TSB170002 - Injector Sleeve Seal Leakage Causing Fuel and Coolant Cross-Contamination

NHTSA ID Number: 10162095

Manufacturer Communication Number: TSB170002-050720

Summary

This Technical Service Bulletin describes the verification and resolution of injector sleeve seal leakage causing fuel and coolant cross-contamination. Shrinkage of injector sleeve seal material can create a leak path between cylinder head cooling jacket and injector bore. This is an update to a previously submitted communication.

 

2 Affected Products

Equipments

BRAND PART NO. PRODUCTION DATES
CUMMINS ISX15
CUMMINS X15

Technical Service Bulletin

Technical Service Bulletin:

TSB170002

Released Date: 07-May-2019
Injector Sleeve Seal Leakage Causing Fuel and Coolant Cross-Contamination

Injector Sleeve Seal Leakage Causing Fuel and Coolant Cross-Contamination

 

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

  • ISX15 CM2250
  • ISX15 CM2250 SN
  • ISX15 CM2350 X101
  • PowerGen QSX15 CM2250
  • PowerGen QSX15 CM2250 ECF
  • QSX15 CM2250 ECF
  • QSX15 CM2250 X115
  • QSX15 CM2350 X105
  • QSX15 CM2350 X106
  • X15 CM2350 X116B
  • X15 CM2350X114B

 

Issue

Symptom:

  • Fuel in coolant system
  • Coolant in fuel system
  • Fault Code 418 (water-in-fuel indicator)
  • Pressurized cooling system

Root Cause:

  • Shrinkage of injector sleeve seal material can create a leak path between cylinder head cooling jacket and injector bore.

 

Verification

Note : Injector sleeve seal material degradation is only one possible cause of symptoms discussed in this document. Published troubleshooting procedures must be followed to determine root cause.

  • Inspection for fuel or coolant leakage past injector sleeve seal is only to be performed when other possible sources of contamination, such as fuel heaters, have been ruled out.
  • Injector sleeve seal leaks can be verified in-chassis by pressure testing cooling system with injectors removed and monitoring upper edge of injector sleeves for bubbles or coolant leaking into injector bore. See corresponding Service Manual.

Reference Procedure 002-014 in Section 2.

  • If cylinder head has been removed, injector sleeve seal leaks can be verified by leak testing coolant passage using service tool, Part Number 3164231. See corresponding Service Manual. Reference Procedure 002-004 in Section 2.
Figure 1, Small Amount of Coolant Leakage Past Injector Sleeve.

Figure 1, Small Amount of Coolant Leakage Past Injector Sleeve.

Figure 2, Large Amount of Coolant Leakage Past Injector Sleeve.

Figure 2, Large Amount of Coolant Leakage Past Injector Sleeve.

 

Resolution

  • Cylinder head assemblies are not to be replaced if injector sleeve is found leaking.
  • If leaking injector sleeve is root cause of coolant or fuel cross-contamination, install retaining ring, Part Number 4312298 in all six injector sleeves. See Service Instructions and Service Parts Availability Sections below.
  • Even if only one injector sleeve is found leaking, retaining rings must be installed in all six injector sleeves.
  • Installation of a retaining ring is a onetime repair only. If an injector sleeve is found to be leaking again and a retaining ring was previously installed, Service Manual Procedure 002-014 in Section 2 will direct further investigation of cylinder head to better understand severity of fuel or coolant leak or causes besides sleeve seal material being compromised.
  • Inspect the fuel tank and filter for contamination.

 

Service Instructions

  • See video link below for instructions on installation of retaining rings.

Note : http://tsb.cumminsvirtualcollege.com/TSB170002.aspx

( http://tsb.cumminsvirtualcollege.com/TSB170002.aspx )

  • See corresponding Service Manual. Reference Procedure 002-014 in Section 2 for instruction on repairing a leaking injector sleeve using service tool, Part Number 5394735, and retaining ring, Part Number 4312298.

 

Service Parts Availability

Cummins® warranty will reimburse an authorized repair location once for the purchase of the installation tool, Part Number 5394735, to support a warrantable injector sleeve repair. The installation tool part number should be claimed in the parts section of the warranty claim for the cylinder head repair. The tool is reusable and is to be claimed only one time per repair location.

Table 1, Service Parts
Part Description Part Number Quantity
Kit, Installer 5394735 1
Ring, Retaining 4312298 6

 

Publications Affected

Table 2, Publications Affected
Manual
Type
Engine Bulletin
Number
Procedure
Title
Procedure Section
Service Manual ISX15

CM2250

4022250 Injector Sleeve,

Cylinder Head

Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/1 32/132002-014-rmixar5.html) 2
ISX15

CM2250

SN

4310736 Refer to Procedure 002-014 (/qs3/pubsys2/xml/en/p rocedures/175/175-002-014.html)
ISX15

CM2350

X101

4310641 Refer to Procedure 002-014 (/qs3/pubsys2/xml/en/p rocedures/1 73/173002-014-trprix13.html)
QSX15

CM2250

X115

4388739 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/431/431-002-014.html)
QSX15

CM2350

X105

4332667 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/250/250-002-014.html)
QSX15

CM2250

ECF

2883557 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/1 32/132002-014-trvqxi6.html)
QSX15

CM2350

X106

4332712 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/221/221-002-014.html)
PowerGen

QSX15

CM2250

4310664 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/1 32/132002-014-trvqxg5na.ht ml)
PowerGen

QSX15

CM2250

ECF

4310661 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/1 32/132002-014-trvqxg5na.ht ml)
X15

CM2350X1

14B

5411181 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/377/377-002-014.html)
X15

CM2350

X116B

5411186 Refer to Procedure 002-014 (/qs3/pubsy s2/xml/en/p rocedures/453/453-002-014.html)

 

Document History

Date Details
2017-1-3 Module Created
2019-4-15 Added "Inspect the fuel tank or filter for contamination."

Last Modified: 07-May-2019


Technical Service Bulletin:
TSB170002

https://www.nhtsa.gov/recalls?nhtsaId=10162095

https://static.nhtsa.gov/odi/tsbs/2019/MC-10162095-9999.pdf

Download (PDF, 222KB)


 

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Last update on 2019-08-22 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-08-22 / Affiliate links / Images from Amazon Product Advertising API

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