1992 CHEVROLET SUBURBAN — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

WE HAVE HAD AN ONGOING PROBLEM WITH THE ANTI LOCK BRAKES MAKING A LOUD GROANING SOUND. THIS TYPICALLY OCCURS RIGHT AFTER WE START THE ENGINE AND THEN SEEMS TO GO AWAY. IT WILL ALSO OCCUR WHEN WE GO OVER A BUMP WITH THE BRAKES ENGAGED. I REPORTED THIS TO THE DEALER(S) WHEN WE FIRST GOT THE VEHICLE AND THEY COULD NOT FIND ANYTHING WRONG. ON JAN 15, 1999 I WAS FOLLOWING A CAR WHO STOPPED AT A YELLOW SIGNAL LIGHT. WHEN I APPLIED THE BRAKES, THERE WAS A LOUD "GROAN" AND I BELIEVE THE PEDAL WENT TO FLOOR. I HAD ADEQUATE ROOM TO STOP, BUT THE BRAKES SEEMED TO JUST NOT WORK PROPERLY. WHEN I WENT OUT THIS MORNING TO CHECKTHE BRAKES, THEY FELT SPONGY AND THEN FINALLY GOT A NORMAL FEEL AGAIN. I BELIEVE THAT THERE IS A PROBLEM WITH THE ANTI-LOCK BRAKES ON THIS VEHICLE. FORTUNATELY THE ACCIDENT WAS RELATIVELY MINOR; HOWEVER, I BELIEVE THAT GM SHOULD FIX BOTH MY VEHICLES BRAKES, AND TAKE CARE OF THE DAMAGE ON THE OTHER CAR. I WILL BE OUT OF TOWN UNTIL THE 26TH OF JANUARY.