BUSHING ASSEM. (STD.) 8H5634 - Caterpillar

The probable causes of high fuel temperature
Associated codes
Fuel level in the tank
Fuel temperature sensor
Fuel Cooler (if equipped)
Fuel return pressure regulator
Restriction in the fuel lines
Fuel injectorUse this procedure in order to troubleshoot high fuel temperature. Use this procedure if one of the following event codes is active. Refer to Troubleshooting, "Event Codes" for information about event codes. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".Clear all "Active" codes using Cat ET before proceeding with the following procedure. Refer to Troubleshooting, "Diagnostic Capabilities - Clearing Active Codes for On Board Diagnostics (OBD)" for more information on clearing "Active" codes.
Table 1
Diagnostic Trouble Code    
CDL Code    J1939 Code    Code Description
(code descriptions may vary)    Comments    
E363 (1)     174-15     Engine Fuel Temperature 1 High     The fuel temperature is above an acceptable level.
If equipped, the action lamp will illuminate.
The code is logged.    
E363 (2)     174-16     Engine Fuel Temperature 1 High 2     The fuel temperature is above an acceptable level.
If equipped, the action lamp will illuminate.
The code is logged.
There may be a decrease in power.    
E363 (3)     174-0     Engine Fuel Temperature 1 High 3    
Table 2
Associated Codes    
Suspect Parameter Number (SPN)    
5580-17    
5580-18    
E1218    
Table 3
Troubleshooting Test Steps    Values    Results    
1. Determine the Code
A. Check for active codes and check for logged codes on Caterpillar Electronic Technician (ET).
B. Check Cat ET for any associated codes that are listed in Table 2. Troubleshoot any active codes before continuing with this procedure.
   
Diagnostic trouble code
   
Result: An associated code is active or logged.
Troubleshoot any active codes before continuing with this procedure.
Result: An associated code is not active or logged.
Proceed to Test Step 2.
   
2. Check the Fuel Level in the Fuel Tank
A. Check the fuel level in the fuel tank.
   
Fuel level
   
Result: The fuel level is acceptable.
Proceed to Test Step 3.
Result: The fuel level is not acceptable.
Fill the tank. Verify that the problem has been resolved. If the problem has not been resolved, proceed to Test Step 3.
   
Illustration 1 g02023433
Fuel supply lines
Illustration 2 g02024502
Fuel return line
Illustration 3 g02338176
Table 4
Troubleshooting Test Steps    Values    Results    
3. Inspect the Fuel Supply Lines
A. Visually inspect the fuel lines between the priming pump and the inlet to the cylinder head. Also, inspect the fuel cooler for dirt, debris, or damage, if equipped. Inspect the fuel return line from the head to the fuel tank. Inspect the lines for restrictions, pinching, and swelling. Refer to Systems Operation/Testing and Adjusting, "Fuel System - Inspect" for additional information.
B. Inspect the fuel cooler for dirt, debris, or damage, if equipped.
   
Dirt and debris or damage
   
Result: The fuel lines and the cooler (if equipped) are OK.
Proceed to Test Step 4.
Result: The fuel lines and the cooler (if equipped) are not OK.
Replace damaged fuel lines and/or fuel cooler (if equipped). Remove dirt or debris from fuel cooler fins (if equipped). Verify that the problem has been resolved.
If