Western Star Constellation 1998

Model Constellation made in 1998 by Western Star got 21 service bulletins. Technical service bulletines regarding engine and engine cooling, equipment adaptive and equipment.

Constellation year 1998

Technical Service Bulletins

Model 1998

Bulletins

Bulletin	Bulletin date	Item no.	Summary	Added
ENGINE AND ENGINE COOLING - ENGINE
SB-49-8	03/01/2011	10038246	Western star trucks: there are new cgi bellows due to current ones that are prone to failure. *rm	06/14/2011
SB-49-8	03/01/2011	10038246	Ready	06/14/2011
ENGINE AND ENGINE COOLING - ENGINE - DIESEL
SB-49-12	05/01/2012	10044353	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. *pe	06/13/2012
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
SB-49-7	12/01/2010	10036725	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. *pe	04/11/2011
EQUIPMENT ADAPTIVE
SB-32-10	02/01/2009	10028724	Western star: some barksdale height control valves have been returned for warranty because four bolts in the valve housing were overtightened, often, enough to crack valve housing. model years unknown. *pe	05/19/2009
EQUIPMENT - MECHANICAL
SB-32-10	02/01/2009	10028724	Western star: some barksdale height control valves have been returned for warranty because four bolts in the valve housing were overtightened, often, enough to crack valve housing. model years unknown. *pe	05/19/2009
EQUIPMENT - OTHER - OWNERS/SERVICE/OTHER MANUAL
SB-32-10	02/01/2009	10028724	Western star: some barksdale height control valves have been returned for warranty because four bolts in the valve housing were overtightened, often, enough to crack valve housing. model years unknown. *pe	05/19/2009
EQUIPMENT - RECREATIONAL VEHICLE
SB-32-10	02/01/2009	10028724	Western star: some barksdale height control valves have been returned for warranty because four bolts in the valve housing were overtightened, often, enough to crack valve housing. model years unknown. *pe	05/19/2009
FUEL SYSTEM, DIESEL
SB-49-12	05/01/2012	10044353	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. *pe	06/13/2012
POWER TRAIN - DRIVELINE - CENTER SUPPORT BEARING
35-7	02/01/2012	10043820	Western star: lubricate wheel bearings, rear drive axles. *js	04/27/2012
STEERING - HYDRAULIC POWER ASSIST - PUMP
SB-46-9	05/01/2011	10039624	Ready	08/05/2011
SB-46-9	05/01/2011	10039624	Western star trucks: the procedure to replace the power steering pump with a different version pump. *rm	08/05/2011
STRUCTURE - FRAME AND MEMBERS
SB-31-7	08/01/2009	10031844	Western star truck: 5 piece back of cab service crossmember. 5 piece bolted service crossmembers are an improved, more durable service replacement for the tubular back of cab crossmembers. follow steps to replace a tubular back of cab cr	01/13/2010
SUSPENSION - FRONT - SPRINGS - AIR SUSPENSION SYSTEM
SB-32-13	05/01/2011	10039621	Western star trucks: the rear suspension air-spring assembly has been redesigned. *rm	08/05/2011
SB-32-13	05/01/2011	10039621	Ready	08/05/2011
SUSPENSION - FRONT - WHEEL BEARING
35-7	02/01/2012	10043820	Western star: lubricate wheel bearings, rear drive axles. *js	04/27/2012
SB-35-07	05/01/2011	10039623	Ready	08/05/2011
SB-35-07	05/01/2011	10039623	Western star trucks: information on wheel bearing lubrication in the rear axle. *rm	08/05/2011
SUSPENSION - MULTIPLE AXLE
35-7	02/01/2012	10043820	Western star: lubricate wheel bearings, rear drive axles. *js	04/27/2012
SUSPENSION - REAR - AXLE - NON-POWERED AXLE ASSEMBLY
SB-35-06	05/01/2011	10039622	Western star trucks: instructions to remove, inspect, and reseal the lower pinion cover on the rear axles. *rm	08/05/2011
SB-35-06	05/01/2011	10039622	Ready	08/05/2011