Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
27-012
Service Bulletin/Repair Instructions
KW: A Transmission Control Module (TCM) software update is now available for certain T680, T880, and W990 chassis with Eaton Endurant transmissions, TCM software version R5.5 or later and an AT5 controller, where the TASPS fails. Please see the Eaton bulletin TAIB-1015 in the Attachments section for details. PB: A Transmission Control Module (TCM) software update is now available for certain Model 567, 579, and 589 chassis with Eaton Endurant transmissions, TCM software version R5.5 or later and an AT5 controller, where the TASPS fails. Please see the Eaton bulletin TAIB-1015 in the Attachments section for details.
02-160
Service Bulletin/Repair Instructions
Information Only â Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-015
Service Bulletin/Repair Instructions
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
32-016
Service Bulletin/Repair Instructions
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-085
Service Bulletin/Repair Instructions
Information Only â Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
01-075
Service Bulletin/Repair Instructions
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB-43-024
Service Bulletin/Repair Instructions
KENWORTH: INFORMATION IN BULLETIN PERTAINING TO POSSIBLE ENGINE DERATE BY WHICH THE DEF FILTERS ARE CLOGGED AND/OR CONTAMINATED DEF IS IDENTIFIED. *PE
TIB-43-23
Service Bulletin/Repair Instructions
KENWORTH: INFORMATION REGARDING REAR NOX SENSOR REPAIRS SHOULD INCLUDE SYSTEM UPDATES FOR CHASSIS OPERATING IN CONDITIONS WHICH RESULT IN MOISTURE RELATED SENSOR FAILURES WITH IMPROVED MOISTURE PROTECTION EXHAUST DESIGN FOR REAR NOX SENSOR. *PE
TIB-45-042
Service Bulletin/Repair Instructions
KENWORTH: INFORMATION PERTAINING TO UPDATING THE ENGINE ON CERTAIN TRUCKS FOR NEW PRODUCTIVE ENGINES. EMISSIONS LABEL WITH REQUIRED CLARIFICATION. *PE
TIB-E-045
Service Bulletin/Repair Instructions
KENWORTH: FOR CERTAIN TRUCKS, THE ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, AND AFTERTREATMENT CONTROL UNIT WILL BENEFIT FROM SOFTWARE UPDATES. *PE
TIB-42-49
Service Bulletin/Repair Instructions
KENWORTH: CERTAIN MODEL TRUCKS WILL HAVE AN INCOMPLETE DEAERATION WHEN RADIATOR IS DRAINED AND THEN REFILLED DUE TO AN IMPROPER COOLANT LINE ROUTING. *PE
TIB-42-043
Service Bulletin/Repair Instructions
PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE. *RM
TIB-42-48
Service Bulletin/Repair Instructions
PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR. *RM
TIB-E-020
Service Bulletin/Repair Instructions
PACCAR: A COOLANT SIEVE MUST BE REMOVED AT THE FIRST ENGINE OIL CHANGE. *RM
TIB-E011
Service Bulletin/Repair Instructions
PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM
TIB-E-009
Service Bulletin/Repair Instructions
PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM
TIB-E012
Service Bulletin/Repair Instructions
KENWORTH TRUCK: PACCAR MX ENGINE BOOST PRESSURE SENSOR WIRE CHAFING. CHASSIS WERE BUILT WITH WIRES FOR THE BOOST PRESSURE SENSOR THAT DO NOT MEET QUALITY STANDARDS WITH REGARD TO CHAFING, RUBBING OR RESISTANCE TO WEAR. RUBBING AND CHAFING COULD LEAD TO EXPOSED WIRES WHICH COULD RESULT IN FALSE SIGNALS TO THE ENGINE CONTROL MODULE WHICH COULD AFFECT ENGINE PERFORMANCE. *PE