2013 International Workstar TSBs
363 Technical Service Bulletins across 16 categories
Categories
Engine
100 bulletinsThis document aims to enable technicians to: 1.
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Accurately identify third generation MaxxForce medium duty engine control systems. 2. Understand the programming intricacies related to these systems. 3. Autonomously execute programming tasks without needing technical support.
This article is intended to provide information for how to program International Engines that have been sold to another...
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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.
This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature.
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Customer requested changes will be approved in accordance with the requirements specified in 40 CFR Part 1037 to ensure continued compliance with greenhouse gas (GHG) regulations.
New CARB Idle Reduction Change Request
Engine replacements for all International engines will need to follow this procedure.
In some geographic areas, ambient temperatures reaching below 15F (-10 C), including high levels of humidity, an...
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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.
Title: Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure Applies...
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To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check
Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or...
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Clean Idle Sticker, Clean Truck Check
Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or...
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PSI engine.
Rebuilding Cylinder Heads on Certain MaxxForce 11/13, N13, and A26 engines; 2010 to present.
How to request a horsepower quote; all International and Cummins engines
Snap-On torque wrench requirement for all big bore engine connecting rod bolts; A26, MaxxForce 13, N13 engines
New air compressor incorporates an oil feed dowel O-ring.
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Only models equipped with 2010 and newer MaxxForce 11/13 engines, all N13, and A26 engines
New Air compressor Incorporates an oil feed dowel O-ring; only models built with MaxxForce 11/13, N13, or A26 Engines
Rebuilding cylinder heads on certain EPA 2010 MaxxForce 11/13, N13, and A26 Engines
Starter diagnostics and warranty claim procedure for all engines and all chassis EXCLUDING vehicles equipped with PSI...
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engines or Cummins ISB engine with Allison transmissions
Rebuilding Cylinder Heads on Certain International MaxxForce 11/13 engines and all International N13 and A26 engines
Turbocharger oil supply tube retrofit; only models with 2010 emissions MaxxForce 11 and 13 engines and N13 engines
Calculating pulses per mile (speedometer setting); only models equipped with International engines
High Pressure Fuel Pump external leaks from weep hole.
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only trucks with 2010 MaxxForce 11/13L, all N13, or A26 engines
Oil leaks at the Bottom of the Oil Filter Module; Only International A26, N13, or 2010 and newer 11 and 13 engines
Engine Oil Capacities.
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All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
This VER will involve reviewing diagnostic codes, inspection of the EGR valve / EGR System, and may include EGR valve replacement.
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Only models with 2012 model year MaxxForce 13 engines and are registered in California or have California apportioned registration.
Snap-On torque wrench requirement for all big bore engine connecting rod bolt(s).
A26, N13, and 2010 EPA MaxxForce 11 and 13 engine Auxiliary Programable Parameters
Fuel Filters, Winter Additives, and Blending Fuels for Cummins Engines
Cab Odor Service Plan Information; only models equipped with EPA 2010 or later MaxxForce 11 or MaxxForce 13 engines
Stand Alone Real Time (SART) Module Diagnostics.
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Only 2010 and later models equipped with MaxxForce 11/13/15 engines or N13 with feature 0508051
The vehicles involved in this campaign were released from the plants with engines having an incorrect EPA emissions...
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label.
Air Compressor Replacement for Certain Vehicles with MaxxForce 13 Engines.
Ambient Air Temperature (AAT) senor faults; only models with 2010 EPA MaxxForce 11, 13 engines.
WorkStar Hybrid Mount to Pad Mount A/C Compressor Retrofit; only models with Cummins ISB 6.7 engine
Deaeration Hoses, Upper Manifold Sub-Assembly, and Coolant Control Valve (CCV) Removal and Installation; only models...
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equipped with MaxxForce 13 ED-HBD II or N13 SCR HD-OBD engines.
Deaeration Tank Hose Re-Route Engine Parameter Download Instructions
Oil Capacities; All Electronic International Engines 1994 - Present.
