TSB1900420624201

New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 1 of 9
Technical Service Bulletin
Technical Service Bulletin:
Released Date: 24-Jun-2019
TSB190042
New Vented Coolant Drain Line Kit to Reduce Variable Geometry
Turbocharger Actuator Overheating: FC2636 and FC1894
New Vented Coolant Drain Line Kit to Reduce
Variable Geometry Turbocharger Actuator
Overheating: FC2636 and FC1894
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
Engines:
• ISL9 CM2350 L101
• L9 CM2350 L123B
Original Equipment Manufacturer (OEM):
• Pierce
◦ Fire Truck
• Nova
• Gillig
• MCI
• ADL
• EL-DORADO
• NABI
• Autocar
◦ Transit
◦ Fire Truck
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 2 of 9
Issue
Symptom:
• STOP ENGINE light with FC2636
• Amber lamp with FC1894
Root Cause:
• Turbocharger actuator overheating.
Verification
• Active or logged occurences of fault codes 2636 or 1894.
• Verify unit is not equipped with new vented turbocharger coolant drain line kit part
number. See Table 1 below.
Resolution
Replace turbocharger actuator vented coolant drain line with corresponding kit.
Service Instructions
• New turbocharger actuator vented coolant drain line kits are available with a
horizontal or vertical outlet.
• Turbocharger actuator vented coolant drain line orientation must be determined in
order to determine correct service kit to be ordered. See Figures 1, 2, 3, and 4 for
existing product and service kit layouts.
• See Figure 5 for new production routing.
• See Table 1 for kit part numbers.
• For new turbocharger actuator coolant drain line kit installation, see corresponding
Service Manual. Reference Procedure 008-017 in Section 08.
• Dips or sags of the coolant vent line below the bottom surface of the actuator should
be avoided. If the coolant vent line to the OEM top tank, dips or sags below the
bottom surface of the turbocharger actuator, the coolant vent line must be shortened
and raised to be above the top surface of the turbocharger actuator. See Figure 1
below.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 3 of 9
Figure 1, Coolant Vent Line Routing. OEM Top Tank (1). VGT Actuator (2).
Service Parts Availability
Service kits contain a new turbocharger actuator vented coolant drain tube with vent
accommodation, turbocharger vent line and associated hardware.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 4 of 9
Figure 2, Existing Production Turbocharger Actuator Coolant Lines, Part Number
4352363.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 5 of 9
Figure 3, New Turbocharger Actuator Coolant Lines Kit with Horizontal Outlet, Part
Number 5473157.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 6 of 9
Figure 4, New Turbocharger Actuator Coolant Lines Kit with Vertical Outlet, Part
Number 5473158.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 7 of 9
Figure 4, New Self-Assembled Turbocharger Actuator Coolant Lines Kit, Part Number
5473159.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 8 of 9
Figure 6, Existing Production Turbocharger Actuator Coolant Drain Tube With Vent
Accommodation (Left), Part Number 5302803. New Production Turbocharger Actuator
Coolant Drain Tube with Vent Accommodation (Right), Part Number 5446929.
Service Parts Availability
Service parts are available. See Table 1 for part numbers.
Table 1, Service Parts
Part
Description
Existing Part
Number
Obsolete
Superseded
New Part
Number
Horizontal
vented coolant
drain Out Kit
4352363
No
No
5473157
Vertical vented
coolant drain
Out Kit
4352363
No
No
5473158
SelfAssembled Kit
4352363
No
No
5473159
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019
New Vented Coolant Drain Line Kit to Reduce Variable Geometry Turbocharger Actuato... Page 9 of 9
Table 2, Kit Part Number and Confirmed Application Compatibility
Kit Part Number
OEM
5473157
Pierce Fire Trucks
5473158
Nova
Gillig
MCI
ADL
EL-DORADO
NABI
5473159
Autocar
Production Status
Implemented for production. See Table 2.
Table 3, Production Information
ESN First
Build Date1
Plant
74287491
16 March 2018
Rocky Mount Engine Plant
Engine build date can be found on engine dataplate.
1
Document History
Date
Details
2019-3-19
Module Created
2019-6-20
Product Problem Solving (PPS)
Last Modified: 24-Jun-2019
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190042.html
6/27/2019