Question about 2004 Chevrolet TrailBlazer

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2004 chevy Trailblazer, We changed the battery and now the a/c only blows hot air, How can this be fixed?

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Try to reinitialize the HVAC system by turning all controls to their off position or fully CCW position, then disconnect the battery for a few minutes. Reconnect battery and allow the HVAC to initialize, don't move any controls for at least a minute. If this does not work, you probably have a stuck blend door or a bad door actuator.

Posted on Apr 13, 2011

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