ON CERTAIN CLASS 8 CHASSIS BUILT WITH HENDRICKSON LIFT AXLES WHICH CONTAINED WEBB BRAKE DRUMS, THE BRAKE DRUMS COULD EXPERIENCE PREMATURE CRACK OF THE BRAKING SURFACE RESULTING IN REDUCTION OR COMPLETE LOSS OF BRAKING ON THAT WHEEL END OR LOSS OF BRAKE DRUM PIECES.

Consequence & remedy

Consequence: LOSS OF BRAKING ABILITY COULD RESULT IN A VEHICLE CRASH, POSSIBLY CAUSING INJURIES OR DEATH.

Remedy: WEBB WHEEL IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. WEBB WILL NOTIFY CUSTOMERS, INSPECT THE BRAKE DRUMS AND REPLACE ANY DRUMS THAT FAIL INSPECTION. OWNERS SHOULD CONTACT WEBB AT 1-800-633-3256 OR MACK AT 1-610-709-3337.

01V189004 · Service Brakes, Air:controls, Pedals And Linkages

Aug 1, 2001

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH CERTAIN MERITOR-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES. THE VALVE MAY STICK OPEN WHEN A HIGH-PRESSURE APPLICATION IS RELEASED.

Consequence & remedy

Consequence: WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM. THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy: DEALERS WILL REPLACE THESE VALVES. OWNER NOTIFICATION BEGAN NOVEMBER 16, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011 OR MERITOR WABCO AT 800-535-5560.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

No exact-year investigations in this snapshot.