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Cummins ISB, ISM & ISX
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
ISB Starting System Diagnostics; Only models built with cummins ISB engines
Engine Oil Capacities All Electronic International Engines 1994 - Present.
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Cummins ISB, ISM & ISX
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure; only Navistar...
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Powered Trucks
Cummins Programming Guide and Cummins 285 Fault Code; Only pre-2007 models built with Cummins ISM Engine
LT EGR Core Removal and Insertion on MaxxForce 11, 13, and N13 engines
ECM Recalibration to provide engine protection against an increase in engine RPM while vehicle is idling (only in a...
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parked state or if vehicle is not moving); Only models equipped with MaxxForce 13 engine. Retired
Engine ECM recalibration prevent possible Diesel Particulate Filter (DPF) overload resulting in frequent exhaust system...
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regeneration events.
Snow Valve Light Staying ON and Motor Running Constantly
Certain MaxxForce 13 engines may experience increase in engine RPM while idling (only while vehicle is parked or...
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stopped).
The piston in the spring brake chamber may in certain cases, cause internal air leakage in the chamber.
Aftertreatment Resource Center; All models equipped with EPA 2007 and newer engines
Exhaust Gas Recirculation (EGR) Valve Replacement; Only models equipped with MaxxForce 11 or 13 engines.
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Retired
Certain 2010, 2011, and 2012 model year MaxxForce 11 engines do not meet EPA emissions requirements.
Updated Emission Control Information and CARB Clean Idle Label; Only models with MaxxForce 11, 13, 15 engines.
Remote Engine Speed Control Module (RESCM) Troubleshooting; Only trucks equipped with RESCM
DEF Tank Slow to Fill; Only models built with Cummins ISX 15L engine.
Phosphate Conditioner Required When Replacing Radiators; only models with EPA 2009.5, 2009.75 and 2010 MaxxForce 11,...
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13, 15 engines
Water In Fuel (WIF) Message Blinking in Dash Message Center at Key On; only models with International Engines
Horizontal Aftertreatment Mounting Bolt Torque; only models equipped with MF 11/13 engines
Aftertreatment Fuel Injector (AFTFI) Removal and Installation; onlt models equipped with MaxxForce 13 HD-OBD or N13...
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engines
Certain vehicles may have been built without the air line from air drier to engine purge valve fitting.
Deaeration Tank Hose Re-Route Engine Parameter Download Instructions; Only models marked with AFC12917
Snow Valve Light Staying ON and Motor Running Constantly
Allison Transmission Not Pre-selecting with Engine/Exhaust Brake; Only with Allison Transmission
In Chassis Cleaning Procedure for Cooling Package in All Models with MaxxForce 11, 13 Engines
Remote Throttle Control Options for Vehicles with ESC?s or Body Controllers and International Engines
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics; Only equipped with Maxxforce 11, 13 engines
LUK/Ixetic Power Steering Pump Fittings; only Vehicles equipped with Maxxforce 11, 13 engines
Urea Quality Sensor (UQS) Supplemental Diagnostic and Service Information; only models with SCR Aftertreatment system...
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and N9, N10, N13, A26 or Cummins ISB, ISL, ISX engines built from January 2016
HVAC line rub; only models equipped with Cummins ISB series engines and stationary grille feature code 009HBM
Ordering SCR Aftertreatment Parts for Vehicles Powered by Cummins Engines
Ordering SCR Aftertreatment Parts for Vehicles With Navistar Engines
Engine Oil Capacities
Cummins Engine Remote Engine Speed Control; only with feature code12XAT or 12XBM
Dash Cluster Lamp Operation, Functions and Regeneration Instructions, With International engines
CPA Injector Misfire Detection; Only models with 2004 thru 2017 International engines.
Cylinder Performance Analyzer (CPA) Resource Center; Only models with 2004 thru 2017 International engines.
A new calibration has been made available for emergency vehicles that prevents the possibility of engine derate or...
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eventual shutdown due to the potential need for aftertreatment regeneration during emergency service.
The engine intake grid heater power feed cable may have been improperly routed resulting in contact with a sharp metal...
