Engine Troubleshooting
NOTE: If using BIODIESEL blends above B20, the possibility of
some of the symptoms listed below, such as power loss, could increase.
| Symptom | Problem | Solution |
|
Engine cranks but will not start
| Incorrect starting procedure. |
Verify correct starting
procedure.
|
| |
No fuel.
|
Check fuel in tank.
|
| |
Exhaust restricted.
|
Check and correct exhaust
restriction.
|
| |
Fuel filter plugged or full of water.
|
Replace fuel filter
or drain water from filter.
|
| |
Injection pump not getting fuel or air in fuel system.
|
Check fuel flow at supply
pump or bleed fuel system.
|
| |
Faulty injection pump or nozzles.
|
Consult authorized diesel
repair station for repair or replacement.
|
|
Engine hard to start or will not start
| Engine starting under load. |
Disengage PTO.
|
| |
Improper starting procedure.
|
Review starting procedure.
|
| |
No fuel.
|
Check fuel tank.
|
| |
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 oil of proper viscosity.
|
| |
Improper type of fuel.
|
Consult fuel supplier;
use proper type fuel for operating conditions.
|
| |
Water, dirt, or air in fuel system.
|
Drain, flush, fill,
and bleed system.
|
| |
Clogged fuel filter.
|
Replace filter element.
|
| |
Dirty or faulty injection nozzles.
|
Have authorized servicing
dealer or engine distributor check injectors.
|
|
Engine knocks
| Low engine oil level. |
Add oil to engine crankcase.
|
| |
Low coolant temperature.
|
Remove and check thermostat.
|
| |
Engine overheating.
|
See “Engine Overheats”.
|
| |
Engine cold
|
Wrong or defective thermostat.
Remove and check thermostat.
|
|
Engine runs irregularly or stalls frequently
| Low coolant temperature. |
Remove and check thermostat.
|
| |
Clogged fuel filter.
|
Replace fuel filter
element.
|
| |
Water, dirt, or air in fuel system.
|
Drain, flush, fill,
and bleed system.
|
| |
Dirty or faulty injection nozzles.
|
Have authorized servicing
dealer or engine distributor check injectors.
|
|
Below normal engine temperature
| Defective thermostat. |
Remove and check thermostat.
|
| |
Defective temperature gauge or sender.
|
Check gauge, sender,
and connections.
|
|
Lack of power
| Engine overloaded. |
Reduce load.
|
| |
Intake air restriction.
|
Service air cleaner.
|
| |
Clogged fuel filter.
|
Replace filter elements.
|
| |
Improper type of fuel.
|
Use proper fuel.
|
| |
Injector tip deposits
|
Use John Deere approved
biodiesel fuel conditioners containing detergents.
|
| |
Overheated engine.
|
See “Engine Overheats”.
|
| |
Below normal engine temperature.
|
Remove and check thermostat.
|
| |
Improper valve clearance.
|
See CHECK AND ADJUST
VALVE CLEARANCE in Lubrication and Maintenance/ 2000 Hours/24 Months
section.
|
| |
Dirty or faulty injection nozzles.
|
Have authorized servicing
dealer or engine distributor check injectors.
|
| |
Injection pump out of time.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Turbocharger not functioning.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Leaking exhaust manifold gasket.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Restricted fuel hose.
|
Clean or replace fuel
hose.
|
| |
Low fast idle speed.
|
See your authorized
servicing dealer or engine distributor.
|
|
Low oil pressure
| Low oil level. |
Add oil.
|
| |
Improper type of oil.
|
Drain, fill crankcase
with oil of proper viscosity and quality.
|
|
High oil consumption
| Crankcase oil too light. |
Use proper viscosity
oil.
|
| |
Oil leaks.
|
Check for leaks in lines,
gaskets, and drain plug.
|
| |
Restricted crankcase vent tube.
|
Clean vent tube.
|
| |
Defective turbocharger.
|
See your authorized
servicing dealer or engine distributor.
|
|
Engine emits white smoke
| Improper type of fuel. |
Use proper fuel.
|
| |
Low engine temperature.
