Service bulletins for the 2008 Mack CHN
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
80 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Automatic transmission are shown. Show all
| FSB-437-001 | 2012-02-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. MACK TRUCK: THE EASY INSTALLATION OF ALLISON TRANSMISSION AND PREVENTING BINDING OF TORQUE CONVERTER PILOT DURING THERMAL EXPANSION CYCLE OF NORMAL OPERATION BY USING HIGH TEMPERATURE MOLYBDENUM DISULFIDE GREASE. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.