2006 Kenworth T800 TSBs

MODELS T660, T800, T700, AND W900. *PE

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C15 UPPER WATER PIPE REPLACEMENT CAMPAIGN. RADIATOR CORE MAY CRACK AROUND WATER INLET PORT. T800 WITH WIDE HOOD CONFIGURATION AND C15 ENGINES, BUILT 8/18/06-9/10/08. RADIATOR INLET PORT MAY EXPERIENCE HIGH LOADS AT INLET PIPE AND UPPER WATER HOSE, RESULTING IN A CRACK AT RADIATOR CORE. A SHORTER UPPER WATER PIPE, LONGER UPPER WATER HOSE AND SECOND PIPE BRACKET WILL REDUCE THESE LOADS. *PE

UPGRADE ENGINE CONTROL SOFTWARE FOR PACCAR PX 8 AND CUMMINS ISL ENGINES TO ENHANCE PERFORMANCE AND RELIABILITY. *PE

PREMATURE ENGINE WEAR DUE TO DIRT INGESTION INVOLVING THE 2002-07 T800 SHORT HOOD (SH) MODEL WITH CUMMINS ISM ENGINE. *PE

THE KENWORTH AIR INLET PIPE TO THE ISX TURBO MAY BECOME DETACHED. CHASSIS AFFECTED T2000, T800, AND W900. MODEL YEARS UNKNOWN. *PE

ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE

AFFECTED: ALL T2000S, T660S, T800S AND W900S CHASSIS BUILT FROM 04/25/08 TO 02/11/08 WITH 2007 ENGINES. *PE

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 FLEX PIPE INSPECTED FOR DAMAGE. MODEL YEARS UNKNOWN. *PE UPDATED 1/15/09. MODEL T2000, T660, T800 AND W900; YEARS 2005-2008. *PE UPDATED 1/27/09. CSC LETTER WAS RECEIVED. *8PE

*KB

appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.

to water intrusion and corrosion in some vehicles.

The customer communication requested return of unsold inventory to inspect alignment pins and knobs. The alignment pins may be weak which cause them to break and knob material may be weak which could cause them to break. Breaking of the alignment pins or knob could prevent adjustment of the climate control system.

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."

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Washer pumps may fail to spray due to a clogged filter.

METTON HOOD REPAIR CAMPAIGN. HOOD REINFORCEMENT CHANNEL CRACKING DUE TO UNIQUE, HARSH SERVICE CONDITIONS. NOTE: CODE 02107 IS NOT AN INSTRUCTION FOR DEALERS TO INITIATE INSPECTIONS OR UNDERTAKE REPAIRS, UNLESS THERE IS A CUSTOMER COMPLAINT. OPEN CAMPAIGN CODE 02107 IN SIR SIMPLY ESTABLISHES ELIGIBILITY FOR WARRANTY. CSC LETTER WAS REC'D. *PE

CLEAN GAS INDUCTION (CGI) GASKET CAMPAIGN. CSC LETTER WAS RECEIVED. CHASSIS MODELS AFFECTED T2000, T660,T800 AND W900. MODEL YEARS 2005-08 *PE

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. *PE

A/C compressor.

VOLUME FOR WORTHWHILE IMPROVEMENT TO EXCEED GOVERNMENT FMVSS 121. MODEL T800, W900. *PE

LINE FATIGUE FAILURE MAY BE DUE TO EXCESSIVE VIBRATIONS OF HIGH PRESSURE FUEL LINES AND DIESEL FUEL LEAK AND MALFUNCTION INDICATOR LAMP. *PE