http://auto-recalls.justia.com BUICK:CENTURY:1983 Recalls http://auto-recalls.justia.com/content/83V105000-BUICK-CENTURY-1983.html THE BRAKE PROPORTIONER VALVES MAY BREAK AND SEPARATE FROM THE MASTER CYLINDER. THIS WOULD ALLOW BRAKE FLUID TO LEAK AND WOULD RESULT IN A PARTIAL LOSS OF THE BRAKE SYSTEM. Fri, 21 Oct 1983 00:00:01 EST