Note: Refer to Troubleshooting, “Cat ET Service Features” for information about service features. Probable Causes Unit injectors Fuel supply Air supply Engine idle Accessory equipment…

Note: If the symptom is intermittent and the symptom cannot be repeated, refer to Troubleshooting, “Intermittent Low Power or Power Cutout”. If the symptom is…

Probable Causes Incorrect maintenance intervals and/or incorrect oil Contaminated engine oil Low oil pressure Leaks in the air system Inspect the fuel filters for contamination.…

Probable Causes Fuel supply Diagnostic codes and event codes Electrical power to the Electronic Control Module (ECM) Starting aids Engine shutdown switches Air shutoff system…

Probable Causes Configuration for the communications adapter Electrical connectors Communication adapter and/or cables Electrical power supply to the service tool connector Caterpillar Electronic Technician (ET)…

Probable Causes One of the following items may not be recorded correctly on the Caterpillar® Electronic Technician (ET): Passwords Serial numbers Total tattletale Reason code…

Probable Causes Low coolant level Air in coolant Water pump Environmental conditions Shunt line restriction Radiator or heat exchanger Water temperature regulator Coolant temperature sensor…

Probable Causes Water pump Engine oil cooler core Water-cooled turbocharger Cylinder head gasket Cylinder head Cylinder liner Cylinder block Recommended Actions Table 1 Troubleshooting Test…

Note: If this problem occurs only under load, refer to Troubleshooting, “Low Power/Poor or No Response to Throttle”. Probable Causes Diagnostic codes Event codes Programmable…

Refer to Special Instruction, SEHS7633, “Battery Test Procedure” for the proper testing procedures. Probable Causes Worn battery Switched battery circuit Recommended Actions Note: The procedures…