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Service bulletin PI 0841

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 id10083536
Published by NHTSA2016-10-26
Manufacturer's numberPI 0841
Manufacturer's date2014-02-17
NHTSA componentENGINE

NHTSA's summary

ON CERTAIN MACK CNG (COMPRESSED NATURAL GAS) MRU/LEU MODELS, BUILT BETWEEN 11/10/13 AND 2/14/14, MAY HAVE AN ACTIVE FAULT CODE MID 140 PID 247 FMI 9 AND THE ENGINE HOURS IN THE INSTRUMENT CLUSTER (MID140) MAY NOT MATCH WHAT IS IN THE ENGINE. THIS IS DUE TO A MESSAGING ISSUE BETWEEN THE ENGINE AND INSTRUMENT CLUSTER (MID140).

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 LEU2014 to 2015
MACK MRU2014 to 2015

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