SERVICE PROCEDURE
20504
JULY, 2020
SUBJECT:

SAFETY RECALL
International® A26 Engine in certain 2018 thru 2020
International® LT® Series trucks and certain 2019
and 2020 RH™ Series trucks built 10 February 2018
thru 10 June 2019.

DEFECT DESCRIPTION
The connecting rod bushing over time may develop cracks or lose chunks of
material which could lead to connecting rod engine failure. Connecting rod failure
in some cases can result in engine shutdown with minimal warning. A stalled
vehicle in or near the roadway can increase the risk of a vehicle crash.

MODELS INVOLVED
This safety recall involves certain 2018 thru 2020 International® LT® Series
trucks and certain 2019 and 2020 RH™ Series trucks built 10 February 2018 thru
10 June 2019 with International® A26 engines.

ELIGIBILITY
This procedure applies ONLY to vehicles marked in the International® Service
Portal℠ with Safety Recall 20504. Also complete any other open campaigns
listed on the Service Portal at this time.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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TOOLS REQUIRED
NOTE: This repair involves programming the ECM. This new engine
calibration will provide an electronic detection system that will alert the
driver if the engine is starting to have a connecting rod failure. The driver
will be alerted by the illumination of the RED Stop Lamp in the cluster and
a fault code will be displayed. When alerted, the driver should pull over to a
safe location and take the appropriate safety measures.
The three potential codes are:
•

0 – SPN7320 – 0 Engine Multiple Cylinder Knock Level: Data Valid
But Above Normal Operational Range – Most Severe Level

•

0 – SPN7320 – 15 Engine Multiple Cylinder Knock Level: Data Valid
But Above Normal Operating Range – Least Severe Level

•

0 – SPN7320 – 16 Engine Multiple Cylinder Knock Level: Data Valid
But Above Normal Operating Range – Moderately Severe Level

Description
EZ-Tech® or equivalent
NavKal™
Battery Charger 55 amp

Tool Number
N/A
N/A
PSC550CC

PARTS INFORMATION
There are no parts for this recall.
SERVICE PROCEDURE
GOVERNMENT REGULATION: Engine fluid (oil, fuel, and coolant) may be a
hazard to human health and the environment. Handle all fluid and other
contaminated materials (such as filters and rags) in accordance with
applicable regulations. Recycle or dispose of engine fluids, filters, and
other contaminated materials according to applicable regulations.
WARNING! To prevent personal injury and / or death, or damage to
property, park vehicle on hard flat surface, turn the engine off, set the
parking brake and install wheel chocks to prevent the vehicle from moving
in either direction.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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WARNING! To prevent personal injury and / or death, or damage to
property, if the vehicle must be raised, do not work under the vehicle
supported only by jacks. Jacks can slip or fall over.
WARNING! To prevent personal injury and / or death, always wear safe eye
protection when performing vehicle maintenance.
WARNING! To prevent personal injury and / or death, or damage to
property, allow engine / vehicle components to cool before servicing.
WARNING! To prevent personal injury and / or death, or damage to
property, keep flames or sparks away from vehicle and do not smoke while
servicing the vehicle’s batteries. Batteries expel explosive gases.
1. Park vehicle on flat surface.
2. Shift transmission to Park or Neutral and set parking brake.
3. Turn ignition to Key OFF position.
4. Install wheel chocks.
5. Connect battery charger / maintainer to vehicle battery.
6. Connect to ECM with NavKal™ and program ECM.
NOTE: All programming and troubleshooting information can be accessed
from the articles listed in the chart below, Dealer EZ-Tech®, or clicking the
link below to access the Diagnostic Software Support Resource Center.
Dealer EZ-Tech and Diagnostic Software Support Resource Center
NOTE: These articles contain general information about each
reprogramming method and software, with links to specific instructions.
Programming Method
NavKal™

Programming and troubleshooting
Instructions
TL2600002

7. If assistance is needed, contact Vehicle Programming by creating an
iKNow case file or calling 1-800-336-4500, options 3,1,1.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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NOTE: Clear all inactive / previously active faults after programming. Only
perform diagnostics or procedures on ACTIVE faults. You must open a
new claim section on your work order.
8. If any inactive / previously active faults are found after programming,
clear them from ECM. Only perform diagnostics or procedures on active
faults.
9. Disconnect battery charger / maintainer from vehicle battery.
10. Remove wheel chocks.

