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Service bulletin FSB 213-002

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10110370
Published by NHTSA2017-08-04
Manufacturer's numberFSB 213-002
Manufacturer's date2017-02-10
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING

NHTSA's summary

Exhaust Rocker Compression Brake Piston, Repair, For MACK CHU, CXU, GU, and TD trucks built from 01/01/2007 to present, a repair procedure and new tools have been created to repair of the exhaust rocker compression brake pistons. In some instances the exhaust rocker piston cap screw may become loose and back out causing loss of engine compression, or a mechanical injector Diagnostic Trouble Code.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Exhaust and emissions, Fuel system

Vehicles listed
MACK CHU
MACK CXU
MACK GU
MACK TD

Listing a model year does not mean every vehicle of it is concerned: the document says which.