2016 International Workstar TSBs
222 Technical Service Bulletins across 15 categories
Categories
Engine
61 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 only applies to Models w/ 0016UZL Built Between 06/23/2014 05/11/2020 OR Models w/ 0016UZL w/ Safety...
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Recall 14516 Completed Reference the appropriate Technician Manual for models outside of this population. Safety Recall 14516 has been issued for units built before June 23, 2014. For LT and 2018+ LoneStar: If there is a complaint of the bunk blower turning off after an auto start event, the BCM needs to be updated to Data Version 323 or higher. The bunk blower turning off was only present in BCM Data Version 309 to Data Version 322 To properly diagnose the system, you must ensure the recall has been performed. Only the "Cold Loop" sealed refrigerant core PN # 2614669C1 is to be replaced when the refrigerant circuit fails. DO NOT REPLACE THE COMPLETE UNIT IF THE A/C IS NOT FUNCTIONING. Complete unit is not Warrantable Refer to the BASIC TROUBLESHOOTING below before replacing any components. This will help you identify which component is at fault or any electrical issues. Refer to PARTS INFORMATION to properly identify the parts that may require replacement The A/C portion of the system is listed below in the parts section. The 16UZL No-Idle HVAC system is designed to disengage when the engine is started, and can be turned on with the key in any position. This battery-powered no-idle HVAC system provides heating and cooling of the sleeper area without use of the vehicle engine. The system is comprised of the no-idle HVAC components located in the sleeper HVAC module, a separate fuel-operated coolant heater mounted under the sleeper, and four additional batteries housed in a second battery box. The no-idle HVAC system shares the air handling assembly and several major components with the truck's standard HVAC system. Most importantly, the shared evaporator core contains refrigerant circuits for both the no idle system and the truck's standard A/C system. With this configuration, some procedures required to service the no idle A/C system will require opening the refrigerant circuit of the truck's standard A/C system. Trucks equipped with the 16UZL No-Idle HVAC system have two separate HVAC systems (Standard Truck A/C and the MaxxPower unit); it is important to identify each clearly, so you are troubleshooting the correct system. Per the Operator's Manual page 10: Run the heater at least once a month during the year (for a minimum of 15 minutes).
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
Certain International N13 engines may be noncompliant to the required On Board Diagnostics (OBD) Monitor, Manufacturers...
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Self-Test (MST) for over-boost, Exhaust Gas Recirculation (EGR) low flow, and EGR high flow monitors. Under certain conditions, this noncompliance may result in the failure to detect an increase in regulated air pollutants.
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
Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 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
QLS Emergency ECM Calibration; only models equipped with Cummins B6.7, X15, L9, or International A26 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
QLS Emergency Calibration; Models equipped with 2016 and newer Cummins B6.7, X15 and L9 engines or International A26...
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engine.
QLS Emergency Calibration; Models with 2016 Cummins ISX, A26 and EPA 2017 and newer Cummins X15, L9, or B6.7 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
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
On certain trucks equipped with an automatic transmission, if the automatic transmission is still in drive or reverse...
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position and the stationary PTO switch is engaged, the engine RPM will ramp up and may overcome parking brake hold capability resulting in possible vehicle movement.
Fuel Filters, Winter Additives, and Blending Fuels for Cummins Engines
WorkStar Hybrid Mount to Pad Mount A/C Compressor Retrofit; only models with Cummins ISB 6.7 engine
Oil Capacities; All Electronic International Engines 1994 - Present.
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Cummins ISB, ISM & ISX
Voltage gauge drops on cold engine start-up; Only models built with Cummins ISB, B6.7, ISL, or L9 engines
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification and proper diagnosis.
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In addition, Diesel Exhaust Fluid (DEF) quality sensor monitors will be corrected to proper operating function.
ISB Starting System Diagnostics; Only models built with cummins ISB engines
Incorrect Lubricating Oil Dipstick; Only models with Cummins SL9 engine, High Hood, and Non-AWD
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
Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification...
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and proper diagnosis.
The recalibration will remove engine aftertreatment system faults during reset while ensuring required driver warning...
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remains.
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
The retaining nut securing the turbocharger oil supply line may not be tightened to its specified torque.
HVAC line rub; only models equipped with Cummins ISB series engines and stationary grille feature code 009HBM
Transmission Cooler Line Routing; Only models built Prior to November 29, 2017 with Cummins ISL engine
Engine software On Board Diagnostic (OBD) issues will be corrected which will aid in engine malfunction identification...
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and proper diagnosis; only with 2016 compliant N13 engines and 500K baud communications network.
Engine Oil Capacities
Cummins Engine Remote Engine Speed Control; only with feature code12XAT or 12XBM
Vehicles equipped with an air intake snow valve may have incorrect programming in the body controller.
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This condition may cause the snow valve to remain open and draw outside air.
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.
The radiator inlet hose may separate from the radiator inlet resulting in coolant loss and illuminating amber or red...
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engine diagnostic lamps.
Flexplate bolts on certain models with N13 engines and Allison transmissions
vehicles equipped with 2015 N13 engines (0510AAA) and Eaton Fuller Ultrashift Transmissions, built between 20 January...
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2015 and 31 March 2015, may have a transmission controller programmed for speed controlled shifting where feature code and application code specifies torque control shifting programming.
