Postby chris.kirchhof » Tue Feb 14, 2012 7:58 am
Hey! The sound drove me to insanity! I finally took it to the dealer, was diagnosed. "The noise is coming from the blower motor's mode cam door because the grease had dried out causing the friction. Removed, cleaned, then lubricated and reinstalled the cam." So the lubricated the gears and stuff, and only cost a reasonable $139.23. What relief! Also remember to change the cabin filters. Problem solved. Good luck!