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August 20, 2014 Service bulletin

Kenworth: due to developing borate salt crystals from a batch of DOT4 fluid, causing a blockage in clutch...

Kenworth technical service bulletin TIB-23-001 for 2013-2014 Kenworth T680 and 2013-2014 Kenworth T800.

Bulletin number
TIB-23-001
Component
Power train: clutch assembly: pedal/hand lever(motorcycle)
Summary
Kenworth: due to developing borate salt crystals from a batch of dot4 fluid, causing a blockage in clutch master cylinder and not able to compress clutch or poor pedal feel. Model 2013 t680, 880.

Owners of these vehicles have filed 2 complaints in the transmission category.

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