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edge on the cab which could lead to possible chafing of the wire insulation and cause an intermittent electrical short.
This Emissions Recall applies to bus and truck models that were built with 2010, 2011, and 2012 MaxxForce DT, 9 and 10...
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engines.
Front Blower Motor Runs Breifly At Initial Power Up
Updated Snow Valve Motor and Harness Installation Procedure
N13, MaxxForce 11, 13 engine Two Cylinder Air Compressor Testing
Emergency vehicle calibration will reduce the engine exhaust soot levels that enter the aftertreatment system and...
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prevent the possibility of engine derate or eventual shutdown due to lack of performing exhaust system regeneration as a result of extensive idling typical of emergency vehicles.
Updated Snow Valve Motor and Harness Installation Procedure
Fuel Filters, Winter Additives, and Blending Fuels for Cummins ISX Engines
Davco Fuel Filter Replacements Recommendation for Maxx Force 11 and 13, 2010 Engines
Service replacement engines installed in the vehicles involved in this campaign were released from the engine assembly...
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plants with an incorrect Engine Emission Control Information Sticker.
Engine Cover Appears to be Scuffed
Updated Snow Valve Motor and Harness Installation Procedure
Cummins ISB Engine Remote Engine Speed Control with Feature 12XAT
REMOTE ENGINE SPEED CONTROL MODULE (RESCM) TROUBLESHOOTING
"CERTAIN WORKSTAR MODELS WITH FEATURE CODE 0508028 HEADLIGHTS IN BUMPER OPTION AND MANUFACTURED WITH HEAD LAMP HARNESS...
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PART NUMBER 3898445C92; THE HEADLIGHT LOW BEAM AND GROUND CIRCUITS ARE REVERSED AT THE HEADLIGHT CONNECTOR AND MAY RESULT IN THE LOW BEAM HEADLIGHTS TO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARDS FOR HEADLIGHT ILLUMINATION"
IK1201326 - SERVICE PARTS DAMAGED NEW TURBOCHARGER OIL SUPPLY TUBE
PERFORMING RELATIVE COMPRESSION TEST AND MISFIRE TEST WITH CPA TOOL
IK1201253 - EXHAUST MANIFOLD SERVICE PROCEDURES
IK1201157 - UPDATE FOR EXCESSIVE LUBRICATION OIL CONSUMPTION
MISFIRE DIAGNOSTICS IBB; SPN132(X) - FMI 31
TSB CONTAINS AN OWNER'S NOTIFICATION LETTER.
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SELECT DOCUMENT SEARCH BUTTON BELOW. A POTENTIAL ENGINE DERATE OR SHUTDOWN HAS BEEN DETERMINED IN CERTAIN DURASTAR AND WORKSTAR MODELS *CN
NAVISTAR: IN CERTAIN TRUCKS, AN EMISSIONS RECALL IS REQUIRED TO RECALIBRATE ENGINE ECM SOFTWARE TO REDUCE INCORRECT...
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FAULT CODES AND TO PREVENT OVERLOAD OF DIESEL PARTICULATE FILTER (DPF). *PE
IK: REPAIR INFORMATION REGARDING THE MISSING OR LOOSE BOLT ATTACHING HORTON STRATIS ANTI ROTATION BRACKET (ARB) TO ENGINE.
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MODEL PROSTAR, WORKSTAR, LONESTAR. NO YEARS LISTED. *PE UPDATED 6/27/2014 *JS UPDATED 11/7/14. *PE UPDATED 1/30/15. *PE
NAVISTAR: EMISSIONS RECALL ON CERTAIN TRUCKS THAT DO NOT MEET EMISSIONS REQUIREMENTS AND NEED INSTALLED AN UPDATED...
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ENGINE CONTROL MODULE (ECM) CALIBRATION TO BRING IT WITHIN SPECIFIED LIMITS OF CERTIFICATION. MODELS 2010-2013 PAYSTAR, PROSTAR, TRANSTAR, WORKSTAR WITH MAXXFORCE 11 ENGINES. *PE
NAVISTAR: HVAC FRONT INSIDE MODULE DRAIN REPAIR AND GREASE APPLICATION FOR EXHAUST GAS RECIRCULATION (EGR) VALVE.
