Defect summary
THE BENDIX MV-2 PARKING CONTROL VALVE INSTALLED IN VEHICLES WITHOUT A DESICCANT STYLE AIR DRYER MAY EXPERIENCE A SEAL FAILURE. THIS FAILURE MAY ALLOW THE VALVE TO MOVE FROM THE PARK POSITION TO THE RELEASE POSITION, ALLOWING THE PARKING BRAKES TO RELEASE.
Consequence
RELEASE OF THE PARKING BRAKES WHILE THE VEHICLE ISUNATTENDED OR WITHOUT WARNING COULD RESULT IN A VEHICLE ACCIDENT.
Remedy
REBUILD THE BENDIX MV-2 PARKING CONTROL VALVE.
Notes
SYSTEM: PARKING CONTROL VALVE.VEHICLE DESCRIPTION: HEAVY TRUCKS 33,000 LBS. GVWR AND GREATER.
Source: NHTSA ODI recalls file, campaign 91V081000. Text as published by NHTSA.