Technical Service Bulletin PI 0858 — 2011 MACK CHU
POWER TRAIN:AUTOMATIC TRANSMISSION
Bulletin Details
| TSB ID | PI 0858 |
| Manufacturer | |
| Vehicle | 2011 MACK CHU |
| Component | POWER TRAIN:AUTOMATIC TRANSMISSION |
| Communication Date |
Bulletin Summary
VEHICLE ELECTRONIC CONTROL UNIT (VECU),REPROGRAMMING, VEHICLE SPEED SENSOR. CERTAIN MACK CHU, AND CXU TRUCKS BUILT FROM 10/21/2010 TO 02/28/2011, AND EQUIPPED WITH AN MDRIVE TRANSMISSION MAY EXPERIENCE ENGINE OVER-REV PAST THE GOVERNED SPEED WHILE THE TRANSMISSION IS ATTEMPTING A SHIFT. THIS CONDITION COULD CAUSE ERRATIC SHIFTING AND/OR OVER SPEED MESSAGES IN THE INSTRUMENT CLUSTER (IC) DUE TO INCORRECT PARAMETERS SETTINGS.
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 2011 MACK CHU
M-170-003
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
M-411-001
SERVICE BRAKES, AIR
KC-529
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
PI 0858
ENGINE
FSB 371-046
STRUCTURE
FSB 381-048
ELECTRICAL SYSTEM