Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 526 bulletins for WESTERN STAR
FL-581-AB
Jan 1, 2011
017300 STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT
DAIMLER TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A STEERING COMPONENT MAY CRACK AND POSSIBLY BREAK UNDER SEVERE STEERING CONDITIONS. THIS MAY RESULT IN LESS STEERING CONTROL. *RM
SB-60-23
Jan 1, 2011
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
DAIMLER TRUCKS: SOME WESTERN STAR VEHICLES MAY HAVE ENGINE COVER INSULATION COME LOOSE AND FALL DOWN ON THE ENGINE. *RM
SB-60-24
Dec 1, 2010
161000 STRUCTURE:FRAME AND MEMBERS
WESTERN STAR: CAB FRONT CROSSMEMBER RETROFIT; 109BBC RAISED CAB. SOME RAISED CAB TRUCKS HAVE EXPERIENCED FAILURES OF THE CAB FRONT CROSSMEMBER AN ALTERNATE CROSSMEMBER HAS BEEN DESIGNED. NO MODEL YEARS LISTED. *PE
SB-46-8
Jan 1, 2010
013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
WESTERN STAR: TRW TAS85 STEERING GEAR INTERNAL LEAKAGE TEST. SOME TRW TAS85 STEERING GEARS HAVE BEEN EQUIPPED WITH AN INTERNAL RELIEF VALVE. THESE STEERING GEARS ARE TYPICALLY INSTALLED WITH POWER STEERING PUMPS THAT HAVE A PRESSURE RELI
SB-31-7
Aug 1, 2009
161000 STRUCTURE:FRAME AND MEMBERS
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
SB-88-11
Jun 1, 2009
162800 STRUCTURE:BODY:HOOD
WESTERN STAR TRUCK: SOME TRUCKS (4900FA, 123BBC) WITH HOOD SALES CODE 644-002, MAY DEVELOP CRACKS AT THE INNER FENDER, NEAR THE NUTPLATE FOR THE HOOD GUIDE. THE STEEL PIVOT STRUCTURE CAN ALSO CRACK, OUTBOARD OF THE HOOD PIVOT CLEVIS. NO MO
SB-47-10
May 1, 2009
072200 FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
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
FSC-410A
Apr 1, 2009
071100 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
WESTERN STAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN VEHICLES MAY HAVE BEEN BUILT WITH 25 INCH DIAMETER FUEL TANK LEVEL SENDER ARMS AND FLOATS THAT MAY CONTACT THE TANK WALL AND GET STUCK, POSSIBLY RESULTING
SF371AB
Jan 1, 2008
015200 STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
FREIGHTLINER - WESTERN STAR POWER STEERING RESERVOIR BRACKETS. MODELS AFFECTED: SPECIFIC FREIGHTLINER WESTERN STAR 4900 VEHICLES MANUFACTURED BETWEEN MAY 26, 2006 AND JULY 26, 2007. *NJ
67001WS002
Sep 21, 2001
162800 STRUCTURE:BODY:HOOD
CONCERNS REGARDING CRACKS APPEARING AROUND THE PIVOT AREA ON THE 49SX HIGH VISIBILITY HEAVY DUTY HOODS. *TT
67001WS003
Sep 21, 2001
162800 STRUCTURE:BODY:HOOD
CONCERNS FROM THE FIELD OF CRACKS APPEARING AROUND THE PIVOT AREA ON THE 49SX HIGH VISIBILITY HEAVY DUTY HOODS. *TT
GSL01041
Jun 27, 2001
061100 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
SUBJECT REGARDING NEW EXTENDED ENGINE COVERAGE OPTIONS. *TT
66001WS001
Jun 22, 2001
160000 STRUCTURE
SUBJECT REGARDING THE REDESIGN OF THE FRONT CAB CROSSMEMBER CLAMP. *TT
67001SW002
Jun 21, 2001
162800 STRUCTURE:BODY:HOOD
SUBJECT REGARDING REPORTS OF CRACKS APPEARING AROUND THE PIVOT AREA ON THE 49SX HIGH VISIBILITY HEAVY DUTY HOODS. *TT
GSL01027
May 25, 2001
021600 SUSPENSION:FRONT:WHEEL BEARING
INFORMATION REGARDING MERITOR COVERAGE OF UNITIZED WHEEL HUB BEARINGS. *JB
GSL01028
May 25, 2001
980000 UNKNOWN OR OTHER
SUBJECT PERTAINING TO DANA DRIVESHAFT EXTENDED COVERAGE. *JB
61301WS001
Apr 27, 2001
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
SUBJECT REGARDING RED DOT AUTOMATIC TEMPERATURE CONTROL ECU. *TT
67001WS001
Apr 27, 2001
162000 STRUCTURE:BODY
SUBJECT REGARDING 49SX HIGH VISIBILITY HOOD FENDER VIBRATION EXPERIENCED ON ROUGH ROADS. *TT
81401WS001
Apr 10, 2001
116100 ELECTRICAL SYSTEM:IGNITION:SWITCH
CONCERNS THAT THE COLE HERSEE CAB DISCONNECT SWITCH MAY BE PRONE TO CORROSION WHICH COULD RESULT IN A TRUCK NO-START CONDITION. *TT
GSL01004
Apr 3, 2001
980000 UNKNOWN OR OTHER
INFORMATION ON PURCHASING CUSTOMER PROTECTION PLANS TO INCREASE THE VALUE OF THE WESTERN STAR TRUCK BY OFFERING A VARIEYT OF PLANS FOR CUSTOMERS TO HELP OFFSET EXPENSES FACED FOR FAILURES AFTER THE EXPIRTATION OF TRUCK WARRANTY.
GSL01014
Mar 26, 2001
980000 UNKNOWN OR OTHER
SUBJECT REGARDING CUSTOMER PROTECTION PLANS FOR MODEL YEAR 2002 - REMINDER. *TT
GSL01016
Mar 26, 2001
980000 UNKNOWN OR OTHER
SUBJECT REGARDING WARRANTY POLICY CHANGES EFFECTIVE WITH MODEL YEAR 2002 TRUCKS - REMINDER. *TT