IK2600225 - 500K BAUD ENGINE MODULE PROGRAMMING
IK1201326 - SERVICE PARTS DAMAGED NEW TURBOCHARGER OIL SUPPLY TUBE
PERFORMING RELATIVE COMPRESSION TEST AND MISFIRE TEST WITH CPA TOOL
IK1201253 - EXHAUST MANIFOLD SERVICE PROCEDURES
MISFIRE DIAGNOSTICS IBB; SPN132(X) - FMI 31
Other
48 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
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
J1939 Data Link Source Address Information
SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
J1939 Data Link Troubleshooting; All Models with 250k Baud Data Link (Black 9-Pin Diagnostic Connector).
Only models built with Cummins X15; Fault Code 7125
Child Checkmate is not functioning correctly; Only buses with features 47EXC, 47EXD, 47EXE built from 4/18/16 to 5/15/17
Driveline Information Center and Troubleshooting Procedures
Child Checkmate is not functioning correctly; Only buses with features 47EXC, 47EXD, 47EXE built from 4/18/16 to 5/15/17
Programing New Key Fobs
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
2630-16 CACOT Under Cooling Faults; only on N13 WorkStar Plow Truck Application
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
Telematic Installation Guidelines; only Units with 500K Data Link
OnCommand EZTech
OnCommand EZ-Tech Download Center
2630-16 CACOT Under Cooling Faults on N13 WorkStar Plow Truck Application
Power Distribution Center (PDC) Replacement
RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE
COOLANT LOSS AND ILLUMINATING AMBER RESULTING FROM RADIATOR INLET HOSE POSSIBLY SEPARATING FROM THE RADIATOR INLET ...
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*CN
Electrical
24 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.
New or replacement body control Module (BC,BCM) not detected; Gen 4 BCM
General wheel speed sensor troubleshooting
Cummins B6.7 Grid Heater Relay
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
Tool Instruction - BCM Programming Harness
Certain models may have been built without the necessary ground circuit for the emergency pump relay resulting in the...
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pump to run at all times when the ignition is in the run position.
HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
Urea Quality Sensor (UQS) Boot Order
Urea Quality Sensor (UQS) Boot Order
Certain DEF Sensor / Pickup Assembly / DEF Tank Replacement
Certain 500K Baud compliant Body Control Module replacement
Air Conditioning Electrical Diagnostics
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
HIGH OR SPIKING VOLTAGE ONLY WITH LEECE-NEVILLE ALTERNATOR USING REMOTE VOLTAGE SENSE
Body & Paint
22 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
Day Cab Roof Air Deflector Vibrates against Cab Roof; only models with P/N 4067947C92 Roof Air Deflector
Wind noise at upper side of cab door due to door out of alignment
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
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
Fan Shroud ring seal may be damaged by the fan during vehicle articulation
Power Window Binding
Wind noise at upper side door
Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
MIRROR REPAIR PROCEDURES AND REPLACEMENT PARTS AVAILABILITY
THE BODY CONTROLLER MAY NOT BE PROGRAMMED WITH THE NECESSARY PROGRAMMING FOR THE SNOW PLOW DAY TIME RUNNING LIGHTS...
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(DRLS) TO OPERATE WHEN SWITCHING FROM THE HOOD LIGHTS TO THE SNOW PLOW LIGHTS.
BODY CONTROLLER UPDATES; ONLY WHEN EQUIPPED WITH 500K BAUD COMMUNICATION NETWORK
POWER WINDOW BINDING
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.
Radio Diagnostics and Information
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
RADIO DIAGNOSTICS AND INFORMATION
Brakes
8 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
Brake Lights Staying On
Brake Lights Staying On
A diaphragm in the spring brake chamber may not be seated fully into the pressure plate and may cause internal leakage...
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in the chamber, resulting in the parking brake to not fully release and drag.
Standard to Heavy Duty Brake Chamber Replacement
Adding an Electronic Trailer Brake Controller
HVAC & Climate
8 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
A/C Refrigerant and Oil Capacities
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
2010 AND NEWER VEHICLE AIR CONDITIONING DIAGNOSTICS (START HERE)
Lighting
8 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
NAVISTAR: SOME VEHICLES ARE EXPERIENCING HEADLIGHT CONDENSATION OR FROST IN THE VEHICLES.
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*TA
Tires & Wheels
7 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
Bendix SmartWave SmarTire Pressure Maintenance System TPMS
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
Transmission
7 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
Steering Noise in Vehicles Equipped with Dual Steer; Only models equipped with dual steering gear
Steering
7 bulletinsSteering Noise in Vehicles Equipped with Dual Steer
Steering Fluids
Steering Shake, Shimmy, Shudder, or Steering Vibration; only with 14k front weight rated axles and below
The castellated nut and cotter pin that fastens the tie rod end to the steering knuckle may have not been tightened to...
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their specified assembly torque and over time may loosen resulting in looseness in steering; Commercial Vehicles only.
All Heavy Platform Power Steering Fluid Production Change
ALL HEAVY PLATFORM POWER STEERING FLUID PRODUCTION CHANGE
NEW STEERING SHAFT HEX BOLT
Software & Calibration
5 bulletinsCluster Software Update Instructions
Controller Updates for 500k Baud; only vehicles with 500k baud data link
Using Supplier Software to Check DTCs
Dealer EZ-Tech and Diagnostic Software Support Resource Center
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
Suspension
3 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
Fuel System
3 bulletinsCertain vehicles with Exempt Emissions Label.
IK1500051 - DAVCO FUEL PRO 382 TECHNICAL MANUAL, INSTALLATION, DIAGNOSTICS, AND SERVICE
IK1201320 - EGR SLOW RESPONSE DIAGNOSTICS; 2659 - 10
Pre-Delivery & Maintenance
2 bulletinsTitle: Service Portal iKNow Feedback Case Types Applies To: All
Frame Rail Straightness Inspection Procedure