There have been 8 technical service bulletins issued for the 1999 Western Star Heritage.
| Bulletin Date: | Aug. 1, 2015 |
| Component: | Brake lights switch. |
| Bulletin Summary: | Western star: brake signal overrides turn signal under normal operations, due to turn signal switches and stop/turn lamps are sharing same filament and some trucks want 4 way flashers to override self cancelling turn signal switches. No m |
| Vehicles covered in this TSB: |
2016 Western Star 4700,
2015 Western Star 4800,
2016 Western Star 4900,
2015 Western Star 5700,
2015 Western Star 6900,
2012 Western Star Constellation,
1999 Western Star Heritage.
|
| Bulletin Date: | Aug. 1, 2015 |
| Component: | Turn signal switch. |
| Bulletin Summary: | Western star: brake signal overrides turn signal under normal operations, due to turn signal switches and stop/turn lamps are sharing same filament and some trucks want 4 way flashers to override self cancelling turn signal switches. No m |
| Vehicles covered in this TSB: |
2016 Western Star 4700,
2015 Western Star 4800,
2016 Western Star 4900,
2015 Western Star 5700,
2015 Western Star 6900,
2012 Western Star Constellation,
1999 Western Star Heritage.
|
| Bulletin Date: | Feb. 1, 2012 |
| Component: | Front suspension wheel bearing. |
| Bulletin Summary: | Western star: lubricate wheel bearings, rear drive axles. |
| Vehicles covered in this TSB: |
2012 Western Star 4700,
1994 Western Star 4800,
1998 Western Star 4800,
1999 Western Star 4800,
2004 Western Star 4900,
2005 Western Star 4900,
2006 Western Star 4900,
2007 Western Star 4900,
2008 Western Star 4900,
2009 Western Star 4900,
2010 Western Star 4900,
2011 Western Star 4900,
2012 Western Star 4900,
2013 Western Star 4900,
1994 Western Star 5900,
|
| Bulletin Date: | Feb. 1, 2012 |
| Component: | Suspension multiple axle. |
| Bulletin Summary: | Western star: lubricate wheel bearings, rear drive axles. |
| Vehicles covered in this TSB: |
2012 Western Star 4700,
1994 Western Star 4800,
1998 Western Star 4800,
1999 Western Star 4800,
2004 Western Star 4900,
2005 Western Star 4900,
2006 Western Star 4900,
2007 Western Star 4900,
2008 Western Star 4900,
2009 Western Star 4900,
2010 Western Star 4900,
2011 Western Star 4900,
2012 Western Star 4900,
2013 Western Star 4900,
1994 Western Star 5900,
|
| Bulletin Date: | Feb. 1, 2012 |
| Component: | Driveline center support bearing. |
| Bulletin Summary: | Western star: lubricate wheel bearings, rear drive axles. |
| Vehicles covered in this TSB: |
2012 Western Star 4700,
1994 Western Star 4800,
1998 Western Star 4800,
1999 Western Star 4800,
2004 Western Star 4900,
2005 Western Star 4900,
2006 Western Star 4900,
2007 Western Star 4900,
2008 Western Star 4900,
2009 Western Star 4900,
2010 Western Star 4900,
2011 Western Star 4900,
2012 Western Star 4900,
2013 Western Star 4900,
1994 Western Star 5900,
|
| Bulletin Date: | Jan. 1, 2012 |
| Component: | Cooling exhaust system. |
| Bulletin Summary: | Western star: epa07 exhaust bellows replacement. If a failed exhaust bellows on an epa07 engine installation, replace it with a new style bellows, and two new matching clamps. No model years listed. Updated on 6/14/2011. |
| Vehicles covered in this TSB: |
1995 Western Star Constellation,
1996 Western Star Constellation,
1997 Western Star Constellation,
1998 Western Star Constellation,
1999 Western Star Constellation,
1995 Western Star Heritage,
1996 Western Star Heritage,
1997 Western Star Heritage,
1999 Western Star Heritage.
|
| Bulletin Date: | May. 1, 2011 |
| Component: | Front suspension springs. |
| Bulletin Summary: | Western star trucks: the rear suspension air-spring assembly has been redesigned. |
| Vehicles covered in this TSB: |
1995 Western Star Constellation,
1996 Western Star Constellation,
1997 Western Star Constellation,
1998 Western Star Constellation,
1999 Western Star Constellation,
2001 Western Star Constellation,
2009 Western Star Constellation,
2010 Western Star Constellation,
2011 Western Star Constellation,
2012 Western Star Constellation,
Western Star Constellation,
1995 Western Star Heritage,
1996 Western Star Heritage,
1997 Western Star Heritage,
1999 Western Star Heritage,
Western Star Heritage.
|
| Bulletin Date: | May. 1, 2011 |
| Component: | Rear suspension axle non-powered axle assembly. |
| Bulletin Summary: | Western star trucks: instructions to remove, inspect, and reseal the lower pinion cover on the rear axles. |
| Vehicles covered in this TSB: |
1995 Western Star Constellation,
1996 Western Star Constellation,
1997 Western Star Constellation,
1998 Western Star Constellation,
1999 Western Star Constellation,
2001 Western Star Constellation,
Western Star Constellation,
1995 Western Star Heritage,
1996 Western Star Heritage,
1997 Western Star Heritage,
1999 Western Star Heritage,
Western Star Heritage.
|
| Bulletin Date: | May. 1, 2011 |
| Component: | Front suspension wheel bearing. |
| Bulletin Summary: | Western star trucks: information on wheel bearing lubrication in the rear axle. |
| Vehicles covered in this TSB: |
1995 Western Star Constellation,
1996 Western Star Constellation,
1997 Western Star Constellation,
1998 Western Star Constellation,
1999 Western Star Constellation,
2001 Western Star Constellation,
2009 Western Star Constellation,
2010 Western Star Constellation,
2011 Western Star Constellation,
2012 Western Star Constellation,
Western Star Constellation,
1995 Western Star Heritage,
1996 Western Star Heritage,
1997 Western Star Heritage,
1999 Western Star Heritage,
Western Star Heritage.
|
| Bulletin Date: | Mar. 1, 2011 |
| Component: | Engine. |
| Bulletin Summary: | Western star trucks: there are new cgi bellows due to current ones that are prone to failure. |
| Vehicles covered in this TSB: |
1995 Western Star Constellation,
1996 Western Star Constellation,
1997 Western Star Constellation,
1998 Western Star Constellation,
1999 Western Star Constellation,
2001 Western Star Constellation,
1995 Western Star Heritage,
1996 Western Star Heritage,
1997 Western Star Heritage,
1999 Western Star Heritage.
|
| Bulletin Date: | May. 1, 2009 |
| Component: | Hoses, lines/piping, and fittings. |
| Bulletin Summary: | Western star: vehicles equipped with an mbe4000 engine and an alliance fuel/water separator may have insufficient clearance between the engine mounted fuel line and the frame rail mounted fuel/water separator mounting bracket. No model yea |
| Vehicles covered in this TSB: |
2001 Western Star Constellation,
1999 Western Star Heritage.
|
| Bulletin Date: | May. 1, 2009 |
| Component: | Fuel hoses, lines/piping, and fittings. |
| Bulletin Summary: | Western star: vehicles equipped with an mbe4000 engine and an alliance fuel/water separator may have insufficient clearance between the engine mounted fuel line and the frame rail mounted fuel/water separator mounting bracket. No model yea |
| Vehicles covered in this TSB: |
2001 Western Star Constellation,
1999 Western Star Heritage.
|