Hello, new to the forum! Just bought myself a 2000 Grand Prix GT with 93k miles.
One of the things that has been bothering me is that when I change the direction of the air blower (like from front to defrost, or defrost to feet, or anything) there is a loud popping noise that occurs, that scares the crap out of me!
Everything works fine, the blower works on all speeds (maybe a bit weak on high setting, but i'm not sure) and all directions.
Any idea on what this is? I swear i'm going to get in a wreck one day from this, it's really surprising how loud this popping/knocking sound is!
Thanks in advance!