2021 International CV TSBs
50 Technical Service Bulletins across 11 categories
Categories
Engine
17 bulletinsThis document will guide the user through the changes of the dielectric grease/coatings used in certain areas on all...
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International vehicles built after 1/8/2018. International's Electrical Engineering Team made this change to improve the longevity of the OEM coatings and to improve applications at the factory.
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.
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.
This document will guide the user through providing the necessary documentation to tech support for a 6.6 engine...
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replacement.
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
EMISSIONS RECALL On Board Diagnostic MIL faults in certain International CV Series trucks built 1/11/2018 thru 3/15/2024...
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with model year 2019 thru 2023 International 6.6L engines
On Board Diagnostic MIL faults in certain International CV Series trucks built 1/11/2018 thru 3/15/2024 with model...
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year 2019 thru 2023 International 6.6L engines
Starter Diagnostics and warranty claim procedure; all engines EXCLUDING Cummins ISB engine with Allison transmission or...
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PSI engine.
CV Engine ECM losing Programmed Values
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
In extreme cold ambient conditions, the Diesel Exhaust Fluid (DEF) tank may become frozen and result in engine derate until the DEF tank is thawed.
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Emissions may increase when dosing is suspended while the DEF is frozen.
The engine mounted heater return tube may crack resulting in a small coolant leak.
Other
16 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
Title: International CV Parameter Reconfiguration Programming Process
J1939 Data Link Source Address Information
Diagnosis of chassis wander complaints.
J1939 Data Link Source Address Information
J1939 Data Link Troubleshooting
Telematics installation guidelines - Only units with 500K data link
CV Series Trucks Operating with PTO and PTO Stops Working while PTO is Engaged
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
CV Cold weather operation - P208A, P105A DTCs with frozen DEF tank
Electrical
5 bulletinsGeneral Wheel Speed Sensor Troubleshooting
CV ECM / PTOM Software Update
CV ECM / PTOM Software Update
PicoScope Test - Battery Loss of Charge - Parasitic Draw Test
PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
Infotainment
2 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.
CV Manual Regen Message Displayed on Driver's Information Center for Emergency Vehicles
Transmission
2 bulletinsTitle: Steering Gear Seal Repair Guidelines Applies To: Steering gears
CV 4X4 undesirable turning radius.
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only 4X4models with feature codes 05PSS (Bosch S2 8014 Plus steering gear) and 01ANB (Axle configuration) built before 03/21/2022.
Suspension
2 bulletinsTitle: Non-IROS and CV Rear Air Suspension Ride Height Specifications and Adjustment Procedures Applies To: All...
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Vehicles, CV, CV iros, CV ride height,
This 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.
Body & Paint
2 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 trouble shooting tips
Brakes
1 bulletinThis 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.
Pre-Delivery & Maintenance
1 bulletinTitle: Service Portal iKNow Feedback Case Types Applies To: All
HVAC & Climate
1 bulletinTitle: A/C Refrigerant and Oil Capacities Applies To: All current models
Tires & Wheels
1 bulletinSuggested alignment target values when performing a vehicle axle alignment.