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Q: A/C Heater Blower on 2001 Pontiac Montana

My A/C blower has stopped working on settings 1 through 3 on the dashboard control. It only works on settings 4 and 5. Will this require a full blower moter replacement or something less?
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There is a resistor block attached to the blower motor case which is most likely causing your problem. The blower switch inputs to the resistor block should be checked before replacing the resistor block. Also, changing the resistor block can be a bit tricky due to its mounting location.
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