OMRE560318

Engine Troubleshooting

Symptom	Problem	Solution
Engine hard to start or will not start	Incorrect starting procedure	Review starting procedure
	No fuel	See Bleeding Fuel System
	Air in fuel line	Bleed fuel line
	Cold weather	Use cold weather starting aids
	Slow starter speed	See Starter Cranks Slowly
	Crankcase oil too heavy	Use correct oil viscosity
	Incorrect type of fuel	Consult fuel supplier; use correct fuel type for operating conditions
	Water, dirt, or air in fuel system	Drain, flush, fill and bleed system
	Clogged fuel filter	Replace filter
	Clogged sump screen	Drain tank, clean or replace screen
	Dirty or faulty injectors	Have John Deere Dealer check injectors

Engine knocks	Insufficient oil	Add oil
	Low coolant temperature	Replace thermostats
	Engine overheating	See Engine Overheats
	Valve lash	See your John Deere Dealer

Engine runs irregularly or stalls frequently	Low coolant temperature	Replace thermostats
	Clogged in-line filter or fuel filter	Replace filters and flush in-line filter
	Clogged sump screen	Drain tank, clean or replace screen
	Water, dirt, or air in fuel system	Drain, flush, fill and bleed system
	Restricted fuel line	Clean or replace fuel line
	Dirty or faulty injectors	Have John Deere Dealer check injectors

Below normal engine temperature	Defective thermostat or thermostat incorrectly installed	Remove and check thermostats
	Defective temperature gauge or sender	Check gauge, sender and connections
	Viscous fan locked up	See your John Deere Dealer

Lack of power	Engine overloaded	Reduce load or shift to lower gear
	Low fast idle speed	See your John Deere Dealer
	Intake air restriction	Service air cleaner
	Clogged in-line filter or fuel filter	Replace filter(s)
	Clogged sump screen	Drain tank, clean or replace screen
	Incorrect type of fuel	Use correct fuel
	Overheated engine	See Engine Overheats
	Below normal engine temperature	Replace thermostats
	Incorrect valve clearance	See your John Deere Dealer
	Dirty or faulty injectors	Have John Deere Dealer check injectors
	Turbocharger not functioning	See your John Deere Dealer
	Leaking exhaust manifold gasket	See your John Deere Dealer
	Implement incorrectly adjusted	See implement operator's manual
	Restricted fuel line	Clean or replace fuel line
	Incorrect ballast	Adjust ballast to load

Low oil pressure	Low oil level	Add oil
	Incorrect type of oil	Drain, fill crankcase with correct quality and viscosity of oil

High oil consumption	Crankcase oil too light	Use correct viscosity oil
	Incorrect oil refill	See CHECKING ENGINE OIL LEVEL in the Lubrication Section
	Oil leaks	Check for leaks in lines, around gaskets and drain plug
	Defective turbocharger	See your John Deere Dealer

Engine emits white smoke	Incorrect type of fuel	Use correct fuel
	Clogged or dirty air cleaner	Service air cleaner
	Engine overloaded	Reduce load or shift to a low gear
	Incorrect starting procedure	See STARTING THE ENGINE, in Operating The Engine Section
	Injection nozzles dirty	See your John Deere Dealer
	Engine out of time	See your John Deere Dealer
	Turbocharger not functioning	See your John Deere Dealer

Engine overheats	Dirty radiator core, oil cooler, 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 correct level, check radiator and hoses for loose connections or leaks
	Faulty radiator cap	See your John Deere Dealer
	Loose or defective fan belt	Check belt tensioner. Replace as needed
	Cooling system needs flushing	Flush cooling system
	Defective thermostat	Replace thermostats
	Defective temperature gauge or sender	See your John Deere Dealer

High fuel consumption	Incorrect type of fuel	Use correct fuel
	Clogged or dirty air cleaner	Service air cleaner
	Engine overloaded	Reduce load or shift to lower gear
	Incorrect valve clearance	See your John Deere Dealer
	Injection nozzles dirty	See your John Deere Dealer
	Implement incorrectly adjusted	See implement operator's manual
	Low engine temperature	Replace thermostats
	Excessive ballast	Adjust ballast to load
	Defective turbocharger	See your John Deere Dealer

Engine power reduced

Operating with heavy ballast and full power

See DRIVE TRAIN PROTECTION—9450R, 9510R and 9560R in Operating the Tractor Section

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