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*KB
Other
63 bulletinsThis document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes.
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(Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)
Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
02/26/2025 - Additional LT Part Numbers Added to Table
J1939 Data Link Source Address Information
Diagnosis of chassis wander complaints.
J1939 Data Link Source Address Information
J1939 Data Link Troubleshooting
J1939 Data link source address information
Pico Scope CCOS (Crankcase Separator Test)
PicoScope Test One Channel RCT
PicoScope Test Resistance and Ohmmeter
PicoScope Test for Datalink (CAN) Health Shorts & opens
J1939 Data Link Source Address Information
J1939 Data Link Troubleshooting
How to obtain As built parameter list
Bendix Stability control - customer satisfaction performance improvement; Specific Emergency / Tanker applications only.
Cab Lean Concern
Driveline Information Center and Troubleshooting Procedures
Cleaning and Disinfecting Trucks and Buses
J1939 Data Link Troubleshooting
How To Get A Helios Capture; only 1939 and 1708 multiplexed buses and trucks
Wiper Troubleshooting
J1939 Data Link Source Address Information
Driveline Information Center and Troubleshooting Procedures
Programing New Key Fobs
Dash Cluster Stuck in one mode
Transfer case troubleshooting
Complaint of a new chassis with a frame bow; only chassis equipped with "dogbone" style crossmembers
Fan Blade Failures
Ethylene Glycol Coolant Color Change to be Phased-In Approximately April 1, 2004
Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
DEF Tank Slow to Fill; only models with 2013 Cummins ISX 15L
Low Temperature Radiator Diagnostics
To Get A Helios Capture; All 1939 and 1708 multiplexed trucks only
J1939 Data Link Troubleshooting; Only Models with 250k Baud Data Link (Black 9 Pin Diagnostic Connector)
J1939 Data Link Troubleshooting
NEW Ultrasonic DEF Tank Sending Unit; only models with SCR Aftertreatment system.
J1939 Data Link Troubleshooting
SCR Vehicles Setting 3363-16 (FC1713) due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
Retrieving Fault Codes Through the Cluster Doesn?t Work
Cooling System Flush Procedure
J1939 Data Link Source Address Information
J1939 Data Link Troubleshooting
Updating OnCommand Link with Accelerator
OnCommand EZ-Tech
Winter Front Usage
ISX, N13, and N9 / N10 Aftertreatment Private Data Link Troubleshooting
J1939 Data Link Troubleshooting
SCR Vehicles Setting 3363-16 (FC1713) due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
OnCommand EZTech
OnCommand EZ-Tech Download Center
Cluster Issues
Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
1939 Data Link Troubleshooting
The S-Cam tube bracket assemblies on steer axles may exhibit fractures between the wing bracket and the steel tube when...
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mounted to stamped spiders; with feature code 0504501, 0504504, or 0004EWM without feature code 0004WCS.
Transfer case troubleshooting; Only vehicles equipped with Transfer case
Ground Splice 6747 Causing Multiple Fault Codes
Power Distribution Center (PDC) Replacement
RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE
GEOTAB WITH WYE CABLE INSTALLATION
TEMPERATURE RADIATOR DIAGNOSTICS
Body & Paint
43 bulletinsThis article addresses chassis lean conditions on all chassis.
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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.
