HOSE 5P2094 - Caterpillar

Note: Some white smoke may be present during cold start-up conditions and during acceleration after a prolonged period at low idle. If the white smoke persists, there may be a fault.Probable Causes
Diagnostic codes
ECM Flash file
Starting aids
Coolant temperature
Cooling system
Fuel quality
Valve lash
Low compression (cylinder pressure)
Electronic unit injectors
Individual malfunctioning cylinderRecommended Actions
Diagnostic Codes
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 1
Troubleshooting Test Steps    Values    Results    
1. Diagnostic Codes
A. Establish communication between the electronic service tool and the Electronic Control Module (ECM). Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Determine if a code is active or logged.
   
Diagnostic codes
   
Result: A code is active or logged.
Troubleshoot any active codes before continuing with this procedure.
Result: A code is not active or logged.
Proceed to Test Step 2.
   
2. ECM Flash File
A. Verify that the latest flash file is installed in the ECM.
   
Flash file
   
Result: The latest flash file is not installed.
Install the latest flash file. Refer to Troubleshooting, "ECM Software - Install" for the correct procedure. Verify that the repair eliminates the fault.
Result: The latest flash file is installed.
Proceed to Test Step 3.
   
3. Starting Aids
A. Check operation of starting aids. Verify that the starting aids are operating correctly. Refer to Troubleshooting, "Glow Plug Starting Aid - Test".
B.Check the configuration screen on the electronic service tool in order to verify that ether injection is not enabled.
   
Starting aid
   
Result: The starting aids are not operating correctly.
Make the necessary repairs. Verify that the repair corrected the fault.
Result: The starting aids are operating correctly.
Proceed to Test Step 4.
   
4. Coolant Temperature
A. Check that the water temperature regulator is operating correctly. Refer to Systems Operation, Testing, and Adjusting, "Water Temperature Regulator - Test".
   
Coolant temperature
   
Result: The water temperature regulator is not operating correctly.
Replace the water temperature regulator. Verify that the repair corrected the fault.
Result: The water temperature regulator is operating correctly.
Proceed to Test Step 5.
   
5. Cooling System
A. Check for an internal coolant leak into the cylinder and/or the exhaust. Refer to Systems Operation/Testing and Adjusting, "Cooling System".
   
Internal coolant leak
   
Result: There is an internal coolant leak.
Make the necessary repairs. Verify that the repair eliminated the fault.
Result: There is not an internal coolant leak.
Proceed to Test Step 6.
   
6. Fuel Quality
A. Check the fuel quality. Refer to Systems Operation, Testing, and Adjusting, "Fuel Quality - Test".
B. Refer to Operation and Maintenance Manual for information on the proper characteristics of the fuel for the engine.
   
Fuel
   
Result: The fuel quality is not OK.
Drain the fuel system and replace the fuel filters. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter (Water Separator) Element - Replace" and Operation and Maintenance Manual, "Fuel System Filter - Replace".
Fill the fuel system with fuel that meets the standard in the Operation and Maintenance Manual, "Fluid Recommendations".
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime".
Verify that the procedure has eliminated the noise.
Result: The fuel quality is OK.
Proceed to Test Step 7.
   
7.