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Troubleshooting
PY80265,05GO986 –19–10SEP05–3/4
Symptom Problem
Solution
Engine emits white smoke Improper type fuel. Use proper fuel.
Low engine temperature. Warm up engine to normal operating
temperature.
Defective thermostat. See your John Deere dealer.
Defective injection nozzles. See your John Deere dealer.
Engine out of time. See your John Deere dealer.
Cold start advance or light load See your John Deere dealer.
advance not functioning.
Engine emits black or gray Improper type of fuel. Use proper fuel.
exhaust smoke
Clogged or dirty air cleaner. Service air cleaner.
Engine overloaded. Reduce load or shift to a low gear.
Injection nozzles dirty. See your John Deere dealer.
Engine out of time. See your John Deere dealer.
Engine overheats Dirty radiator core, or grille screens. Remove all trash.
Engine overloaded. Shift to lower gear or reduce load.
Low engine oil level. Check oil level. Add oil as required.
Low coolant level. Fill radiator to proper level, check
radiator, and hoses for loose
connection or leaks.
Faulty radiator cap. Replace cap.
Loose or defective fan belt(s). Adjust belt tension(s).
Cooling system needs flushing. Flush cooling system.
Defective thermostat. See your John Deere dealer.
Defective temperature gauge or See your John Deere dealer.
sender.
Incorrect grade of fuel. Use proper fuel.
145-3
022607
PN=158
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