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September 1, 2013 Service bulletin

Mack: under certain conditions, higher than expected turbocharger wheel speed, uneven engine speed, low T2...

Mack technical service bulletin FSB-284-044 for 2011 Mack Gu, 2012-2013 Mack Granite (Gu) and 2011-2013 Mack Pinnacle (Cxu).

Bulletin number
FSB-284-044
Component
Engine
Summary
Mack: under certain conditions, higher than expected turbocharger wheel speed, uneven engine speed, low t2 temperatures, high engine load, may have regeneration service failures. Model cxu, gu. No years listed.

Owners of these vehicles have filed 1 complaints in the engine category.

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