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Service bulletins for the 2000 Mack CL

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.

32 on file from NHTSA, as of 2026-10-19.

About P0420 on the 2000 Mack CL: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P0420 are shown. Show all

Bulletins, newest first
K043423272018-03-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY

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