WenmarOpen by Wenmar Pro

Service bulletin TIB-44-17

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10027646
Published by NHTSA2009-01-28
Manufacturer's numberTIB-44-17
Manufacturer's date2008-10-23
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

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

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions

Vehicles listed
KENWORTH 9532008
KENWORTH AEROCAB1994 to 1995
KENWORTH C5001994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
KENWORTH C5002006 to 2008
KENWORTH C548CH2008
KENWORTH CONVENTIONAL1994 to 1996
KENWORTH CONVENTIONAL1999
KENWORTH CONVENTIONAL2003
KENWORTH CONVENTIONAL SERIES2000
KENWORTH K1001996, 1997, 1998, 1999, 2000, 2001
KENWORTH K1002004
KENWORTH K100E2002, 2003
KENWORTH K3002000, 2001
KENWORTH K5002008
KENWORTH KENWORTH1994 to 2001
KENWORTH KENWORTH2003
KENWORTH MB 552005 to 2007
KENWORTH T1702007 to 2008
KENWORTH T20001995
KENWORTH T20001996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
KENWORTH T20002006 to 2008
KENWORTH T2702007 to 2008
KENWORTH T3001996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
KENWORTH T3702007 to 2008
KENWORTH T4001995, 1996, 1997
KENWORTH T4501995
KENWORTH T6001995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
KENWORTH T6002006 to 2008
KENWORTH T600B1994, 1995, 1996 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH T6602004 to 2008
KENWORTH T8001994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
KENWORTH T8002006 to 2008
KENWORTH T800B1995, 1996 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH T800B2000 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH T9002002
KENWORTH W9001994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
KENWORTH W9002006 to 2008
KENWORTH W900B1995, 1996, 1997 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH W900L1994 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH W900L1997 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH W900L1999 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20092562009-09-08. Emissions
09V3480002009-09-03. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
20092472009-08-19. Engine
07V2790002007-06-28. ENGINE AND ENGINE COOLING
20072042007-06-20. Engine
20063212006-11-22. Engine
20054022005-12-22. Engine
05V5700002005-12-22. ENGINE AND ENGINE COOLING
05V0840002005-03-04. ENGINE AND ENGINE COOLING
20042962004-08-23. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
P0012026-09-29. Service bulletin. "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
01-0752019-12-04. Service bulletin. Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB-E-0552012-08-22. Service bulletin. KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES. MODELS T660, T800, T700, AND W900. *PE
TIB-E0112011-08-16. Service bulletin. PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM
TIB-E-0092011-08-16. Service bulletin. PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM
TIB-42-482011-08-16. Service bulletin. PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR. *RM
TIB-42-0432011-08-16. Service bulletin. PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE. *RM
TIB-41-0142011-08-16. Service bulletin. PACCAR: THERE ARE COOLING MODULES THAT MAY HAVE A LOOSE CONNECTION AT THE CHARGE AIR COOLER MOUNTING. *RM
TIB-45-362009-09-29. Service bulletin. KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THIS IS A FIELD CAMPAIGN TO MODIFY THE TURBOCHARGER OIL DRAIN PLUMBING. MODEL T300, MY 12/13/06-07/09/08. CSC LETTER REC'D. *PE
TIB-45-352009-03-26. Service bulletin. KENWORTH TRUCKS: PX-8 AND CUMMINS ISL ENGINE CALIBRATION CAMPAIGN C0844. UPGRADE ENGINE CONTROL SOFTWARE FOR PACCAR PX 8 AND CUMMINS ISL ENGINES TO ENHANCE PERFORMANCE AND RELIABILITY. *PE