2001 Mack CV: complaints, problems and recalls

Reported: 2001-08-01 (August 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: 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.

Reported: 2001-09-24 (September 24, 2001)

VEHICLE DESCRIPTION: CLASS A HEAVY DUTY TRUCKS WITH 18,000 LB. FRONT AXLES MAY HAVE FRONT SPRINGS INSTALLED THAT ARE RATED FOR THE 14,600 LB. FRONT AXLE.

Consequence: FRONT SPRING FAILURE COULD RESULT IN LOSS OF VEHICLE CONTROL.

Remedy: DEALERS WILL REPLACE BOTH SPRINGS. OWNER NOTIFICATION BEGAN DECEMBER 26, 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.

Reported: 2001-12-21 (December 21, 2001)

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH E-TECH ENGINES. A CONDITION EXISTS ON THE AUXILIARY DRIVE SHAFT OF THE E-TECH ENGINE THAT CAUSES THE LOSS OF POWER STEERING ON VEHICLES WHERE THE POWER STEERING PUMP IS MOUNTED OFF THE FRONT OF THE ENGINE.

Consequence: THIS COULD RESULT IN THE LOSS OF POWER STEERING.

Remedy: DEALERS WILL INSPECT THE VEHICLES AND REPLACE THE NUT THAT HOLDS THE GEAR TO THE AUXILIARY DRIVE SHAFT. OWNER NOTIFICATION BEGAN MARCH 22, 2002. 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.

Reported: 2002-04-26 (April 26, 2002)

ON CERTAIN TRUCKS EQUIPPED WITH MERITOR WABCO PNEUMATIC ANITLOCK BRAKE SYSTEM (ABS) VALVE PACKAGES, THE ASSEMBLY BOLTS ON THESE VALVE PACKAGES WERE NOT TIGHTENED CORRECTLY.

Consequence: BOLTS TORQUED BELOW SPECIFICATION WILL NOT RELIABLY PREVENT AIR LEAKAGE AT THE AFFECTED ABS VALVE PACKAGE INTERFACE JOINTS ONCE THE COMPONENT BEGINS NORMAL VEHICLE OPERATION. IF AIR LEAKS DEVELOP AT ANY OF THE ABS VALVE PACKAGE INTERFACE JOINTS, BRAKE SYSTEM PRESSURE REDUCTIONS COULD OCCUR DURING BRAKING OR NORMAL OPERATION WITH UNITS EQUIPPED WITH THE TRACTION CONTROL OPTION, POTENTIALLY EXTENDING STOPPING DISTANCES, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy: DEALERS WILL TIGHTEN THE FASTENERS TO THE PROPER SPECIFICATION. OWNER NOTIFICATION BEGAN JUNE 13, 2002. 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 1610-709-3337..

Reported: 2002-03-21 (March 21, 2002)

ON CERTAIN HEAVY DUTY TRUCKS EQUIPPED WITH DANA SPICER TANDEM DRIVE AXLE MODELS DS463, AN UNDERSIZED ATTACHMENT WELD MAY FRACTURE WITHOUT WARNING.

Consequence: THE LOSS OF THIS ATTACHMENT TO THE VEHICLE CHASSIS CAN ADVERSELY AFFECT VEHICLE HANDLING OR DRIVER CONTROL.

Remedy: THE DEALERS WILL REMOVE THE SUSPECT BRACKET, INSPECT THE AXLE HOUSING, AND REWELD THE BRACKET TO THE AXLE HOUSING. OWNER NOTIFICATION BEGAN APRIL 22, 2002. 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 610-709-3337.

Reported: 2004-06-07 (June 7, 2004)

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: 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.