Car Problem Reports

GMC Sierra 3500 Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

 
GMC Sierra 3500 Problem
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Model Years Affected: 2001, 2002, 2003, 2004

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One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

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