RENR5042-02 37 Troubleshooting Section Recommended Actions Engine Oil Temperature Reading Engine Oil Cooler Core Compare the engine oil temperature reading from the Caterpillar Electronic Technician (ET) to the temperature from a 6V-9130 Temperature Adapter (MULTIMETER). Verify that the readings are reasonably close. 1. Inspect the engine oil cooler core for leaks. If a leak is found, replace the oil cooler core. Refer to Disassembly and Assembly, “Engine Oil Cooler - Remove”. Coolant temperature 2. Drain the crankcase and refill the crankcase with clean engine oil. Install new engine oil filters. Refer to the Operation and Maintenance Manual for more information.
If a high coolant temperature condition is also occurring, refer to Troubleshooting, “Coolant Temperature is Too High”. Cylinder Head Gasket Engine Oil Cooler Bypass Valve 1. Remove the cylinder head. Refer to Disassembly and Assembly, “Cylinder Head - Remove” for the correct procedure. Clean the engine oil cooler bypass valve and inspect the engine oil cooler bypass valve. Clean the bore for the valve. Ensure that the bypass valve is not stuck in the open position. Replace the bypass valve, if necessary. 2. Check the cylinder liner projection. Refer to Systems Operation/Testing and Adjusting for the correct procedure. Engine Oil Cooler Core 3.
Install a new cylinder head gasket and new water seals in the spacer plate. Refer to Disassembly and Assembly, “Cylinder Head - Install” for the correct procedure. Clean the engine oil cooler core or replace the engine oil cooler core. i02253823 Engine Stalls at Low RPM i02214225 Engine Oil Temperature Is Too High SMCS Code: 1915-035 SMCS Code: 1348-035-TA Probable Causes Unit injectors Probable Causes Fuel supply Engine oil level Accessory equipment Engine oil temperature reading Coolant temperature Recommended Actions Engine oil cooler bypass valve Unit Injectors Engine oil cooler core 1.
Check for correct installation of the J1/P1 and J2/P2 connectors for the Electronic Control Module (ECM). Check for correct installation of the J300/P300 connectors for the unit injectors. Refer to Troubleshooting, “Electrical Connectors - Inspect”. Recommended Actions Engine Oil Level Inspect the engine oil level. If necessary, add oil. 2. Perform the “Injector Solenoid Test” with the Caterpillar Electronic Technician (ET) in order to determine if all of the injector solenoids are being energized by the ECM. 3. Perform the “Cylinder Cutout Test” with Cat ET in order to identify any injectors that might be misfiring.
Refer to Troubleshooting, “Injector Solenoid Circuit - Test” for the proper procedure.