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2007 Kenworth T800 TSBs

34 Technical Service Bulletins across 11 categories

Engine

14 bulletins
10045240

KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES.

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

10045239

KENWORTH: REGARDING UPDATE INFORMATION FOR ENGINE BRAKE AND THROTTLE PEDAL POSITION RETURN RANGE, WHICH WAS TOO NARROW...

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TO ENGAGE AND ENGINE BRAKE WAS NOT ENGAGING. *PE

10040384

PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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THERE HAVE BEEN UPDATES TO THE ENGINE SOFTWARE. *RM

10040181

PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS.

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*RM

10040180

PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON.

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*RM

10030406

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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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

10028346

KENWORTH TRUCKS: PX-8 AND CUMMINS ISL ENGINE CALIBRATION CAMPAIGN C0844.

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

10028327

KENWORTH TRUCK: AIR INTAKE FOR PRE-2007 ISM ENGINE IN T800 SHORT HOOD CHASSIS.

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

10027664

KENWORTH TRUCKS: THE INLET PIPE CONNECTIONS FOR ISX ENGINES.

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

10027646

KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION.

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

10025758

KENWORTH (PACCAR): THE VERTICAL TAILPIPE(S) DIFFUSER TURNS.

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

10025757

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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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

10022829

COLLECTION OF DPF AND ENGINE PART/SERIAL NUMBERS COMAPAIGN.

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*KB

10022828

ENGINE DIPSTICK REPLACEMENT CAMPAIGN.

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*KB

Electrical

4 bulletins
10177021

Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the...

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

10173212

Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...

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to water intrusion and corrosion in some vehicles.

10173205

Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.

10023671

KENWORTH - IN-CAB BATTERY BOX FLOOR BRACKET CAMPAIGN -- ADDITIONAL RETAINING NUTS & WASHERS ARE REQUIRED ON THE BATTERY BOX SECURING PLATES.

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2007 MODEL YEAR T800S & W900S BUILT BETWEEN 2/19/07 AND 4/30/07. *NJ

Other

3 bulletins
11038708

Due to supplier constraints, an authorized aftermarket surge tank has been made available.

11037541

"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.

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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."

10040036

PACCAR INC: FIRE TRUCK SEAT HEIGHT SPECIFICATION CHANGE.

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*RM

Body & Paint

3 bulletins
10188550

Information Only Windshield washer pumps have a high No Trouble Found rate.

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

10032567

KENWORTH TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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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

10024099

KENWORTH - WINDSHIELD GASKET AND URETHANE ANALYSIS.

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MODELS T600, T800, AND W900. *NJ

Pre-Delivery & Maintenance

3 bulletins
10027666

KENWORTH CHASSIS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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

10026061

KENWORTH: FEDEX TRAILER CABLE REPLACEMENT CAMPAIGN.

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CHASSIS BUILT BETWEEN 08/10/07-11/13/07 FOR FEDEX CUSTOMERS. *PE

10025307

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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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

Brakes

2 bulletins
10027784

KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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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 IS INSTALLED. CSC LETTER WAS RECEIVED. *PE

10024921

WINDSHIELD REPAIRS ON CONVENTIONAL CABS.

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ALL C500'S, T300'S, T600'S, T800'S AND W900'S EQUIPPED WITH CURVED GLASS. MODEL YEAR UNKNOWN. *NJ

HVAC & Climate

1 bulletin
10168703

Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...

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A/C compressor.

Lighting

1 bulletin
10056911

KENWORTH: SOME TRUCKS FAILED TO MEET COMPANY STANDARDS FOR AIR VOLUME LIFT AXLE AND THE COMPANY WILL INCREASE AIR...

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

Fuel System

1 bulletin
10044799

KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

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

Transmission

1 bulletin
10040167

PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR.

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*RM

Suspension

1 bulletin
10040166

PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE.

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*RM