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Service bulletin PI-0781

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 id10044335
Published by NHTSA2012-06-13
Manufacturer's numberPI-0781
Manufacturer's date2012-06-01
ReplacesPI-0781-3
NHTSA componentENGINE

NHTSA's summary

MACK: DUE TO FRETTING OF CONNECTOR PINS IN ENGINE VGT ACTUATOR CONNECTOR, A NEW MOUNTING ARRANGEMENT HAS BEEN DEVELOPED AND RELOCATION OF ENGINE VGT ACTUATOR CONNECTOR. MODELS CHU, CXU, GU, MRU, MP8. *PE UPDATED 7/31/12. *PE

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 CHU2008 to 2010
MACK CXU2008 to 2010
MACK GRANITE (GU)2012
MACK GU2008 to 2011
MACK MRU2008 to 2012
MACK PINNACLE (CHU)2011 to 2012
MACK PINNACLE (CXU)2011 to 2012

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