Western star: around the diesel exhaust fluid (DEF) an excessive amount of crystal or powder built up...
Western Star technical service bulletin SB-49-12 for 1994-2013 Western Star 4900, 2012-2013 Western Star 4700 and 1995-1999, 2001, 2009-2012 Western Star Constellation and others.
- Bulletin number
- SB-49-12
- Component
- Engine and engine cooling: engine: diesel
- Summary
- Western star: around the diesel exhaust fluid (def) an excessive amount of crystal or powder built up indicates a leak caused by evaporation of def exposed to air and/or dampness.
Owners of these vehicles have filed 3 complaints in the engine category.
Vehicles covered
- Western Star 4900 1994-2013 20062007200820092010201120122013
- Western Star 4700 2012-2013 20122013
- Western Star Constellation 1995-1999, 2001, 2009-2012 19971998199920012009201020112012
- Western Star 4900EX 2003-2004, 2006-2007 2003200420062007
- Western Star 6900 1994-2013 20062007200820092010201120122013
- Western Star 4800 1994-2002 19951996199719981999200020012002
- Western Star 5900 1994, 1996-2003 19961997199819992000200120022003
- Western Star 5800 1997-2002 199719981999200020012002
- Western Star 4900FA 2000, 2003-2004 200020032004
- Western Star 4900 SA 2002-2011 20042005200620072008200920102011
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