Service bulletins for the 2004 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.
59 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
| M728-005A 202308 | 2023-09-06. Service bulletin. SUSPENSION. TSB: Barksdale Leveling Valve, Leak Test |
|---|---|
| M-451-001 | 2022-09-01. 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-711-001 | 2022-09-01. Service bulletin. SUSPENSION:REAR; SUSPENSION. 2008 Document reformatted to be published as a TSB in Impact. Rear Suspension Repair. |
| KC-2170 | 2022-06-07. Service bulletin. SUSPENSION. Electronically Controlled Suspension (ECS) Losing Air Pressure |
| 121031 | 2006-09-21. Service bulletin. SUSPENSION. SUSPENSION CROSSMEMBERS - CXN AND CHN MODELS EQUIPPED WITH MACK AL SUSPENSION. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.