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Service bulletin FSB 284-062

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 id10082999
Published by NHTSA2016-10-19
Manufacturer's numberFSB 284-062
Manufacturer's date2015-06-05
NHTSA componentENGINE

NHTSA's summary

MP7 345R THROTTLE DELAY AT COLD START, CERTAIN MACK MP7 345R ENGINES BUILT BETWEEN FEBRUARY 7, 2014 AND JULY 6, 2015 MAY EXPERIENCE EXCESSIVE THROTTLE DELAY AT START UP DURING EXTREMELY COLD AMBIENT TEMPERATURES UNTIL NORMAL ENGINE OPERATING TEMPERATURES ARE ACHIEVED. IMPROVED SOFTWARE HAS BEEN RELEASED TO ADDRESS THIS CONDITION.

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 LEU2015 to 2016
MACK MRU2015 to 2016

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