Man, I gotta say I love my Tahoe...but there are so many things to stay on top of! LOL! To be expected with a 15 yr old truck, and at least it's not happening all at once! (knock on wood). Just one thing after another. Every. Freakin'. Week. So now it's the little overhead aspirator fan thing making a racket. (And I'm 6'5", so I'm a little closer to it than most! LOL!) Honestly, I didn't know what the hell it was until I got home and logged on here. Found my answer instantly! Ordered one on Amazon Prime. (BTW, GM changed the part #). It'll be here tomorrow. Thanks to this forum, I know what to look for and how to fix it myself! Lots of great knowledge here. Lots of cool people too! Just wanted to say thanks! I'm going to look into becoming a supporting member because this site is such a valuable resource. And I never noticed how many Tahoe/Yukons were out there til I got mine! And most are NBS.