Vehicle report

2003 INTERNATIONAL WORKSTAR

Service bulletins

89 bulletins

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.

IK4300035

Service Bulletin/Repair Instructions

This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files. It allows users to quickly load files either manually or directly from the Diamond Logic Builder Vehicles folder using VIN-based selection. As files are added or removed, the comparison runs automatically with no manual action required. The program presents results in an interactive table that shows feature codes, descriptions, access levels, and whether each feature is present in each selected file. Built-in search, filtering, and sorting make it easy to locate specific features or focus only on differences between files. Column visibility can be customized to show or hide descriptions and access information as needed. Users can remove files individually or clear all files at once, with results updating instantly. The tool also includes reporting and export options that reflect exactly what is visible on screen, allowing results to be printed, copied, saved as text, or exported to CSV for use in Excel or other spreadsheet tools. Overall, the program streamlines the process of comparing vehicle feature configurations, helping users quickly identify differences, validate setups, and document results without manual comparison or external tools.

IK2600256

Service Bulletin/Repair Instructions

This article is intended to provide information for how to program International Engines that have been sold to another company and installed in a chassis that does NOT have an International VIN Number. This may include Detroit Series 40 engines, Perkins, Street Sweepers, Cranes, Fire Trucks, Generators, Blower motors, and more.

IK2600300

Service Bulletin/Repair Instructions

This article equips technicians with the knowledge and steps needed to efficiently replace and program N9/N10 and N13 modules, while addressing potential baud rate incompatibility issues between the replacement module and the vehicle.

IK2600047

Service Bulletin/Repair Instructions

Engine replacements for all International engines will need to follow this procedure.

IK1600272

Service Bulletin/Repair Instructions

This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.

IK2600279

Service Bulletin/Repair Instructions

This document provides: Steps to take when switch pack programming fails, or when switch pack disappears after body control module update Sample scenarios Additional information to assist readers in understanding DLB switch pack programming

IK0600030

Service Bulletin/Repair Instructions

This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes. (Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)

IK1201009

Service Bulletin/Repair Instructions

In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of humidity, an operator may experience engine stalling, low performance, and or poor aftertreatment performance. This is caused by condensation accumulating and freezing within the Charge Air Cooler (CAC); affecting air flow into the engine. This article lists all the currently available winter front covers that can be installed on the front grille and bumper to reduce cold air flow to the engine compartment.

IK3400001

Service Bulletin/Repair Instructions

Title: Service Portal iKNow Feedback Case Types Applies To: All

IK1400005

Service Bulletin/Repair Instructions

Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles

IK1900022

Service Bulletin/Repair Instructions

Title: A/C Refrigerant and Oil Capacities Applies To: All current models

IK0900157

Service Bulletin/Repair Instructions

Title: Fan belt replacement guidelines for frayed edges Applies To: All Models

IK1200716

Service Bulletin/Repair Instructions

Title: Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check

IK0500054

Service Bulletin/Repair Instructions

Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears

IK2600286

Service Bulletin/Repair Instructions

Title: Vehicle Programming Information for Engine: Single Box 1998-2004 I6 & V8 Applies To: Single Box 1998-2004 I6 & V8

IK2600069

Service Bulletin/Repair Instructions

Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines

IK0300078

Service Bulletin/Repair Instructions

This document reminds technicians of the critical relationship between the truck's suspension and the driveline operating angles. The information applies to diesel, gas, and electric vehicles.

IK1400023

Service Bulletin/Repair Instructions

This article addresses chassis lean conditions on all chassis. This does not include any diagnostics for body leans such as a cab lean. Keep in mind that a chassis lean may cause or accentuate a cab lean. Filling out the printable form and using the notes in blue will help you to determine the source of the lean and identify the action and parts required to correct the lean.

IK0200013

Service Bulletin/Repair Instructions

Suggested alignment target values when performing a vehicle axle alignment.

IK0800407

Service Bulletin/Repair Instructions

Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.

