Vehicle report
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.
IK2600052
This article describes how to fix a speedometer that does not read accurately. 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).
IK1900198
This article only applies to Models w/ 0016UZL Built Between 06/23/2014 – 05/11/2020 OR Models w/ 0016UZL w/ Safety 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).
IK2600090
New CARB Idle Reduction Change Request
IK4300035
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.
IK2600255
This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. 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.
IK2600047
Engine replacements for all International engines will need to follow this procedure.
IK1600272
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
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
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
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
Title: Service Portal iKNow Feedback Case Types Applies To: All
IK1400005
Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
IK1900022
Title: A/C Refrigerant and Oil Capacities Applies To: All current models
IK0900157
Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
IK1200716
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
Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
IK2600069
Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
IK0300078
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
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.
IK0400037
This document is to guide users to eliminate brake pedal rattle noise.
IK08000403
This document details the procedure that must be followed to ensure proper alternator troubleshooting.
IK0200013
Suggested alignment target values when performing a vehicle axle alignment.
IK0800407
Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or PSI engine.
IK0800503
Cummins ISB Starting system diagnostics.
IK0800351
J1939 Data Link Source Address Information
IK0300010
Diagnosis of chassis wander complaints.
IK0400040
General Wheel Speed Sensor Troubleshooting
IK1201457
Cummins B6.7 Grid Heater Relay
IKo800080
J1939 Data Link Troubleshooting
IK1200101
Cummins Programming guide and fault codes285 & 265; only vehicles built with Cummins B6.7, X15, or L9 engines
IK1201472
Pico Scope CCOS (Crankcase Separator Test)
IK0800605
PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
IK0800607
PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
IK0800609
PicoScope Test for Datalink (CAN) Health Shorts & opens
IK0800610
PicoScope Test Resistance and Ohmmeter
IK1201469
PicoScope Test One Channel RCT
IK1600145
Front cab mount bushings/insulators MV, HV, DuraStar, and WorkStar vehicles used in severe vocations
IK1600131
Cab water leak troubleshooting tips; HX with steel cab only
IK0400046
WABCO Full Power Brake Diagnostic Code (DTC) Index
IK0800074
Dual Drive Cab Throttle Position Harness for APS/IVS throttle pedals; only models with both left hand and right hand drive.
IK0800080
J1939 Data Link Troubleshooting
IK1000003
Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
IK1300086
Bendix Stability control - customer satisfaction performance improvement; Specific Emergency / Tanker applications only.
IK2600251
How to obtain As built parameter list
IK0400028
How to program parameters after changing WABCO FPB ECU (Parking brake shows N/A)
IK2600254
New or replacement body control Module (BC,BCM) not detected; Gen 4 BCM
IK1201299
Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
IK0700112
Aftertreatment Clamp Corrosion; Single Can Aftertreatment Systems
IK1900259
Day cab roof air deflector causing loud vibration noise at highway speed
IK0100051
Frame Rail Straightness Inspection Procedure
20510
On certain trucks equipped with an automatic transmission, if the automatic transmission is still in drive or reverse 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.
IK1500074
Fuel Filters, Winter Additives, and Blending Fuels for Cummins® Engines
IK1600233
Cab Lean Concern
IK0800504
Repair Procedures for Vehicles Struck by Lightning
IK0800284
Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK0800475
Radio Diagnostics and Information
IK1201442
5 gallon SSI DEF level sensor/ multifunction head unit retrofit; only 2014 and 2015 models year built with Navistar N9/N10 engines
IK1600258
Cleaning and Disinfecting Trucks and Buses
IK0400159
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
IK1201398
ISB 6.7 Frequent Regeneration
IK1600207
Wind noise at upper side of cab door due to door out of alignment
IK0700097
NEW Ultrasonic DEF Head Unit; All SCR vehicles
IK0400019
Air Powered (SAAR) Park Brake Troubleshooting (Service "P" Light Coming on). Only models with hydraulic brakes
IK0700079
SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK0800484
Voltage gauge drops on cold engine start-up; Only models built with Cummins ISB, B6.7, ISL, or L9 engines
K1200716
Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
IK0800059
Brake Lights Staying On
IK0800017
Programing New Key Fobs
IK0800114
Vehicle Speed ( VSS ) Output for Bodybuilders
IK0800130
Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
IK0400077
FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
IK0800522
Repair Information for Damaged Headlight Connector
4328530R1
Tool Instruction - BCM Programming Harness
Rec17V-792_2017-
The fire extinguishers may become clogged or require excessive force to activate. In certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. Only equipped with Kidde model FC5 and FC10 fire extinguishers identified by International part numbers 1696423C2 and 1696423C3 and installed post production at Navistar?s Truck Sales Processing Center (TSPC).
