THERE WAS NO WARING OR SOUNDS INDICATING A PROBLEM.A/C STARTED BLOWING HOT AIR, I PULLED OVER AND LOOKED UNDER THE HOOD AND FOUND THE COMPRESSOR ON FIRE.THIS COULD HAVE HAD A DEVISTATING ENDING HAD MY WIFE BEEN DRIVING BECAUSE SHE WOULD HAVE KEPT GOING.THIS IS VERY UPSETING TO THINK OF WHAT COULD HAVE HAPPENED. THIS COULD HAVE VERY EASILY ENDED MY FAMILY HAD THE TRUCK TOTALLY CAUGHT ON FIRE WITH MY WIFE DRIVING WITH OUR CHILDREN. *AK