Engine Troubleshooting| Symptom | Problem | Solution | Engine hard to start or will not start | Fuel pump not operating properly | Turn key on and listen for pumping noise to make sure that fuel pump is working | | | Incorrect starting procedure | Review starting procedure | | | Blown fuse | Check fuse | | | No fuel | Check fuel tank | | | Air in fuel line | Bleed fuel line (Turn key to ”RUN” for 60 seconds with engine off) | | | 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 elements | | | Dirty or faulty injectors | Have your John Deere™ dealer check injectors | | | Injection pump shutoff not reset | Turn key switch to OFF then to ON | | | Engine starts, then unexpectedly shuts down | Immobilizer ignition equipped tractor started with incorrect key. See Immobilizer Ignition |
Engine knocks | Insufficient oil | Add oil | | | During warm-up, pilot injection system will activate and deactivate depending on engine operating temperature | This is normal operation | | | Low coolant temperature | Replace thermostats | | | Engine overheating | See Engine Overheats |
Engine runs irregularly or stalls frequently | Low coolant temperature | Replace thermostats | | | Clogged fuel filters | Replace filter elements | | | Water, dirt, or air in fuel system | Drain, flush, fill, and bleed system | | | Vent on fuel tank obstructed | Clean vent under rear cab panel | | | Dirty or faulty injectors | Have your John Deere™ dealer check injectors |
Below normal engine temperature | Defective thermostat | Replace thermostats | | | Defective temperature gauge or sender | See your John Deere™ dealer | | | Variable speed fan running too fast | See your John Deere™ dealer |
Variable Fan Speed Drive surges at low engine rpm | Fan drive surging is NOT normal | See your John Deere™ dealer |
Throttle does not allow full engine rpm | IVT™/AutoPowrAutoPowr is a trademark of Deere & Company Auto Shift (or Load Control) may not be set properly | See Operating IVT™/AutoPowr™ Transmission | | | FieldCruise™ may be on and limiting max engine rpm | Check the settings for FieldCruise™ in the CommandCenter™. Make sure full rpm has been selected on the display | | | Cold oil can limit engine speed to 1500 rpm | Warm up transmission/hydraulic oil See your John Deere™ dealer if problem persists |
Lack of power | Engine overloaded | Reduce load or shift to lower gear | | | Low fast idle speed | Make sure that FieldCruise™ is set to MAX rpm Make sure that IVT™/AutoPowr™ is set correctly If problem persists, see your John Deere™ dealer | | | Intake air restriction | Service air cleaner | | | Clogged fuel filters | Replace fuel filter elements | | | Incorrect type of fuel | Use correct fuel | | | Overheated engine | See Engine Overheats | | | Below normal engine temperature | Remove and check thermostat | | | Incorrect valve clearance | See your John Deere™ dealer | | | Dirty or faulty injectors | Have your 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 inlet | Clean or replace fuel line | | | Incorrect ballast | Adjust ballast to load. See Performance Ballasting |
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 | | | Oil leaks | Check for leaks in lines, around gaskets and drain plug | | | Defective turbocharger | See your John Deere™ dealer | | | Restricted engine breather tube | Unclog engine breather tube |
Engine emits 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 | | | Injection nozzles dirty | 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 and clean coolers | | | Engine overloaded | Shift to lower gear or reduce load | | | Low engine oil level | Check oil level. Add oil as required | | | Low coolant level | Fill de-aeration tank to correct level, check radiator, and hoses for loose connections or leaks | | | Faulty radiator cap | Replace radiator cap | | | Loose or defective fan belt | Check and replace belt as needed | | | Fan drive running too slow | Make sure that bleed screw under fan drive is fully closed | | | Cooling system needs flushing | Flush cooling system | | | Defective thermostat | Replace thermostat | | | Defective temperature gauge or sender | See your John Deere™ dealer |
High fuel consumption | Clogged or dirty air cleaner | Service air cleaner | | | Engine overloaded | Reduce load or shift to lower gear | | | Injection nozzles dirty | See your John Deere™ dealer | | | Implement incorrectly adjusted | See implement operator’s manual | | | Excessive ballast | Adjust ballast to load. See Performance Ballasting |
John Deere is a trademark of Deere & Company
AutoPowr is a trademark of Deere & Company
FieldCruise is a trademark of Deere & Company
CommandCenter is a trademark of Deere & Company
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