IK4300001
Updating OnCommand Link with Accelerator
IK1201362
ISB CAC Port Plug; onle vehicles with Cummins ISB engine
IK1200921
ISX, N13, and N9 / N10 Aftertreatment Private Data Link Troubleshooting
IK2700100
OnCommand EZ-Tech
IK2500511
Using Supplier Software to Check DTCs
IK0800517
Cummins Engine Remote Engine Speed Control; only with feature code12XAT or 12XBM
IK0800341
Trailer Auxiliary Switch Lamp Burning Out; Only Vehicles Equipped with Feature Code 0008TTH or 0008THG
IK0400154
Hydraulic Brake System Park Brake Inspection and Adjustment Procedures; only models with Hydraulic Brake system equipped with 04GBJ Park Brake
IK0700096
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
HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
IK2900030
Dealer EZ-Tech and Diagnostic Software Support Resource Center
IK1201363
CPA Injector Misfire Detection; Only models with 2004 thru 2017 International engines.
IK1201360
Cylinder Performance Analyzer (CPA) Resource Center; Only models with 2004 thru 2017 International engines.
IK2700090
OnCommand EZ-Tech Download Center
IK1201359
Breather Filter and Crankcase Tube Freezing Issue in Below Freezing Temperatures; only models with Cummins ISB 6.7 and QSB 6.7
IK0500038
Steering Shake, Shimmy, Shudder, or Steering Vibration; only with 14k front weight rated axles and below
IK0500058
Steering Fluids
IK0400147
Wabco Hydraulic Power Brake cap/grounds diagnostics and repair procedure
IK1201248
Cooling System Flush Procedure
IK0800374
To Get A Helios Capture; All 1939 and 1708 multiplexed trucks only
IK1600222
POWER WINDOW BINDING
MIN16121
THE UPPER AND LOWER SHIFT LEVER COULD CONTACT INTERIOR COMPONENTS (SEAT, DASH, FLOOR PAN) WHILE SHIFTING.
IK1200029
RADIATOR INTERNAL RESTRICTION AND FLUSH PROCEDURE
IK0400056
BRAKE LIGHT OPERATION; ONLY EQUIPPED WITH FULL POWER BRAKE SYSTEM
IK1900223
Air Conditioning Electrical Diagnostics
IK1900228
2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
IK0800441
Adding an Electronic Trailer Brake Controller
IK-1201314
PERFORMING RELATIVE COMPRESSION TEST AND MISFIRE TEST WITH CPA TOOL
IK-0500057
ALL HEAVY PLATFORM POWER STEERING FLUID PRODUCTION CHANGE
IK-1500051
IK1500051 - DAVCO FUEL PRO 382 TECHNICAL MANUAL, INSTALLATION, DIAGNOSTICS, AND SERVICE
IK-1201326
IK1201326 - SERVICE PARTS DAMAGED NEW TURBOCHARGER OIL SUPPLY TUBE
IK-0500056
NEW STEERING SHAFT HEX BOLT
IK1201315
Cummins ISB- ABS Light After ECM Reflash 639-2 (185)
IK0800414
Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
IK0800520
Ground Splice 6747 Causing Multiple Fault Codes
121602
Change in Seat Belt Manufacturer - Inspection and Replacements
IK1600023
Mirror Repair Procedures and Replacement Parts Availability
IK1600218
Seat occupant sensor; Emergency applications only
IK1900158
Dash Cluster Lamp Operation, Functions and Regeneration Instructions, With International engines
IK0900114
On certain DuraStar and CE Bus models with Cummins ISB engines, the upper radiator hose saddle clamps are positioned improperly,and may cause punctures in the upper radiator hose. New saddle clamps, with a revised design and positioning, must be installed to correct the issue, as outlined in the following document.
