FSB 253-002

Service Bulletin Details

Public Details for: FSB 253-002

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.


- 2015 - 2014 - 2013 - 2012 - 2011 -

Models from 2015
2015 MACK CXU
2015 MACK GU
Models from 2014
2014 MACK CXU
2014 MACK GU
Models from 2013
2013 MACK CXU
2013 MACK GU
Models from 2012
2012 MACK CXU
2012 MACK GU
Models from 2011
2011 MACK CXU
2011 MACK GU 
Field Service Bulletin
Trucks
Mack Trucks, Inc.
Greensboro, NC USA
Date
Group
No.
Release
Page
2.2015
253
002
01
1(1)
Engine Brake Loss
CXU, GU
FSB 253-002, Engine Brake Loss
(February 2015)
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.
PV729-FSB253-002_M
Dataset 2 (EECU)
Action
22359757 or Lower
Program the MID 128 EECU
22609477 or Higher
No Programming Required

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