TSB210117

6/28/2021
Updates to Coolant Drain and Fill, Service Manual Procedure 008-018 Cooling System, to Prevent Engine Damage
Technical Service Bulletin
Technical Service Bulletin: TSB210117
Released Date: 09-Jun-2021
Updates to Coolant Drain and Fill, Service Manual Procedure 008-018 Cooling System, to Prevent Engine Damage
Updates to Coolant Drain and Fill, Service Manual Procedure 008-018
Cooling System, to Prevent Engine Damage
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or
Campaign actions.
Contents
Product Affected
L9 CM2350 L116B
L9 CM2350 L119B
L9 CM2350 L123B
L9 CM2450 L126B
Description of Change
Updates have been made to Service Manual Procedure 008-018 in Section 8 for evacuating coolant from an engine and
injecting coolant into an engine using the coolant replacer kit.
The coolant replacer kit must be cleaned according the manufacturer’s instructions prior to use, and the Vacuum step in the
Service Manual procedure must be followed after the Injection step.
Reason for Change
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6/28/2021
Updates to Coolant Drain and Fill, Service Manual Procedure 008-018 Cooling System, to Prevent Engine Damage
Multiple instances of cooling system contamination and coolant mixing have been observed in the field, resulting in damage to the
cooling system components. These issues have been linked to the use of coolant replacer kits which have not been properly
cleaned between uses and still contain coolants and contaminants from other engines.
Service Instructions
Reference the updated Cooling System Service Manual Procedure 008-018 in Section 8. See Table 1 below.
Publications Affected
Table 1, Publications Affected
Manual Type
Service Manual
Service Manual
Service Manual
Service Manual
Engine
L9 CM2350 L116B
L9 CM2350 L119B
L9 CM2350 L123B
L9 CM2450 L126B
Bulletin Number
5411330
5411267
5411465
5613077
Procedure Title
Procedure
Section
Cooling System
Refer to Procedure
008-018
(/qs3/pubsys2/xml/
en/procedures/459
/459-008-018.html)
8
Cooling System
Refer to Procedure
008-018
(/qs3/pubsys2/xml/
en/procedures/425
/425-008-018.html)
8
Cooling System
Refer to Procedure
008-018
(/qs3/pubsys2/xml/
en/procedures/459
/459-008-018.html)
8
Cooling System
Refer to Procedure
008-018
(/qs3/pubsys2/xml/
en/procedures/583
/583-008-018.html)
8
Document History
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6/28/2021
Updates to Coolant Drain and Fill, Service Manual Procedure 008-018 Cooling System, to Prevent Engine Damage
Date
2021-6-7
Details
Module Created
Last Modified: 09-Jun-2021
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