hsteed01 Posted October 29, 2007 Posted October 29, 2007 Problem solved -- There are 2 actuators that control doors on heater assembly The one that I had that was making knocking noise was the one close to the firewall I disconnected wire going to actuator - Noise gone - I however have yet to remove actuator and either repair or replace it -- That's for another rainy day -- Note : the heater still functions at least the defrost is still on that's all that matters at present time. I will post info as to what I find when I remive actuator. Howard
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