C13 Industrial Engine Caterpillar

Oil Temperature Is High

Usage:

C13 JR9

Use this procedure in order to troubleshoot high oil temperature or use this procedure if one of the following event codes is active.

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Table 1
Diagnostic Trouble Codes
J1939 Code	Code Description (code descriptions may vary)	Comments
175-15	Engine Oil Temperature 1 : High - least severe (1)	The code is logged.
175-16	Engine Oil Temperature 1 : High - moderate severity (2)	The code is logged. Engine power is derated.
175-0	Engine Oil Temperature 1 : High - most severe (3)	The code is logged. The engine is shut down.

If the engine is shut down due to a high engine oil temperature, the power to the engine Electronic Control Module (ECM) must be cycled in order to restart the engine.

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Table 2
Associated Codes
J1939 Code
175-3
175-4
110-0
110-15
110-16

Probable Causes

Diagnostic codes and event codes
Coolant temperature is high
Oil level is low
Oil cooler bypass valve
Oil cooler core problem

Recommended Actions

Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.

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Table 3
Troubleshooting Test Steps	Values	Results
1. Check for Associated Diagnostic Trouble 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 an associated diagnostic code is present.	Associated code	Result: An associated code is present. Troubleshoot any associated codes before continuing with this procedure. Result: A 175-0, 175-15, or 175-16 code is present. Proceed to Step 2.
2. Check the Engine Oil Level	Level	Result: The engine oil level is OK. Proceed to Step 3. Result: The level is NOT OK. Add oil and repair any leaks. If the problem is not resolved, Proceed to Step 3.
3. Check the Engine Oil Cooler Bypass Valve A. Ensure that the bypass valve is not stuck in the open position. Clean the bore for the valve. Inspect the components of the engine oil cooler bypass valve for damage.	Valve	Result: The valve is OK. Proceed to the next step. Result: The valve is NOT OK. Free the valve or replace the valve. If the problem is not resolved, Proceed to Step 4.
4. Check the Engine Oil Cooler Core Check the engine oil cooler core for damage and for plugging. Clean the engine oil cooler core or replace the engine oil cooler core, if necessary.	Cooler	Result: The cooler core is NOT OK. Clean the engine oil cooler core or replace the engine oil cooler core, if necessary.