Cab water leak troubleshooting tips; HX with steel cab only
Cab water leak troubleshooting tips
Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
Day cab roof air deflector causing loud vibration noise at highway speed
Power Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Interior door handle seal
Updating Body Controller Software
Mirror Repair Procedures and Replacement Parts Availability
Power Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Cab Water Leak Troubleshooting Tips; Excluding 9000i, PayStar(HX), CityStar, or LoadStar
The First Check to make when Troubleshooting any Body Controller or ESC Issue
Wind noise at upper side of cab door
Vehicle Speed ( VSS ) Output for Bodybuilders
Headlight Operation and Troubleshooting; only Post 2007 Vehicles Built with a Body Controller
Body Controller Resource Center
Water entry into the cab / Adding Cowl tray seal; models built prior to 11/11/2013
Mirror Repair Procedures and Replacement Parts Availability; only models with Lang Mekra Mirrors
Power Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Power Windows randomly stop
Power Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Power Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
Mirror Repair Procedures and Replacement Parts Availability
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
Body Controller/ESC Software Updates
City Horn Blows When Driver Shuts off Truck and Walks Away; only equipped with with ESC or Body Controller
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
Mirror Repair Procedures and Replacement Parts Availability
Wipers and Aftertreatment Lights Inop on Post 2007 Trucks with Body Controller
Mirror Repair Procedures and Replacement Parts Availability
The First Check to make when Troubleshooting any Body Controller or ESC Issue
Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
Power Window Binding
Wind noise at upper side door
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
WIND NOISE AT UPPER SIDE DOOR
COWL TRAY SEAL; ONLY BUILT PRIOR TO 11/11/2013
MIRROR REPAIR PROCEDURES AND REPLACEMENT PARTS AVAILABILITY
WIND NOISE AT UPPER SIDE DOOR
POWER WINDOW BINDING
INTERNATIONAL: INFORMATION REGARDING ISSUE WITH POWER WINDOWS FAILING TO OPERATE PROPERLY OR POWER DOORS FAILING TO...
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LOCK OR WHEN WINDOW STOPS, BUTTON PRESSED AND WINDOW RESUMES OPERATION. MODELS TERRASTAR, DURASTAR, WORKSTAR, TRANSSTAR, PROSTAR AND LONESTAR. NO MODEL YEARS LISTED. *PE UPDATED 12/16/13. *PE UPDATED 12/18/13. *PE UPDATED 9/14/15 *CN
INTERNATIONAL: INFORMATIONAL PROCEDURES FOR REPAIRING CONNECTIONS FOR GROMMET PASS THROUGH DUE TO WATER LEAKAGE.
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MODELS TERRASTAR, DURASTAR, WORKSTAR, TRANSTAR, PROSTAR, LONESTAR. NO MODEL YEARS LISTED. *PE
Electrical
35 bulletinsThis document provides: Steps to take when switch pack programming fails, or when switch pack disappears after body...
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control module update Sample scenarios Additional information to assist readers in understanding DLB switch pack programming
This document details the procedure that must be followed to ensure proper alternator troubleshooting.
Cummins B6.7 Grid Heater Relay
General Wheel Speed Sensor Troubleshooting
PicoScope Wheel Speed Sensor Test
PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
PicoScope Test 12V Electrical Noise Detection
PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
Dual Drive Cab Throttle Position Harness for APS/IVS throttle pedals; only models with both left hand and right hand...
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drive.
General wheel speed sensor troubleshooting
Cummins B6.7 Grid Heater Relay
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
The Injection Pressure Regulator (IPR) harness wire may possibly break due to vibrational damage at the crimp/wire...
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interface.
Dual Throttle Pedal Harness Troubleshooting; only models with Dual Throttle Harness and Switch Installed.
Dual Drive Cab Throttle Position Harness for Converting Models to both Left and Right Hand Drive
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
Tool Instruction - BCM Programming Harness
ECM Recalibration to prevent possible frequent DPF level 1, 2, or 3 excessive soot levels and dash warning lights...
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between 1,000 and 1,500 miles; only models equipped with a 12X10 Diesel Particulate Filter (DPF). Retired
Dual Throttle Pedal Harness Troubleshooting; only Models with Dual Throttle Harness and Switch Installed
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
Remote Power Module (RPM) Troubleshooting
How to Add Lift Gate Battery Protection; only models equipped with Electronic System Controller (ESC) or Body Controller...
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(BC).
Location of 1000 OHM Resistor In the HVAC Wiring
HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
A jump start or electrical load dump event could result in an overvoltage condition of the cab Linear Power Module (LPM).
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The overvoltage condition could eventually cause overheating of the LPM circuit board.
