1997 Chevrolet Silverado 2500

WIPERS QUIT WHEN IN USE. WORK INTERMITTENTLY. THEY ARE UNPREDICTABLE. THEY HAVE BEEN THAT WAY FOR YEARS. MY 1999 TAHOE DOES THE SAME THING. MY 1996 SILVERADO DID THE SAME THING AS WELL AND I RECEIVED A RECALL NOTICE AND THE DEALER REPAIRED PROBLEM. THESE TWO VEHICLES ARE VIRTUALLY IDENTICAL TO THE 1996 SILVERADO, AND ARE SHOWING THE SAME SYMPTOMS. THE WIPERS WILL WORK ERRATICALLY ESPECIALLY IF IT'S A HEAVY RAIN AND CAN QUIT IN THE MIDDLE OF OPERATION MAKING THE VEHICLE VERY UNSAFE. PLEASE FIND OUT WHY THE 1996 SILVERADO WAS COVERED UNDER A RECALL AND THE 1997 SILVERADO AND THE 1999 TAHOE WERE NOT COVERED UNDER THE SAME RECALL WHEN THEY ARE SHOWING THE SAME DANGEROUS FAULTY WINDSHIELD WIPER PROBLEMS. AGAIN THIS PROBLEM HAS BEEN GOING ON FOR YEARS AND I'M FRUSTRATED THAT THE DEALER WILL NOT FIX THIS PROBLEM THAT WAS COVERED UNDER A RECALL FOR THE 96 SILVERADO. THANK YOU