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GLASS 3C8449 - Caterpillar


3C8449 GLASS Caterpillar parts
Rating:
56
Alternative (cross code) number:
CA3C8449
3C-8449
3C8449
Caterpillar 3C8449 GLASS
Weight: 0.53 pounds 0 kg.

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Information:

Probable Causes
Engine speed/timing sensor(s)
Electrical connectors
Injector
Fuel supply
Air inlet restrictions
Exhaust restrictions
Accessory equipmentRecommended Actions
Engine Speed/Timing Sensor(s)
Check the calibration of the engine speed/timing sensor if a CID-FMI 261-13 Engine Timing calibration required diagnostic code is active. Refer to the calibration procedure Troubleshooting, "Engine Speed/Timing Sensor - Calibrate".Electrical Connectors
Check for the correct installation of the connectors for the Electronic Control Module (ECM) J1/P1 and/or J2/P2. Check for the correct installation of the applicable fuel injector connectors. Repair the connector and/or replace the connector. Refer to the diagnostic functional test Troubleshooting, "Inspecting Electrical Connectors".Injector
Check for active diagnostic codes that are associated with the circuits for the fuel injector. Check that the injector trim codes have been entered. Perform the "Injector Solenoid Test". Verify that the ECM is energizing all the injector solenoids. Refer to the diagnostic functional test Troubleshooting, "Injector Solenoids".Fuel Supply
Check the fuel lines for the following problems: restrictions, collapsed lines and pinched lines. If problems are found with the fuel lines, repair the lines and/or replace the lines.
Check the fuel tank for foreign objects which may block the fuel supply.
Prime the fuel supply if any of the following procedures have been performed:
Replacement of the fuel filters
Service on the low pressure fuel supply circuit
Replacement of unit injectorsRefer to the Operation and Maintenance Manual for the correct procedure.Note: A sight glass in the fuel supply line is helpful in diagnosing air in the fuel.
Cold weather adversely affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold weather operation.
Check the fuel pressure after the fuel filter while the engine is being cranked. Refer to the Systems Operation/Testing and Adjusting manual for the correct pressure values. If the fuel pressure is low, replace the fuel filters. If the fuel pressure is still low, check the following items: fuel transfer pump, fuel transfer pump coupling and fuel pressure regulating valve. Refer to Systems Operation/Testing and Adjusting for more information. Air inlet Restrictions
Inspect the engine air cleaner. Replace plugged air filters and/or clean the filters. Check the air inlet systems for restrictions and for leaks.Exhaust Restrictions
Check the exhaust systems for restrictions and for leaks.Accessory Equipment
Check attached accessory equipment. Ensure that the accessory equipment is not lugging down the engine.


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