IK0800351

Service Bulletin/Repair Instructions

J1939 Data Link Source Address Information

IK1201472

Service Bulletin/Repair Instructions

Pico Scope CCOS (Crankcase Separator Test)

IK0800605

Service Bulletin/Repair Instructions

PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics

IK0800606

Service Bulletin/Repair Instructions

PicoScope Test 12V Electrical Noise Detection

IK0800607

Service Bulletin/Repair Instructions

PicoScope Test - Battery Loss of Charge - Parasitic Draw Test

IK0800609

Service Bulletin/Repair Instructions

PicoScope Test for Datalink (CAN) Health Shorts & opens

IK0800610

Service Bulletin/Repair Instructions

PicoScope Test Resistance and Ohmmeter

IK0800611

Service Bulletin/Repair Instructions

PicoScope Wheel Speed Sensor Test

IK1201469

Service Bulletin/Repair Instructions

PicoScope Test One Channel RCT

IK1600145

Service Bulletin/Repair Instructions

Front cab mount bushings/insulators MV, HV, DuraStar, and WorkStar vehicles used in severe vocations

IK1600131

Service Bulletin/Repair Instructions

Cab water leak troubleshooting tips; HX with steel cab only

IK2600052

Service Bulletin/Repair Instructions

Calculating pulses per mile (speedometer setting); only models equipped with International engines

IK0800074

Service Bulletin/Repair Instructions

Dual Drive Cab Throttle Position Harness for APS/IVS throttle pedals; only models with both left hand and right hand drive.

IK0800080

Service Bulletin/Repair Instructions

J1939 Data Link Troubleshooting

IK1000003

Service Bulletin/Repair Instructions

Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps

IK1201299

Service Bulletin/Repair Instructions

Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines

IK0400040

Service Bulletin/Repair Instructions

General wheel speed sensor troubleshooting

IK0700112

Service Bulletin/Repair Instructions

Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems

IK0100051

Service Bulletin/Repair Instructions

Frame Rail Straightness Inspection Procedure

IK1600233

Service Bulletin/Repair Instructions

Cab Lean Concern

IK2600185

Service Bulletin/Repair Instructions

Codes 141, 142, and 621 in a 2-box ECM/IDM; only models with 2-box ECM/IDM from 2003-2007

IK0800504

Service Bulletin/Repair Instructions

Repair Procedures for Vehicles Struck by Lightning

IK1600258

Service Bulletin/Repair Instructions

Cleaning and Disinfecting Trucks and Buses

IK0400159

Service Bulletin/Repair Instructions

Bendix EC80 Blank Module Replacement Program; This document will guide the user through selecting the correct ABS module when it has been determined a replacement is needed. Only Models with EC-80 ABS Controller

IK0800224

Service Bulletin/Repair Instructions

Power Distribution Center (PDC) Replacement; 7000 (Workstar) Model Series with Allison or Manual Transmissions

NPN

Service Bulletin/Repair Instructions

DUAL STEERING GEAR AIR BLEED PROCEDURE

IK0800038

Service Bulletin/Repair Instructions

Park Lights Come Whenever the Key is On

IK0500059

Service Bulletin/Repair Instructions

Steering Noise in Vehicles Equipped with Dual Steer

4328530R1

Service Bulletin/Repair Instructions

Tool Instruction - BCM Programming Harness

IK0800475

Service Bulletin/Repair Instructions

Radio Diagnostics and Information

IK4300001

Service Bulletin/Repair Instructions

Updating OnCommand Link with Accelerator

IK1200921

Service Bulletin/Repair Instructions

ISX, N13, and N9 / N10 Aftertreatment Private Data Link Troubleshooting

IK2700100

Service Bulletin/Repair Instructions

OnCommand EZ-Tech

IK2500511

Service Bulletin/Repair Instructions

Using Supplier Software to Check DTCs

IK0800341

Service Bulletin/Repair Instructions

Trailer Auxiliary Switch Lamp Burning Out; Only Vehicles Equipped with Feature Code 0008TTH or 0008THG

IK0700097

Service Bulletin/Repair Instructions

NEW Ultrasonic DEF Tank Sending Unit; only models with SCR Aftertreatment system.

