EDGE-CUTTING 4T3004 - Caterpillar

Note: If this fault occurs only under load, refer to Troubleshooting, "Acceleration Is Poor or Throttle Response Is Poor".Probable Causes
Active codes and logged codes
Parameters
Accessory and/or parasitic loads
Flash file
Air inlet and exhaust system
Turbocharger
Fuel system
Fuel injectors
Derate or high altitude operationRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 1
Troubleshooting Test Steps    Values    Results    
1. Active Codes and Logged Codes
A. Establish communication between Cat® Electronic Technician (Cat®ET) and the Electronic Control Module (ECM).
B. Monitor the diagnostic codes on Cat ET. Certain diagnostic codes and/or event codes may cause poor performance.
Note: Wait at least 30 seconds in order for diagnostic codes to become active.
   
Codes
   
Result: There are active codes.
Repair: Troubleshoot any codes before continuing with this procedure.
Verify that the repair eliminated the problem.
Result: There are no active codes.
Proceed to Test Step 2.
   
2. Incorrect Parameters
A. Use Cat ET to verify that the correct engine parameters are being used. Refer to Troubleshooting, "Configuration Parameters" for additional information.
B. Verify that all of the parameters for parasitic loads are correct.
   
Parameters
   
Result: The parameters are configured correctly.
Proceed to Test Step 3.
Result: The parameters are not configured correctly.
Repair: Correctly configure the parameters.
Verify that the repair eliminated the problem.
   
3. Accessory and/or Parasitic Loads
A. Check all accessory equipment for problems that may create excessive load on the engine.
B. Check for any excess parasitic load on the engine.
   
Parasitic loads
   
Result: There is not an excessive load on the engine.
Proceed to Test Step 4.
Result: There is an excessive load on the engine.
Repair: Diagnose the problem and then repair the problem.
Verify that the repair eliminated the problem.
   
4. Incorrect Flash File
A. Verify that the latest flash file is installed in the Electronic Control Module (ECM). Refer to Troubleshooting, "ECM Software - Install" for the proper procedure.
   
Flash file
   
Result: The latest flash file is installed in the ECM.
Proceed to Test Step 5.
Result: The latest flash file is not installed in the ECM.
Repair: Install the latest flash file.
Verify that the repair eliminated the problem.
   
5. Restriction in the Air Inlet and Exhaust System
A. Check the air filter restriction indicator, if equipped. Clean plugged air filters or replace plugged air filters. Refer to the Operation and Maintenance Manual.
B. Check the air inlet and exhaust system for restrictions and/or leaks.
   
Restrictions
   
Result: There are restrictions in the air inlet or exhaust system.
Repair: Make the necessary repairs.
Verify that the repair eliminated the problem.
Result: There are no restrictions in the air inlet or exhaust system.
Proceed to Test Step 6.
   
6. Proper Operation of the Turbocharger
A. Check for proper operation of the turbocharger.
   
Turbocharger
   
Result: The turbocharger is operating properly.
Proceed to Test Step 7.
Result: The turbocharger is not operating properly.
Repair: Repair or replace the turbocharger.
Verify that the repair eliminated the problem.
   
7. Fuel System
A. Visually check the fuel level in the fuel tank. Do not rely on the fuel gauge only.
B. Ensure that the fuel supply valve (if equipped) is in the full OPEN position.
C. Inspect the fuel