|
Warm up engine to normal
operating temperature.
|
| |
Defective thermostat.
|
Remove and check thermostat.
|
| |
Defective injection nozzles.
|
See your authorized
servicing dealer or engine distributor.
|
|
Engine emits black or gray exhaust smoke
| Improper type of fuel. |
Use proper fuel.
|
| |
Clogged or dirty air cleaner.
|
Service air cleaner.
|
| |
Engine overloaded.
|
Reduce load.
|
| |
Injector tip deposits
|
Use John Deere approved
biodiesel fuel conditioners containing detergents.
|
| |
Injection nozzles dirty.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Turbocharger not functioning.
|
See your authorized
servicing dealer or engine distributor.
|
|
Engine overheats
| Engine overloaded. |
Reduce load.
|
| |
Low coolant level.
|
Fill radiator to proper
level, check radiator and hoses for loose connections or leaks.
|
| |
Faulty radiator cap.
|
Have technician check.
|
| |
Stretched poly-vee belt or defective belt tensioner.
|
Check automatic belt
tensioner and check belts for stretching. Replace as required.
|
| |
Low engine oil level.
|
Check oil level. Add
oil as required.
|
| |
Cooling system needs flushing.
|
Flush cooling system.
|
| |
Defective thermostat.
|
Remove and check thermostat.
|
| |
Defective temperature gauge or sender.
|
Check coolant temperature
with thermometer and replace, if necessary.
|
| |
Incorrect grade of fuel.
|
Use correct grade of
fuel.
|
|
High fuel consumption
| Improper type of fuel. |
Use proper type of fuel.
|
| |
Clogged or dirty air cleaner.
|
Service air cleaner.
|
| |
Engine overloaded.
|
Reduce load.
|
| |
Improper valve clearance.
|
See CHECK AND ADJUST
VALVE CLEARANCE in Lubrication and Maintenance/ 2000 Hours/24 Months
section.
|
| |
Injector tip deposits
|
Use John Deere approved
biodiesel fuel conditioners containing detergents.
|
| |
Injection nozzles dirty.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Defective turbocharger.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Low engine temperature.
|
Check thermostat.
|
|
Undercharged electrical system
| Excessive electrical load from added accessories.
|
Remove accessories or
install higher output alternator.
|
| |
Excessive engine idling.
|
Increase engine rpm
when heavy electrical load is used.
|
| |
Poor electrical connections on battery, ground strap,
starter, or alternator.
|
Inspect and clean as
necessary.
|
| |
Defective battery.
|
Test battery.
|
| |
Defective alternator.
|
Test charging system.
|
|
Battery uses too much water
| Cracked battery case. |
Check for moisture and
replace as necessary.
|
| |
Defective battery.
|
Test battery.
|
| |
Battery charging rate too high.
|
Test charging system.
|
|
Batteries will not charge
| Loose or corroded connections. |
Clean and tighten connections.
|
| |
Sulfated or worn-out batteries.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Stretched poly-vee belt or defective belt tensioner.
|
Adjust belt tension
or replace belts.
|
|
Starter will not crank
| PTO engaged. |
Disengage PTO.
|
| |
Loose or corroded connections.
|
Clean and tighten loose
connections.
|
| |
Low battery output voltage.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Faulty start circuit relay.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Blown main system fuse.
|
Replace fuse.
|
|
Starter cranks slowly
| Low battery output. |
See your authorized
servicing dealer or engine distributor.
|
| |
Crankcase oil too heavy.
|
Use proper viscosity
oil.
|
| |
Loose or corroded connections.
|
Clean and tighten loose
connections.
|
|
Starter and hour meter functions; rest of electrical
system does not function
| Blown fuse on magnetic switch. |
Replace fuse.
|
|
Entire electrical system does not function
| Faulty battery connection. |
Clean and tighten connections.
|
| |
Sulfated or worn-out batteries.
|
See your authorized
servicing dealer or engine distributor.
|
| |
Blown main system fuse.
|
Replace fuse.
|
|
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OUOD006,00000EB-19-20071003
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