Technical Service Bulletin SC0399 — 2014 MACK CXU
POWER TRAIN
Bulletin Details
| TSB ID | SC0399 |
| Manufacturer | |
| Vehicle | 2014 MACK CXU |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL RISK IS THAT IF THE NUT COMES OFF, THE YOKE CAN SEPARATE FROM THE AXLE INPUT SHAFT AND CAUSE THE DRIVESHAFT TO DISCONNECT. IF THIS OCCURS, A DISCONNECTED DRIVESHAFT CAN DISABLE THE VEHICLE AND RESULT IN DEBRIS IN THE ROADWAY, WHICH INCREASES THE RISK OF A VEHICLE CRASH.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2014 MACK CXU
CBR-2449 202503
ENGINE
M-721-005
SUSPENSION
KC-492
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
PI 0859A
VEHICLE SPEED CONTROL
FSB 722-005A
SUSPENSION
FSB 722 005
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
PI 0859
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
FSB 381-013
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
FSB 371-048
STEERING:COLUMN
FSB 728-001
ELECTRICAL SYSTEM