MACK CHN 2004: SERVICE BRAKES, AIR:DISC:CHAMBER

General Information

NHTSA Campaign ID Number: 05V112000

Make Model Year
MACK CHN 2004
Date Owners Notified Date Received by ODI Date Added to Database
2005-05-03 2005-03-24 2005-03-28

Production Dates: 2004-02-24 - 2004-09-19

Manufacturers Involved: Mack Trucks, Inc.

Manufacturer Campaign Number: SC0294

Component: SERVICE BRAKES, AIR:DISC:CHAMBER

Potential Number Of Units Affected: 291

Report Initiator: MFR MFR Report

Summary

ON CERTAIN HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH AIR SUSPENSION PROPRIETARY AXLES AND ADJUSTABLE LENGH TORQUE RODS, AN INTERFERENCE BETWEEN THE ADJUSTABLE TORQUE ROD AND THE BRAKE CHAMBER ON THE LEFT SIDE OF THE CHASSIS MAY EXIST. THE SPRING BRAKE CHAMBER CLAMP RING COULD POSSIBLY BE DISTORTED OVER TIME RESULTING IN LOSS OF AIR, WHICH COULD LEAD TO THE SPRING BRAKE AT THE CHAMBER BEING INADVERTENTLY APPLIED.

Consequence

BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH.

Remedy

DEALERS WILL REPAIR AND REPLACE THE ADJUSTABLE TORQUE ROD, WITH A FIXED LENGTH TORQUE ROD, INSPECT AND REPAIR THE BRAKE CHAMBER FREE OF CHARGE. THE RECALL BEGAN ON MAY 3, 2005. OWNERS MAY CONTACT MACK TRUCKS AT 610-709-2131.

Notes

MACK TRUCKS RECALL NO. SC0294.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 'TTY 1-800-424-9153', OR GO TO HTTP://WWW.SAFERCAR.GOV.