Question about Chevrolet 1500

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Hvac unit blows hot air only on drivers side when the ac unit is turned on. It only does it once in a while. If you turn off the ignition switch and restart it wil usually go back to operating normally. could it be the blend door actuator and if so how difficult is it to replace? Thanks Lewis Perry

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One or more heater & A/C (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.the blower module that is located at the bottom of the heater box, next to the blower motor, above the panel below the glove box, has a tendancy to go bad, possibly overheat, and melt the larger of the two connectors. This can lead to one or all sppeds inop. the module will need to be replaced, and th connector inspected. If the connector is melted, or discolored, it needs to be replaced. A pigtail with wires, and connectors, as well as the resistor, should be available at a local GMC or Chevy dealer. Good luck, and dont forget to click the green accept button. thanks

Posted on Mar 15, 2011

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