RENR5042-02 43 Troubleshooting Section Water Temperature Regulators Pistons Check the water temperature regulators for correct operation. Refer to Systems Operation/Testing and Adjusting, “Cooling System” for the proper procedure. Rings Cylinder liners Unit Injectors i02214294 Exhaust Temperature Is Too High Use Cat ET to perform the cylinder cutout test. Try to simulate the conditions for the test that were experienced during operation. Cut out each cylinder individually for approximately one minute in order to isolate any misfiring cylinders. If the misfire can be isolated to a specific cylinder, proceed to Troubleshooting, “Injector Solenoid Circuit - Test”. SMCS Code:
1088-035-TA Probable Causes Flash File Diagnostic codes Verify that the correct flash file is installed. The flash file that is installed in the Electronic Control Module (ECM) will be displayed on the “Configuration” screen on Cat ET. Electrical connectors Air inlet and exhaust system Recommended Actions Fuel Supply 1. Monitor the exhaust for smoke while the engine is being cranked. Diagnostic Codes Connect the Caterpillar Electronic Technician (ET) and check for active diagnostic codes. Troubleshoot any active diagnostic codes before continuing with this procedure. If no smoke is present, there may be a problem with the fuel quality or there may be a problem with the fuel supply. 2.
Check the fuel pressure. Refer to Systems Operation/Testing and Adjusting, “Fuel System Pressure - Test”. Electrical Connectors Check for correct installation of the J2/P2 Electronic Control Module (ECM) connector and of the J300/P300 unit injector connectors. Refer to Troubleshooting, “Electrical Connectors - Inspect” for more information. 3. Ensure that the fuel system has been primed. Refer to Systems Operation/Testing and Adjusting, “Fuel System - Prime”. 4. Check for fuel supply lines that are restricted. Air Inlet and Exhaust System 1. Check the air inlet manifold pressure. Check for air inlet restrictions and/or leaks.
Refer to Systems Operation/Testing and Adjusting, “Air Inlet and Exhaust System” for more information. 5. Cold weather adversely affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold weather operation. 2. Check for leaks between the exhaust manifold and the turbocharger. Check for exhaust restrictions. Refer to Systems Operation/Testing and Adjusting, “Air Inlet and Exhaust System” for more information. Cooling System Check for an internal coolant leak. Check for coolant in the engine oil, coolant in the cylinders, and coolant in the exhaust system.
Refer to Systems Operation/Testing and Adjusting, “Cooling System - Test”. Component Wear Check the following components for excessive wear: Valves