Defect summary
DUE TO IMPROPERLY ASSEMBLED PARKING BRAKE HYDRAULIC SYSTEM, IN COLD WEATHER HIGH OIL BACK PRESSURE MAY OCCUR; WHEN ENGINE IS STARTED PARTIAL OR FULL RELEASE OF PARKING BRAKE MAY AUTOMATICALLY OCCUR.
Consequence
IF THIS OCCURS WHEN VEHICLE IS PARKED ON AN INCLINE,VEHICLE COULD ROLL DOWN THE INCLINE AND RESULT IN AN ACCIDENT OR PERSONALINJURY.
Remedy
INSTALL A NEW HYDRAULIC HOSE AND FITTINGS TO ELIMINATE THE BACK PRESSURE FROM THE SIGNAL PORT WHICH WOULD PRECLUDE ANY FALSE SIGNAL TO THE PARKING BRAKE.
Notes
SYSTEM: PARKING BRAKE.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.
Source: NHTSA ODI recalls file, campaign 88V197000. Text as published by NHTSA.