Engine brake loss
Mack technical service bulletin FSB 253-002 for 2011-2015 Mack Gu and 2011-2015 Mack Cxu.
- Bulletin number
- FSB 253-002
- Component
- Engine
- Summary
- Engine brake loss. Certain euro 4 mack vehicles built from january 14, 2010 to february 15, 2014 may experience engine brake loss in top gear. Check the engine ecu dataset 2 part number and compare to the chart below.
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