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  1. zjuni

    Hvac vacum problem

    Hello First stage of problem solved. Hvac heater door actuator has limited travel. Other side seems to keep vacuum but other side is totally out of resist when applying vacuum via pump. Is it possible to repair actuators or is it best way to buy new or good used one. Thanks
  2. zjuni

    Hvac vacum problem

    Hello Fellows Owner of 300 66 and founded some errors in hvac system. only "clap sound is heard when heat is pressed in heater control unit when vehicle idling. Cutted off the main supple hose from intake manifold to vacuum heater control unit. Inserted vacum pump to hose and applied 10iches...
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