IK1900212
Front Blower Motor Runs Breifly At Initial Power Up
REC15509
A jump start or electrical load dump event could result in an overvoltage condition of the cab Linear Power Module (LPM). The overvoltage condition could eventually cause overheating of the LPM circuit board.
IK1300141
Vehicles with Thandle Shifters; 6th Gear Disable Information and Diagnostics
IK0400125
Rear S Cam Tube / Bracket part update
IK0800296
HVAC faults 520211 and 520465
IK0700032
DPF Snap Accel Test - Quick Test to All vehicles with DPFs
REC15504
A diaphragm in the spring brake chamber may not be seated fully into the pressure plate and may cause internal leakage in the chamber, resulting in the parking brake to not fully release and drag.
IK1900225
Air Conditioning Mechanical Pressures Diagnostics
IK0300061
8,000 LBS Front Suspension Lean Correction
IK1500005
Dual Fuel Tank Transfer Pump System With Two Wire Pump Troubleshooting; equipped with feature 595192 built after 08/19/2002
IK1500035
Dual Fuel Tank Transfer Pump Troubleshooting on Post-2007 NGV and ProStar
IK0800092
The First Check to make when Troubleshooting any Body Controller or ESC Issue
REC15502
Recalibration of the Electronic Control Module (ECM). This will prevent the possibility of damage to an emissions system control sensor and improve exhaust aftertreatment regeneration performance.
REC15503
Emergency vehicle calibration will reduce the engine exhaust soot levels that enter the aftertreatment system and 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.
15503
TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. A POTENTIAL ENGINE DERATE OR SHUTDOWN HAS BEEN DETERMINED IN CERTAIN DURASTAR AND WORKSTAR MODELS *CN
IK1300085
Wabco FPB/Quadraulic Brake Uneven Wear
IK0400143
Chassis with Quadraulic Brakes; Quadraulic Brake Pads
IK0800485
Cluster Software Update Instructions
AFC 14905
Lower radiator hose may chafe on the frame rail
AFC14903
IMPROVE GROUND CLEARANCE WITH ISB ENGINE, SWITCHBACK ATD EXHAUST, AND 19.5 INCH TIRES
REC14512
EMISSIONS RECALL; ECM SOFTWARE UPDATE; THE RECALIBRATION WILL REDUCE INCORRECT FAULT CODES AND PREVENT DIESEL PARTICULATE FILTER
IK0800463
HIGH OR SPIKING VOLTAGE ONLY WITH LEECE-NEVILLE ALTERNATOR USING REMOTE VOLTAGE SENSE
IK0800336
Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
AFC14902
A new calibration has been made available for emergency vehicles that prevents the possibility of engine derate or eventual shutdown due to the potential need for aftertreatment regeneration during emergency service.
REC14508
The mounting bolts that fasten the air disc brake caliper to the caliper anchor plate may have not been tightened to their specified torque; only with air disc brake feature codes 04WEY, 04WEZ, or 04WZK.
IK1300055
Transmission Upshifting too Fast; Only with Allison Gen 4 LCT (1000 and 2000 series) Transmission
IK1300038
Transmission Control Module Relocation; only with Allison WT Gen 3 Transmission
MIN14108
Diesel Exhaust Fluid (DEF) Hose Bracket Installation
REC14503
ECM Recalibration; This will reduce false positive fault codes and frequent aftertreatment regeneration lights
REC14502
The mounting bolts that fasten the steering gear to the vehicle frame may not be the correct bolt specified. These bolts could yield, resulting in either looseness of steering or the potential for loss of steering if all four mounting bolts were to yield.
IK0800411
Body Controller Resource Center
IK0800412
Headlight Operation and Troubleshooting; only Post 2007 Vehicles Built with a Body Controller
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.