Question about 1996 Buick Roadmaster

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Heater not putting out heat all the time - 1996 Buick Roadmaster

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This could be 5 things. Low in water The blend door is not fully closed or you, thermostat not opening up. Heater control vavle bad. Bad heater core. Make sure the radiator is full of water ..Change the thermostat and flush the radiator. Then check or remove the heater control valve. Last replace the heater core.Good Luck!!!

Posted on Nov 03, 2010

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Bad heater core. Replace it.

Posted on Nov 03, 2010

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