Question about 2004 GMC Canyon

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Heat/ac blower motor works on high. intermittent on other speeds.

The blower motor works on speed 4 when the dial is set on 4. However, on speeds 1,2,3 the blower works intermitently. The motor woks on speed 4 any time, so I don't think the motor or control is a problem. Could it possibly be a loose ground somewhere???
Thanks for any help ...

Posted by rmdn69 on

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John Bloomfield

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Check the blower resistor pack - usually located in the heater air ducting in the blower fan airflow. Check for loose connections and open circuit resistors on the unit.
If speed 4 works always, its unlikely to be the blower motor ground connection.

Posted on Aug 11, 2009

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