IK0700096

Service Bulletin/Repair Instructions

Urea Quality Sensor (UQS) Supplemental Diagnostic and Service Information; only models with SCR Aftertreatment system and N9, N10, N13, A26 or Cummins ISB, ISL, ISX engines built from January 2016

IK0800546

Service Bulletin/Repair Instructions

HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM

IK2900030

Service Bulletin/Repair Instructions

Dealer EZ-Tech and Diagnostic Software Support Resource Center

IK1201363

Service Bulletin/Repair Instructions

CPA Injector Misfire Detection; Only models with 2004 thru 2017 International engines.

IK1201360

Service Bulletin/Repair Instructions

Cylinder Performance Analyzer (CPA) Resource Center; Only models with 2004 thru 2017 International engines.

IK2700090

Service Bulletin/Repair Instructions

OnCommand EZ-Tech Download Center

IK0500038

Service Bulletin/Repair Instructions

Steering Shake, Shimmy, Shudder, or Steering Vibration; only with 14k front weight rated axles and below

IK0500058

Service Bulletin/Repair Instructions

Steering Fluids

IK1201248

Service Bulletin/Repair Instructions

Cooling System Flush Procedure

IK0800522

Service Bulletin/Repair Instructions

Repair Information for Damaged Headlight Connector

IK0800374

Service Bulletin/Repair Instructions

To Get A Helios Capture; All 1939 and 1708 multiplexed trucks only

IK1200029

Service Bulletin/Repair Instructions

RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE

IK1600207

Service Bulletin/Repair Instructions

Wind noise at upper side door

IK0800521

Service Bulletin/Repair Instructions

Remote Power Module (RPM) Visual Inspection Guidelines

IK0800414

Service Bulletin/Repair Instructions

Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative

IK1900212

Service Bulletin/Repair Instructions

Front Blower Motor Runs Breifly At Initial Power Up

IK1100005

Service Bulletin/Repair Instructions

Eaton Clutch Information

IK1500005

Service Bulletin/Repair Instructions

Dual Fuel Tank Transfer Pump System With Two Wire Pump Troubleshooting; equipped with feature 595192 built after 08/19/2002

IK0800092

Service Bulletin/Repair Instructions

The First Check to make when Troubleshooting any Body Controller or ESC Issue

IK0800485

Service Bulletin/Repair Instructions

Cluster Software Update Instructions

IK1600202

Service Bulletin/Repair Instructions

COWL TRAY SEAL; ONLY BUILT PRIOR TO 11/11/2013

IK0800015

Service Bulletin/Repair Instructions

REMOTE POWER MODULE (RPM) TROUBLESHOOTING ON PRE-2007 MEDIUM DUTY TRUCKS

IK0500008

Service Bulletin/Repair Instructions

Lubrication to the Intermediate Steering Column Upper U-Joint

IK1300038

Service Bulletin/Repair Instructions

Transmission Control Module Relocation; only with Allison WT Gen 3 Transmission

IK1300064

Service Bulletin/Repair Instructions

Manual Shift Lever Jumps Out of Gear; built during specific build dates noted in document

IK1200145

Service Bulletin/Repair Instructions

On/Off Fan Drive Not Working With AC on Vehicles with ESC; only pree 2007 models equipped with ESC.

IK0800014

Service Bulletin/Repair Instructions

City Horn Blows When Driver Shuts off Truck and Walks Away; only equipped with with ESC or Body Controller

IK1200058

Service Bulletin/Repair Instructions

Air Cleaner Snow Valve Replacement; Trucks with pre-2007 Emmissions Cummins Engines Only

IK0800352

Service Bulletin/Repair Instructions

Body Controller/ESC Software Updates

IK0800169

Service Bulletin/Repair Instructions

How to Change From a 5 Wire Fuel Transfer Pump to a 2 Wire Fuel Transfer Pump

IK0800021

Service Bulletin/Repair Instructions

ESC Diagnostic Trouble Code (DTC) Index

IK0500007

Service Bulletin/Repair Instructions

Adjustment Procedure for Tilt Only Steering Column; only models with Feature code 0005708

IK1900074

Service Bulletin/Repair Instructions

Wiper Troubleshooting

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2003 International Workstar Service Bulletins: 89 bulletins | CarFathom