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
Air Conditioning Electrical Diagnostics
Air Conditioning Electrical Diagnostics
Air Conditioning Electrical Diagnostics
Accelerator pedal sensor (APS) recalibration
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
AIR CONDITIONING ELECTRICAL DIAGNOSTICS
HIGH OR SPIKING VOLTAGE ONLY WITH LEECE-NEVILLE ALTERNATOR USING REMOTE VOLTAGE SENSE
NAVISTAR: DIESEL EXHAUST FLUID (DEF) WILL FREEZE INSIDE PURGE PUMP DUE TO AFTERTREATMENT CONTROL MODULE (ACM) NOT...
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RECEIVING BATTERY POWER (BATTERY DISCONNECT SWITCH), AND PURGE CYCLE FAILS TO COMPLETE, AFTER IGNITION KEY IS OFF. MODEL PROSTAR, WORKSTAR. *PE
NAVISTAR: VOLUNTARY EMISSION RECALL INVOLVES RECALIBRATION OF ECM SOFTWARE TO PREVENT POSSIBILITY OF DOWNTIME DUE TO...
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FREQUENCY OF AFTERTREATMENT REGENERATION LIGHTS INDICATING DIESEL PARTICULATE FILTER (DPF) OVERLOAD. MODELS 2010-2013 DURASTAR, WORKSTAR, AND AMBASSADOR, DIPLOMAT, KNIGHT RVS. *PE
HVAC & Climate
26 bulletinsTitle: A/C Refrigerant and Oil Capacities Applies To: All current models
A/C Refrigerant and Oil Capacities
Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
A/C Refrigerant and Oil Capacities
Troubleshooting & Resetting HVAC Doors; only 2010 and later vehicles with feature code 0016WCT.
HVAC faults 520211 and 520465; only Models with Body Controllers
Air Conditioning Diagnostics
Air Conditioning Control Head Diagnostics
A/C Refrigerant and Oil Capacities
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
HVAC faults 520211 and 520465
Vehicle Air Conditioning Diagnostics (Start Here)
04SPL, MCAC 476, Yoosung, Compressor - Service Information
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
Vehicle Air Conditioning Diagnostics (Start Here)
Air Conditioning Mechanical Pressures Diagnostics
VEHICLE AIR CONDITIONING DIAGNOSTICS
AIR CONDITIONG CONTROL HEAD DIAGNOSTICS
AIR CONDITIONING MECHANICAL PRESSURES DIAGNOSTICS
2010 AND NEWER VEHICLE AIR CONDITIONING DIAGNOSTICS (START HERE)
AIR CONDITIONING MECHANICAL PRESSURES DIAGNOSTICS
AIR PRESSURE GAUGES AND A/C PRESSURE TRANSDUCER TROUBLESHOOTING
NAVISTAR: REPLACING THE HEATER SUPPLY PIPE.
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*KB
Transmission
14 bulletinsTitle: Steering Gear Seal Repair Guidelines Applies To: Steering gears
Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
Power Distribution Center (PDC) Replacement; 7000 (Workstar) Model Series with Allison or Manual Transmissions
DUAL STEERING GEAR AIR BLEED PROCEDURE
Transmission Upshifting too Fast; Only with Allison Gen 4 LCT (1000 and 2000 series) Transmission
Transmission Control Module Relocation; only with Allison WT Gen 3 Transmission
Roll Pins Backing Out of Bell Crank; Only with manual transmission
Allison Transmission with Auto Neutral Feature Won?t Shift Back into Gear When the Parking Brake is Released; only with...
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Allison MD Transmission and Auto Neutral Feature 13AAZ and 13WUA
Transmission Jumping Out of Gear; manual transmission only
New Synthetic Oil for Eaton and Spicer Transmissions; only with Eaton or Spicer transmissions
Steering Noise in Vehicles Equipped with Dual Steer; Only models equipped with dual steering gear
Eaton Clutch Information
ZF Sachs Twin XTend clutch; only Vehicles with heavy-duty ZF Sachs Twin XTend Clutch
ALLISON TRANSMISSION RATTLE WITH PTO
Fuel System
14 bulletinsOrdering Parts for Selective Catalyst Reduction (SCR) Exhaust Systems; only models Equipped with SCR Aftertreatment In...
