The defect
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.
The risk
BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack CHN | 2004 |
| Mack CXN | 2004 |
Components: SERVICE BRAKES, AIR:DISC:CHAMBER
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack CHN | 2004 | 0 | 7 |
| Mack CXN | 2004 | 0 | 10 |
Other service brakes, air recalls in 2005
22 of the 562 recall campaigns reported to NHTSA in 2005 concerned the service brakes, air; MACK TRUCKS, INC filed 74 campaigns in all.
| 05V569000 21 Dec 2005 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
| 05V517000 10 Nov 2005 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
| 05V442000 26 Sept 2005 | MACK TRUCKS, INC |
| 05V438000 26 Sept 2005 | MACK TRUCKS, INC |
| 05V441000 26 Sept 2005 | MACK TRUCKS, INC |
| 05V439000 26 Sept 2005 | MACK TRUCKS, INC |
| 05V355000 10 Aug 2005 | PIERCE MANUFACTURING |
| 05V291000 21 Jun 2005 | MONACO COACH CORPORATION |
NHTSA recalls (public domain) · all recalls of 2005