END OF SERVICE PROCEDURE

LABOR INFORMATION
Operation Number
A40-20504-1

Description
Recalibrate ECM

Time
0.5 hr

CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with this
campaign must be marked with a CTS-1075
Campaign Identification Label.
Complete the label and attach on a clean surface
next to the vehicle identification number (VIN) plate.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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ADMINISTRATIVE / DEALER RESPONSIBILITIES
WARRANTY CLAIMS
NOTE: Engines that have a connecting rod failure will need to be repaired
using the proper approval process and will not be charged to this recall.
Warranty claim expense is to be charged to Warranty. Claims are to be
submitted in the normal manner, making reference to Safety Recall 20504.
Section 7 of the Warranty Policy and Procedures Manual contains further
information related to the submission and processing of AFC / Recall claims.
As with all claim submissions, items acquired locally must be submitted in the
“Other Charges” tab. The cost of any bulk items (such as a bag of cable tie
straps, roll of wire, barrel of oil, or tube of silicone) should be prorated for the
cost of the individual pieces / amount used during each repair.

UNITED STATES AND POSSESSIONS
The National Traffic and Motor Vehicle Safety Act, as amended, provides that
each vehicle that is subject to a vehicle recall campaign must be adequately
repaired within a reasonable time after the owner has tendered it for repair. A
failure to adequately repair within 60 days after a tender of a vehicle is prima
facie evidence of failure to repair within a reasonable time. If the condition is not
adequately repaired within 60 days, the owner may be entitled to replacement
with an identical or reasonable equivalent vehicle at no charge, or to a refund of
the purchase price less a reasonable allowance for depreciation.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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Dealers must correct all vehicles subject to this campaign at no charge to the
owner, regardless of mileage, age of vehicle, or ownership, from this time
forward.
Dealers should proceed immediately to make necessary correction to units in
inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your dealer location.
Dealers must make every effort to promptly schedule an appointment with each
owner to repair his or her vehicle as soon as possible. However, consistent with
the customer notification, dealers are expected to complete the repairs on the
mutually agreed upon service date.
Dealers involved in the recall process will be furnished a listing of owner names
and addresses to enable them to follow up with owners and have the vehicles
corrected. Use of this listing must be limited to this campaign because the list
may contain information obtained from state motor vehicle registration records,
and the use of such motor vehicle registration data for purposes other than this
campaign is a violation of law in several states.
CANADA
Dealers must correct all vehicles subject to this campaign at no charge to the
owner, regardless of mileage, age of vehicle, or ownership, from this time
forward.
Dealers should proceed immediately to make necessary correction to units in
inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your dealer location.
Dealers must make every effort to promptly schedule an appointment with each
owner to repair his or her vehicle as soon as possible. However, consistent with
the customer notification, dealers are expected to complete the repairs on the
mutually agreed upon service date.
Dealers involved in the recall process will be furnished a listing of owner names
and addresses to enable them to follow up with owners and have the vehicles
corrected. Use of this listing must be limited to this campaign because the list
may contain information obtained from state motor vehicle registration records,
and the use of such motor vehicle registration data for purposes other than this
campaign is a violation of law in several states.
VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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EXPORT
Export Distributors should proceed immediately to make necessary correction to
units in inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your distributor location.
Export Distributors are to submit warranty claims in the usual manner making
reference to this recall number.
Export Distributors are expected to provide full cooperation and follow-up with
respect to this important subject matter. If you have any questions or need
further assistance, please contact the Regional Service Manager at your regional
office.

NAVISTAR, INC.

VEHICLE RECALL 20504
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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