TIP-RIPPER 5332586 - Caterpillar

Table 1
Event Code    
Description    Default Conditions which Generate this Code    System Response    
E363(1) High Fuel Supply Temperature     The fuel temperature is above an acceptable level.     If equipped, the warning light will illuminate.
The code is logged.    
E363(2) High Fuel Supply Temperature     If equipped, the warning light will illuminate.
The code is logged.
The engine will default to a predetermined value. Probable Causes
Fuel pressure regulating valve
Fuel level
Fuel lines
Overheated engine
Fuel temperature sensorsRecommended Actions
Fuel Pressure Regulating Valve
An improperly operating fuel pressure regulating valve may cause high fuel temperature. If a problem is suspected, inspect the return fuel pressure regulating valve for contamination or debris. Clean any contamination or debris that may keep the regulating valve from operating properly. If debris is present, find the source of the contamination. If the return fuel pressure regulating valve is suspect, replace the valve assembly.Fuel Level
Ensure that the fuel tank contains enough fuel. As the fuel tank level decreases, the fuel temperature generally increases. Fuel Lines
Restricted fuel return lines may produce very high fuel temperatures. Ensure that the fuel return flow to the fuel tank is not obstructed.Overheated Engine
The fuel is returned through a passage in the cylinder head. Abnormally high ambient air temperature could cause the fuel temperature to reach the trip level. An overheated engine could cause the fuel temperature to reach the trip level.Fuel Temperature Sensors
Start the engine. Run the engine until normal operating temperature is achieved. Use Cat ET to monitor the following parameters:
"Fuel Temperature"
"Fuel Rail Temperature"Check the value of each parameter while the engine is at normal operating temperature. Ensure that the value for each of the parameters is reasonable.If necessary, troubleshoot the circuit and the fuel temperature sensor. Refer to Troubleshooting, "Sensor Signal (Analog, Passive) - Test".