O-RING 0965982 - Caterpillar

Use this procedure in order 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) in order to view the current trip points for these codes. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".
Table 1
Event Code
Description Conditions which Generate this Code System Response
E361(1) High Engine Coolant Temperature The engine coolant temperature is above the trip point temperature for the programmed delay time. The code is logged.
E361(2) High Engine Coolant Temperature The code is logged.
Engine power is derated.
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.
4193-0 Engine Coolant Pump Outlet Temperature : High - most severe (3) The engine coolant temperature is above the trip point temperature for the programmed delay time. This code is generated by the Temperature Control Module (TCM) (MID No. 094). The code is logged.
The TCM commands the valve to open fully. 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. Download the "Product Status Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. Determine if the event code that directed to this story is present.
D. Look for active diagnostic codes that are associated with the system for the event code that directed to this story.
E361 or 4193-0
Result: An associated code is present.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: An E361 or 4193-0 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