White ROAD COMM. II

Published

1979-06-07

Model years

1978–1978

TRUCKS BUILT BETWEEN OCTOBER 15, 1978 AND DECEMBER 11, 1978. VEHICLES MAY HAVE BEEN BUILT WITH CERTAIN TRACTOR PROTECTION VALVES THAT CONTAIN AN EXTRA CHECK VALVE. THIS MAY PREVENT THE TRAILER BRAKES FROM FULLY RELEASING AFTER A LOW PRESSURE APPLICATION THEREBY CAUSING THE TRAILER BRAKES TO DRAG. LTHIS MAY REDUCE THE OVERALL BRAKING EFFICIENCY AND IMPAIR VEHICLE CONTROL.