Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 440 bulletins for KENWORTH
TIB-44-17
Oct 23, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION. ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE
43-12
Oct 16, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. KENWORTH (PACCAR CO): CLEAN GAS INDUCTION (CGI) FLEX PIPE INSPECTIONS. CHASSIS WITH CATERPILLAR 2007 EMISSIONS COMPLIANT ENGINES, C9, C13 OR C15, SHOULD HAVE THE CGI
TIB-41-12
Oct 16, 2008
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
KENWORTH TRUCKS: THE INLET PIPE CONNECTIONS FOR ISX ENGINES. THE KENWORTH AIR INLET PIPE TO THE ISX TURBO MAY BECOME DETACHED. CHASSIS AFFECTED T2000, T800, AND W900. MODEL YEARS UNKNOWN. *PE
TIB-43-14
Oct 16, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
KENWORTH CHASSIS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CLEAN GAS INDUCTION (CGI) GASKET CAMPAIGN. CSC LETTER WAS RECEIVED. CHASSIS MODELS AFFECTED T2000, T660,T800 AND W900. MODEL YEARS 2005-08 *PE
TIB-26-14
Sep 17, 2008
102400 POWER TRAIN:MANUAL TRANSMISSION:LUBRICANT
KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CHASSIS' ORDERED WITH SYNTHETIC TRANSMISSION FLUID BUT MAY HAVE HAD NON SYNTHETIC FLUID INSTALLED AT THE KENWORTH FACTORY. CSC LETTER WAS RECEIVED. *PE
41-9
Sep 3, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
KENWORTH: THE ORIGINAL PUBLICATION IDENTIFIED CHASSIS WITH PX-8 ENGINES ONLY. PX-8 AND ISC ENGINES-ENGINE WARNING LIGHT ON. *PE
TIB-02-105
Aug 13, 2008
162800 STRUCTURE:BODY:HOOD
KENWORTH: HOOD LATCH RELEASE REPAIR. THE HOOD LATCH MAGNET MAY NOT BE STRONG ENOUGH TO HOLD THE LATCH IN RELEASE POSITION. *PE
TIB-13-26
Aug 6, 2008
046000 SERVICE BRAKES, AIR:ANTILOCK
KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. BENDIX ACOM REPORT CAMPAIGN. KENWORTH DOES NOT HAVE THE ABS ECU ACOM REPORT FOR CHASSIS LISTED. THE ABS ECU ACOM REPORT IS NECESSARY TO ENSURE THE PROPER ECU I
TIB-43-13
Aug 6, 2008
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. EXHAUST SPACER SHORTAGE CAMPAIGN. CHASSIS LISTED MAY HAVE BEEN MANUFACTURED WITHOUT EXHAUST SPACER(S). ONE OR BOTH OF THE SPACERS M80-1021 AND M80-1022 MAY NO
13-25
Jun 25, 2008
042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
KENWORTH: T300 CHECK VALVE CAMPAIGN: CHASSIS IDENTIFIED MAY HAVE BEEN BUILT WITH AN AIR SYSTEM SINGLE CHECK VALVE RATHER THAN A SINGLE CHECK PRESSURE REDUCTION (SCPR) VALVE. *PE
45-32
Jun 25, 2008
061000 ENGINE AND ENGINE COOLING:ENGINE
KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. OIL FILL SUPPORT BRACKET CAMPAIGN. AN ASSEMBLY PROCESS MAY HAVE RESULTED IN OMITTING AN OIL TUBE SUPPORT BRACKET. ORIGINAL PUBLICATION 6/11/2008. CSC WAS RECEIVED.
34-33
Jun 11, 2008
161000 STRUCTURE:FRAME AND MEMBERS
KENWORTH: FEDEX TRAILER CABLE REPLACEMENT CAMPAIGN. CHASSIS BUILT BETWEEN 08/10/07-11/13/07 FOR FEDEX CUSTOMERS. *PE
43-11
Jun 11, 2008
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
KENWORTH (PACCAR): THE VERTICAL TAILPIPE(S) DIFFUSER TURNS. AFFECTED: ALL T2000S, T660S, T800S AND W900S CHASSIS BUILT FROM 04/25/08 TO 02/11/08 WITH 2007 ENGINES. *PE
24-4
May 21, 2008
105400 POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING
KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. T170 DRIVELINE CENTERBEARING BRACKET CAMPAIGN. 67 T170S BUILT BETWEEN 06/26/07 AND 03/27/08. CENTERBEARINGS AND DRIVELINES ON CHASSIS LISTED WERE MOUNTED LOWER THAN K
02-104
Apr 30, 2008
131000 VISIBILITY:WINDSHIELD
WINDSHIELD REPAIRS ON CONVENTIONAL CABS. ALL C500'S, T300'S, T600'S, T800'S AND W900'S EQUIPPED WITH CURVED GLASS. MODEL YEAR UNKNOWN. *NJ
01-54
Mar 26, 2008
353000 EQUIPMENT:ELECTRICAL
KENWORTH CLEAN POWER SYSTEM HEATER TEMPERATURE CONTROL. ANY T660 BUILT SINCE 06/25/07, IF EQUIPPED WITH KENWORTH CLEAN POWER SYSTEM. *PE
41-10
Mar 5, 2008
061000 ENGINE AND ENGINE COOLING:ENGINE
RACOR HEAVY DUTY AIR INTAKE FILTER CAMPAIGN. 201 T300S ORDERED WITH SALES CODE 1081300 AND BUILT BETWEEN 01/02/06-12/03/07. *PE
5220
Oct 5, 2005
106000 POWER TRAIN:AXLE ASSEMBLY
NEW INTERIOR DIAGNOSTIC TIPS. THE KENWORTH NEW CAB INTERIOR INTRODUCED IN 2005 HAS MANY PERFORMANCE FEATURES THAT ARE DIFFERENT. KENWORTH. *TT
4530
Jun 6, 2005
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
COLLECTION OF DPF AND ENGINE PART/SERIAL NUMBERS COMAPAIGN. *KB
418
Jun 18, 2004
061000 ENGINE AND ENGINE COOLING:ENGINE
A CENTER STAND ASSEMBLY WITH THE CRASH ZONE SENSOR PRE-MOUNTED IS NOW AVAILABLE. *TT
4524
Oct 15, 2003
061000 ENGINE AND ENGINE COOLING:ENGINE
A LOWER COOLANT PIPE BLOWS OFF CONDITION. *TT
1627
Jun 18, 2003
020000 SUSPENSION
AG200 SUSPENSION - LONG LIFE SWAYBAR BUSHING RETROFIT FOR ALL AG200 CHASSIS. *TT
1628
Jun 18, 2003
020000 SUSPENSION
AG200 SUSPENSION - ONE PIECE SWAYBAR RETROFIT FOR ALL AG200 CHASSIS. *TT
0287
Apr 2, 2003
136100 VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING
WINDSHIELD WIPER CONTROL SWITCH - INTERMITTENT CYCLE. *TT
1626
Feb 19, 2003
020000 SUSPENSION
HENDERICKSON HAS NOTIFIED KENWORTH OF A DESIGN CHANGE TO THE SUSPENSION OUTBOARD FRAME BRACKETS. *TT