VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH HYDRAULIC BRAKES AND A DURAPARK PARK BRAKE SYSTEM MANUFACTURED BY ARVINMERITOR. AIR IS ENTERING THE HYDRAULIC REAR BRAKE CYLINDERS THROUGH AN UNKNOWN PATH AND THE REAR SELF-ADJUSTING BRAKES MAY NOT BE OPERATING PROPERLY.
THIS RESULTS IN SPONGY OR SOFT FEEL TO THE BRAKE PEDAL AND A LOSS OF REAR BRAKING CAPABILITY.
DEALERS WILL REMOVE AND REPLACE THE ABS ECU AND INSPECT THE BRAKE PEDAL FOR PROPER TRAVEL. IF EXCESSIVE TRAVEL IS DETECTED, THE BRAKE SYSTEM WILL BE BLED AND REAR BRAKES ADJUSTED. AS AN INTERIM MEASURE, FREIGHTLINER WILL NOTIFY ALL OWNERS TO HAVE THEIR VEHICLES INSPECTED TO ASSURE PROPER FUNCTION OF THE BRAKE…