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The United States and Canada.
Dual Fuel Tank Transfer Pump Troubleshooting
Dual Fuel Tank Transfer Pump System With Two Wire Pump Troubleshooting; Only models built with Feature Code: 595192
How to Change From a 5 Wire Fuel Transfer Pump to a 2 Wire Fuel Transfer Pump
Exhaust Bellows Damage; only models equipped with bellows exhaust pipe.
SCR Fluid Filter Replacement; only models equipped with Cummins ISX or Navistar N13 Diesel Exhaust Fluid System
Ordering Parts for Selective Catalyst Reduction (SCR) Exhaust Systems; Only 2013 models and forward with SCR
2010 Dash Cluster Lamp Operation with new DPF Lamp Locations , Functions and Regeneration Instructions
2010 Dash Cluster Lamp Operation with new DPF Lamp Locations , Functions and Regeneration Instructions
DPF Snap Accel Test - Quick Test to All vehicles with DPFs
Dual Fuel Tank Transfer Pump Troubleshooting on Post-2007 NGV and ProStar
Dual Fuel Tank Transfer Pump System With Two Wire Pump Troubleshooting; equipped with feature 595192 built after...
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08/19/2002
IK1500051 - DAVCO FUEL PRO 382 TECHNICAL MANUAL, INSTALLATION, DIAGNOSTICS, AND SERVICE
IK1201320 - EGR SLOW RESPONSE DIAGNOSTICS; 2659 - 10
Brakes
13 bulletinsThis document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and...
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windshields using an ultrasonic sound detector.
Bendix EC80 Blank Module Replacement Program; This document will guide the user through selecting the correct ABS module...
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when it has been determined a replacement is needed. Only Models with EC-80 ABS Controller
WorkStar Hybrid Mount to Pad Mount A/C Compressor Retrofit
Meritor Front Brake Return Spring Install
Brake Lights Staying On
General Air Brake Plumming Schematic
2007 and Newer Brake Light Operation; only equipped with Air Brakes
The mounting bolts that fasten the air disc brake caliper to the caliper anchor plate may have not been tightened to...
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their specified torque; only with air disc brake feature codes 04WEY, 04WEZ, or 04WZK.
Brake Lights Staying On
General Air Brake Plumming Schematic
Standard to Heavy Duty Brake Chamber Replacement
Adding an Electronic Trailer Brake Controller
INTERNATIONAL (NAVISTAR): THE ADHESIVE PATCH, USED ON ONE PIECE SUNSHADE, FAILS, AND THE SUNSHADE MOUNTING BRACKET,...
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USED ON MODEL DAY CABS, COMES OFF. *PE UPDATED 5/9/12 *JS UPDATED 05/07/13 *JS UPDATED 11/14/2013 *JS
Lighting
11 bulletinsRepair Procedures for Vehicles Struck by Lightning
Repair Information for Damaged Headlight Connector
Repair Information for Damaged Headlight Connector
Repair Information for Damaged Headlight Connector
Repair Information for Damaged Headlight Connector
Trailer Auxiliary Switch Lamp Burning Out; Only Vehicles Equipped with Feature Code 0008TTH or 0008THG
Repair Information for Damaged Headlight Connector
COMBINED OR SEPARATE, TURN AND STOP LIGHTS
NAVISTAR: SOME VEHICLES ARE EXPERIENCING HEADLIGHT CONDENSATION OR FROST IN THE VEHICLES.
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*TA
CHANGING TRUCK OR TRAILER LIGHTING, BETWEEN COMBINED OR SEPARATE, STOP AND TURN LIGHTS.
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NAVISTAR. *KB UPDATED 1/27/15. *PE
NAVISTAR: MAXXFORCE 11, 13, AND 15 RECALIBRATION TO ADRESS FREQUENT WARNING LIGHTS.
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*KB
Infotainment
9 bulletinsThis tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files.
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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.
NEW Ultrasonic DEF Head Unit; All SCR vehicles
NEW Ultrasonic DEF Head Unit available; Only models equipped with SCR Aftertreatment.
