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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: Suspension are shown. Show all

Bulletins, newest first
M728-005A 2023082023-09-06. Service bulletin. SUSPENSION. TSB: Barksdale Leveling Valve, Leak Test
M-451-0012022-09-01. Service bulletin. STRUCTURE; SUSPENSION:FRONT; POWER TRAIN:DRIVELINE. 2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance.
M-711-0012022-09-01. Service bulletin. SUSPENSION:REAR; SUSPENSION. 2008 Document reformatted to be published as a TSB in Impact. Rear Suspension Repair.
KC-21702022-06-07. Service bulletin. SUSPENSION. Electronically Controlled Suspension (ECS) Losing Air Pressure
PI-07802012-06-13. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE. MACK: DURING EXTREME DOWNWARD ARTICULATION OF REAR AXLE, THE AIR SPRING MAY SEPARATE AT MOUNTING BELL. *PE
SB-12-10432009-01-13. Service bulletin. SUSPENSION:REAR; SUSPENSION. MACK TRUCK: SUSPENSION CROSSMEMBERS, PRIMAAX REAR SUSPENSION. MODELS EQUIPPED WITH THE HENDRICKSON PRIMAAX REAR AIR SUSPENSION MAY DEVELOP A CRACK IN THE RADIUS OF THE LOWER END GUSSET. *PE

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