolet Blazer

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My heat is not working. Its throwing out very cold air now. It happen before and i replace thermostat and blew air threw heater core. I blew air threw heater core the other day now its throwing out real cold air.

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  • Anonymous Jan 31, 2009

    i switch the thermostat the blow out cold air



  • mike loshbough
    mike loshbough May 11, 2010

    if you blow threw the heater core and got stuff out it is not the heater core try heater switch control unit

  • Anonymous Mar 15, 2014

    the air is not hot enough

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  • 26 Answers

It sounds like your heater core is stopped up, or be sure your coolant is flowing, and picking up heat from your engine...Thermostat, water pump, etc.

Posted on Jan 30, 2009

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