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Service bulletin FSB 221-010

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 id10083708
Published by NHTSA2016-10-28
Manufacturer's numberFSB 221-010
Manufacturer's date2013-06-13
NHTSA componentENGINE

NHTSA's summary

DURING LONG HARD PULL CONDITIONS, DIAGNOSTIC TROUBLE CODES (DTC’S) SPN 100 FMI 1 CAN LOG ON CERTAIN CXU, GU, LEU, AND MRU MACK TRUCKS WITH MP7 EPA2010 ENGINES.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
MACK MACK

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