Technical Service Bulletin M0309 202405 — 2018 MACK CHU
ENGINE
Bulletin Details
| TSB ID | M0309 202405 |
| Manufacturer | |
| Vehicle | 2018 MACK CHU |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
Emission Recall: Mack Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 MP8 (13L VGT) engine are not meeting California and EPA emissions standards, or Mack cannot confirm its compliance. These vehicles have been flagged due to telematics data showing that the NOx conversion efficiency of the SCR system has dropped below 94% for eight weeks. Alternatively, these vehicles may have communication issues with telematics, such as not reporting or ceasing reporting for the same period.
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 2018 MACK CHU
M-874-002
POWER TRAIN
KC-247
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
KC-420
ENGINE AND ENGINE COOLING
FSB 284-070
EQUIPMENT
K31822325
EQUIPMENT ADAPTIVE/MOBILITY
K17028411
ELECTRICAL SYSTEM
K59554255
EXTERIOR LIGHTING
K59554255
ENGINE
K05954144
ENGINE
K21052070
ENGINE