TSB150038-060623

Service Bulletin Details

Public Details for: TSB150038-060623

This technical service bulletin describes the proper troubleshooting and repair steps for egr cooler leaks. This is address egr coolers that are erroneously replaced due to signs of moisture in the egr cooler or egr crossover tube and hard


- 9999 -

Models from 9999
9999 CUMMINS ISX12
9999 CUMMINS ISXL G 
Improper Exhaust Gas Recirculation (EGR) Cooler Replacement with No Failure Found
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Technical Service Bulletin Number
TSB150038
Technical Service Bulletin
Subject
Improper Exhaust Gas Recirculation (EGR) Cooler Replacement with No Failure Found
Issue
Exhaust Gas Recirculation (EGR) coolers returned to the factory, stated to be failed because
of internal coolant leaks, were tested and found to be within specification.
The EGR coolers tested by the factory were found to have acceptable measured pressure loss
and no continuous formation of bubbles near the gas tubes or bulkhead while performing the
EGR cooler pressure test.
The EGR coolers, incorrectly stated to be failed because of internal coolant leaks, were
replaced for the following reason(s):



Signs of moisture in the EGR cooler
Signs of moisture in the EGR crossover tube
Hard to diagnose low coolant level fault codes
Verification
Product Affected:


ISX12 G CM2180 EJ
ISL G CM2180
The EGR cooler pressure test must be performed to determine if the EGR cooler is leaking
coolant. Moisture in the EGR crossover tube or EGR cooler may be water condensation and is
not adequate evidence that the EGR cooler is leaking. Reference the corresponding EGR
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150038.html
7/1/2016
Improper Exhaust Gas Recirculation (EGR) Cooler Replacement with No Failure Found
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cooler procedure:


See ISX12 G CM2180 EJ Service Manual, Bulletin 4310682. Refer to Procedure 011-019
in Section 11
See ISL G CM2180 Service Manual, Bulletin 4021649. Refer to Procedure 011-019 in
Section 11.
Resolution
The EGR cooler should only be replaced for the following reason(s):


EGR cooler does not pass the EGR cooler pressure test
EGR cooler does not meet the reuse guidelines defined in the clean and inspect for
reuse section of Procedure 011-019 in section 11 of the corresponding Service Manual
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.
Document History
Date
2015-3-18
2015-3-20
2016-6-22
2016-6-23
Details
Module Created
none
Added ISL G CM2180 to Product Affected.
Added procedure reference for ISL G CM2180.
Last Modified: 24-Jun-2016
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150038.html
7/1/2016

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