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FILM-IDENTIFICATION 3904520 - Caterpillar



3904520 FILM-IDENTIFICATION Caterpillar parts FILM
Rating:
71
Alternative (cross code) number:
CA3904520
390-4520
3904520
Caterpillar 3904520 FILM-IDENTIFICATION
Weight: 0.04 pounds 0 kg.

Buy FILM-IDENTIFICATION 3904520 Caterpillar genuine, new aftermarket tractor parts with delivery

Number on catalog scheme: 5
 
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Information:

Probable Causes
Check for diagnostic trouble codes
Electrical connections not properly connected.
Intermittent throttle signal
Fuel system components
Fuel supply pressure
Restriction in the air inlet and exhaust system
Excessive temperature of the turbocharger that causes engine derate Recommended Actions
Note: If the problem only occurs under certain conditions, test the engine under those conditions. Examples of certain conditions are high engine speed, full load, and engine operating temperature. Troubleshooting the symptoms under other conditions can give misleading results.
Table 1
Troubleshooting Test Steps    Values    Results    
1. Diagnostic Codes
A. Certain codes may derate engine power. Connect Cat® Electronic Technician (ET) and check for active codes and/or for logged codes.
   
Diagnostic Codes    
Result: A diagnostic code is active or logged.
Repair: Troubleshoot any codes that are present before continuing with this procedure.
Result: A diagnostic code is not active or logged.
Proceed to Test Step 2.
   
2. Electrical Connections
A. Verify that the following connectors are installed correctly:
Electrical connectors for the ECM
Connectors for the wiring harness under the valve cover
Connectors for the engine speed/timing sensors
   
Electrical Connectors    
Result: The connectors are installed correctly.
Proceed to Test Step 3.
Result: The connectors are not installed correctly.
Repair: Install the connectors correctly. Refer toTroubleshooting, "Electrical Connectors - Inspect" for the proper troubleshooting procedure.
   
3. Check for Intermittent Diagnostic Codes
A. Certain diagnostic codes may cause poor performance. Connect Cat ET and check for active codes and/or for logged codes.
   
Intermittent Codes    
Result: Intermittent codes are present.
Repair: Troubleshoot any codes that are present before continuing with this procedure.
Result: Intermittent codes are not present.
Proceed to Test Step 4.
   
4. Intermittent Throttle Signal
A. Monitor the status for "Throttle Position" on Cat ET.
B. Verify that the status for "Throttle Position" is stable and that the engine is able to reach high idle speed.
Refer to Troubleshooting, "Speed Control - Test".
   
Throttle Signal    
Result: The status for "Throttle Position" is stable.
Proceed to Test Step 5.
Result: The status for "Throttle Position" is not stable.
Repair: Make the necessary repairs. Refer to Troubleshooting, "Speed Control - Test".
   
5. Fuel System
A. Ensure that the fuel system is operating properly.
B. Start the engine.
C. Perform the "Fuel System Verification Test" on Cat ET.
   
Fuel System Verification Test    
Result: The "Fuel System Verification Test" was successful.
Proceed to Test Step 6.
Result: The "Fuel System Verification Test" was not successful.
Repair: Repair the cylinders that failed the "Fuel System Verification Test". Reset all active codes and clear all logged codes. Verify that the repair has eliminated the problem in the cylinder.
   
6. Fuel Supply Pressure
A. Check the fuel pressure. Ensure that the fuel is stable. Refer to Systems Operation/Testing and Adjusting for the procedure to check the fuel pressure manually.
B. Visually check the fuel level. Do not rely on the fuel gauge only. If necessary, add fuel. If the engine has been run out of fuel, purge the air from the fuel system.
C. Ensure that the fuel supply valve (if equipped) is in the full OPEN position.
D. Check the fuel lines for the following problems:
Restrictions
Collapsed lines
Pinched lines
Loose connections
E. Prime the fuel system if any of the following

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