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November 6, 2012 Service bulletin

Kenworth: transmission does not automatically upshift when high idle speed of engine is exceeded due to...

Kenworth technical service bulletin TIB-26-023 for 2010-2012 Kenworth T800, 2010-2012 Kenworth T660 and 2010-2012 Kenworth T700.

Bulletin number
TIB-26-023
Component
Electrical system: software
Summary
Kenworth: transmission does not automatically upshift when high idle speed of engine is exceeded due to lack of proper calibration of transmission for-engine. Models 2010-2012 t660, t700 and t800.

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