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July 1, 2012 Service bulletin

Mack trucks: engine tubocharger compressor bypass valve, airline routing

Mack technical service bulletin FSB-258-033 for 2006-2011 Mack Gu, 2006-2010 Mack Cxu and 2012-2013 Mack Granite (Gu) and others.

Bulletin number
FSB-258-033
Component
Engine and engine cooling: engine: gasoline: turbo/supercharger
Summary
Mack trucks: engine tubocharger compressor bypass valve, airline routing. This document covers the procedure for routing the flexible air line around the front of the engine if the existing steel air line fail. Js

Owners of these vehicles have filed 3 complaints in the engine category.

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