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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: Fuel system are shown. Show all

Bulletins, newest first
KC-1632021-12-07. Service bulletin. FUEL SYSTEM, DIESEL. Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year 2008 And Newer
K585577842018-03-19. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control Module ( EMS ); Possible Rough / Uneven Idle - OBD15 Chassis

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.