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NHTSA Campaign 01V189004

SERVICE BRAKES, AIR:CONTROLS, PEDALS AND LINKAGES

Issued by MACK TRUCKS, INCORPORATED · Reported Aug 1, 2001 · 8,268 vehicles affected

What's wrong

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

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.

Vehicles affected by this recall

Make Model Year Units
MACK CH 2000 8,268
MACK CH 2001 8,268
MACK CL 2000 8,268
MACK CL 2001 8,268
MACK CV 2000 8,268
MACK CV 2001 8,268
MACK CX 2000 8,268
MACK CX 2001 8,268
MACK DM 2000 8,268
MACK DM 2001 8,268
MACK DMM 2000 8,268
MACK DMM 2001 8,268
MACK MR 2000 8,268
MACK MR 2001 8,268
MACK RB 2000 8,268
MACK RB 2001 8,268
MACK RD 2000 8,268
MACK RD 2001 8,268

Source: NHTSA Campaign 01V189004 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.