heater doesnt work on 1999 Buick Century

my heater only works on the high setting, and makes an awful noise, and doesnt blow heat. any suggestions?

by in Anson, ME on January 09, 2011
1 answer
ANSWER by on January 09, 2011
blower resistor is bad. the motor may have caused it. replace both the blower motor and the resistor. Roy
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