vent modes

  1. Z

    AC vent actuators / mode issue

    All, hope I'm posting in the right place. This has to do with how my vent actuator(s)(?) are behaving. I'm pretty green to the correct nomenclature and to how things work so please bear with me. (1997 K1500 5.7, 3 door) I hear quick, clicking, sometimes slower and heavier sharp thumping, noises...
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