NEW Ultrasonic DEF Head Unit; Only vehicles Equipped with SCR
NEW Ultrasonic DEF Head Unit; only models equipped with SCR Aftertreatment
NEW Ultrasonic DEF Head Unit
Radio Diagnostics and Information
Asterisk in Lower Right Quadrant of Dash Display
RADIO DIAGNOSTICS AND INFORMATION
Suspension
9 bulletinsThis document reminds technicians of the critical relationship between the truck's suspension and the driveline operating angles.
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The information applies to diesel, gas, and electric vehicles.
Front cab mount bushings/insulators MV, HV, DuraStar, and WorkStar vehicles used in severe vocations
Suspension Lean Diagnostics; All models
Horton Stratis Fan Hub Diagnostics
Preventative Maintenance on Horton Stratis Fan Hub Anti Rotation Bracket
Horton Stratis Fan Hub Diagnostics
Suspension Dump; only models with programming feature 595ACA (Suspension Dump).
Horton VMaster Ultra (Stratis) Viscous Fan Hub Diagnostics and Troubleshooting Guide
Cab Air Suspension Ride Height Measurement and Adjustment
Software & Calibration
9 bulletinsCluster Software Update Instructions
Using Supplier Software to Check DTCs
Dealer EZ-Tech and Diagnostic Software Support Resource Center
Rear S Cam Tube / Bracket part update
Upper radiator Hose update; equipped with feature 0012UAS
WORKSTAR UPPER RADIATOR HOSE UPDATE
NAVISTAR: VARIOUS TYPES NAVISTAR VEHICLES WILL BE RECEIVING UPDATES ON THE REAR S CAM TUBE/ BRACKET PARTS.
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*TA UPDATED 9/10/15 *CN
INTERNATIONAL: ON THE AFTERTREATMENT SUPPORT HANGER, THE HORIZONTAL AFTERTREATMENT SUPPORT ROD BOLT IS LOOSE OR...
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BACKED OUT, DUE TO POSSIBLE WEAR AND NEEDS TO BE REPLACED, IF NECESSARY. *PE UPDATED 02/07/2014 *JS
INTERNATIONAL: WHILE UNDER SEVERE DUTY APPLICATIONS, THE TRANSVERSE TORQUE ROD TOWER BRACKET COULD FAIL ON REAR AXLES.
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MODEL WORKSTAR. NO MODEL YEAR LISTED. *PE UPDATED 5/9/12 *JS
Tires & Wheels
6 bulletinsThis article describes how to fix a speedometer that does not read accurately.
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An inaccurate speedometer can be caused by changing the tire size, changing rear axle ratio (RAR), or by parameters being inadvertently changed during a programming event. Use the formulas and calculator below to correct the pulses per mile (PPM).
Suggested alignment target values when performing a vehicle axle alignment.
Suggested alignment target values when performing a vehicle axle alignment
Suggested alignment target values when performing a vehicle axle alignment
FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
Steering
6 bulletinsAdjustment Procedure for Tilt Only Steering Column; only models with Feature code 0005708
Steering Noise in Vehicles Equipped with Dual Steer
The steering wheel armature may not have been welded properly to the steering wheel hub during the manufacturing...
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process.
Steering Fluids
Steering Shake, Shimmy, Shudder, or Steering Vibration; only with 14k front weight rated axles and below
Lubrication to the Intermediate Steering Column Upper U-Joint
Pre-Delivery & Maintenance
4 bulletinsTitle: Service Portal iKNow Feedback Case Types Applies To: All
Frame Rail Straightness Inspection Procedure
Cab Odor Service Plan Information
THE ON BOARD DIAGNOSTIC (OBD) DATA STORED FOR PURPOSES OF DEFINING REQUIRED MAINTENANCE OR REPAIR MAY BE INADVERTENTLY...
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LOST WITHOUT NOTICE TO THE OPERATOR.
Air Bags & Safety
1 bulletinChange in Seat Belt Manufacturer - Inspection and Replacements