HUB-SPLINED 1T0996 - Caterpillar

Use this procedure to troubleshoot high coolant temperature or use this procedure if one of the following event codes is active. Refer to Troubleshooting, "Event Codes" for information about event codes. Access the engine monitoring system on Caterpillar Electronic Technician (ET) to view the current trip points for these codes. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".
Table 1
J1939 Code and Description CDL Code and Description Comments
110-0
Engine Coolant Temperature : High - most severe (3) E361 (1)
High Engine Coolant Temperature The code is logged.
110-15
Engine Coolant Temperature : High - least severe (1) E361(2)
High Engine Coolant Temperature The code is logged.
Engine power is derated.
110-16
Engine Coolant Temperature : High - moderate severity (2) E361(3)
High Engine Coolant Temperature The code is logged.
If the ground speed of the vehicle is zero and the parking brake is set, the engine will be shut down. Probable Causes
Diagnostic Codes and Event Codes
Low coolant level
Radiator
Coolant leak
Engine cooling fan
Pressure cap for the radiator
Temperature Control Module (TCM)
Jacket water pump
Engine overloadRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Determine if the event code that directed to this story is present.
C. Look for active diagnostic codes that are associated with the system for the event code that directed to this story.
Codes
Result: An associated code is present.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A 110–0, 110–15, or 110–16 code is present.
Proceed to the next step.
Result: No active codes
STOP
2. Low Coolant Level
A. Inspect the coolant level.
Coolant
Result: The coolant level is OK.
Proceed to the next step.
Result: The coolant level is NOT OK.
Repair: Add coolant
If the problem is not resolved, proceed to the next step.
3. Radiator
A. Check the cooling fins on the radiator for dirt and/or for debris.
B. Check the cooling fins on the radiator for damage.
C. Check the radiator for internal blockage. Check the temperature difference between the inlet and the outlet of the radiator.
Radiator
Result: The cooling fins are clean.
Continue with this step.
Result: The cooling fins are not clean.
Repair: Remove dirt and/or debris.
Result: The cooling fins are damaged.
Repair: Refer to the Systems Operation/Testing and Adjusting manual for instructions for testing and inspecting the cooling system.
Result: The cooling fins are not damaged.
Continue with this step.
Result: The radiator has an internal blockage.
Repair: Clean the radiator or perform the necessary repairs.
Result: The radiator does not have an internal blockage
If the problem is not resolved, proceed to the next step.
4. Coolant Leak
A. Check the cooling system for leaks.
1. Inspect the coolant for presence of bubbles.
Note: Cavitation will reduce the efficiency of the cooling system.
2. Check the cooling system for combustion gases.
Leak
Result: The cooling system is OK.
Proceed to the next step.
Result: The cooling system is NOT OK.
Repair: Or replace