The engine overheats.
Possible Cause Corrective Action
Radiator screen is dirty. Clean the radiator screen.
The radiator is dirty. Clean the radiator.
The coolant level is low. Inspect the coolant level, add coolant as
required.
The engine compartment has debris
buildup.
Clean the engine compartment.
Defective radiator cap. Replace the radiator cap.
Defective thermostat. Replace the thermostat.
Blown head gasket. Replace the head gasket.
The oil light comes on when the engine is running.
Possible Cause Corrective Action
The oil level is low. Check the oil level add oil as needed.
Faulty oil sender. Replace the oil sender as needed.
Faulty oil pump. Replace the oil pump as needed.
The engine emits white smoke.
Possible Cause Corrective Action
Engine temperature is low. Allow the engine to warm up.
A faulty head gasket. Replace the head gasket as needed.
There is water in the combustion
chamber.
Inspect engine.
The engine uses excessive fuel.
Possible Cause Corrective Action
Clogged air cleaner. Inspect and clean or replace the air filter
as needed.
Dirty or faulty fuel injectors. Clean and repair/replace the fuel
injectors as needed.
Troubleshooting: General Engine Problems Page 3–10 4520P
09.40003Rev 00
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