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October 31, 2017 Service bulletin

Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Too Low ) Regeneration Temperatures...

Mack technical service bulletin K76992557 for 2017 Mack Gu, 2017 Mack Cxu and 2017 Mack LR and others.

Bulletin number
K76992557
Component
Fuel system, gasoline
Summary
Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Too Low ) Regeneration Temperatures Following An Aftertreatment Hydrocarbon Injector ( AHI, 7th Injector ) Nozzle Replacment Procedure

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