I HAVE AN 03 ENVOY SLT. THE FAN CLUTCH JUST WENT OUT 3 DAYS AGO. I HAD HEARD THE TICKING SOUND BEFORE, BUT NEVER THE LOUD AIRPLANE SOUND UNTIL IT FINALLY BROKE COMPLETELY. THE DEALER WANTS $720. AFTER CALLING GM CUSTOMER SERVICE (MANNY AT 1866-952-4368, EXT. 3-2786), HE SAID BECAUSE I HAVE 119,000 MILES ON MY CAR, THERE IS NOT MUCH THEY CAN DO. I LOOKED INTO THIS PROBLEM ONLINE AND FOUND THIS IS A COMMON PROBLEM. WHEN I EXPLAINED THIS TO GM, HE STILL DOESN'T KNOW A LOT ABOUT THE ISSUE. MORE COMPLAINTS:- HTTP://WWW.CARSURVEY.ORG/REVIEWS/CHEVROLET/TRAILBLAZER/R64655/COMMENTS/ *TR