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July 28, 2011 Service bulletin

Navistar: there is updated ECM software

Workhorse technical service bulletin MIN-11131 for 2011 Workhorse W22, 2010-2011 International 4300 and 2010-2011 International Prostar and others.

Bulletin number
MIN-11131
Component
Engine and engine cooling: engine
Summary
Navistar: there is updated ECM software. Rm

Owners of these vehicles have filed 11 complaints in the engine category.

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