THIS IS THE SECOND GM VAN I OWNED WITH THIS ISSUE. WHEN I FIRST GET IN AND START TRUCK AND TURN ON A/C I CAN SIT THERE AT IDLE FOR A WHILE AND A/C WILL NOT GET COLD, HAVE TO REV MOTOR AND THAN COMPRESSOR CLUNKS LOUDLY ON AND STARTS GETTING COLD. ALSO WHILE TRAVELING DOWN HIGHWAY IT GOES WARM AND SMELLS MUSTY. I TOOK TO DEALERSHIP SEVERAL TIMES WHILE UNDER FACTORY WARRANTY AND THEY COULD NOT FIND PROBLEM. I HAD TO PURCHASE A $2000.00 EXTENDED WARRANTY TO ENSURE I WOULD NOT GET HIT WITH EXPENSIVE A/C REPLACEMENT IN FUTURE.

I HAD THE SAME PROBLEM WITH MY 07 EXPRESS, NOT SURE WHAT THE DEAL IS BUT ITS REAL ANNOYING. ALSO I HAVE AN ISSUE WITH POWER STEERING NOISE, WHEN TURNING HARD LEFT OR RIGHT MAKES A RUBBING/VIBRATING NOISE. LAST, NOT EVEN 36,000 MILES ON VAN, HAD TO REPLACE REAR CALIPER SLIDES IN A WARRANTY REAR AXLE SEAL LEAK SITUATION. GM DID NOT MAKE GOOD, HAD TO PAY FOR REPAIR EVEN WITH WARRANTY. I WAS NOT HAPPY. I HAVE HAD OVER 6 GMC VANS AND TRUCKS WITHIN MY BUSINESS OVER LAST 15YRS AND THESE LAST 2 VEHICLE YEARS OF 2007 AND 2012 HAVE NOT BEEN GOOD. LETS FIND A FIX GM