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Troubleshooting


Using Troubleshooting Chart

If you are experiencing a problem that is not listed in this chart, see your authorized dealer for service.

When you have checked all the possible causes listed and you are still experiencing the problem, see your authorized dealer.

Engine

IF

CHECK

Engine will not start

Wrong Engine oil viscosity.

Battery has low voltage.

Loose or corroded battery connections.

Blown fuse(s).

Cold start system not being used, or malfunctioning.

Stale fuel/improper fuel/low fuel level.

Dirty or Faulty Fuel Injectors.

Fuel shut-off valve turned off.

No fuel or improper fuel.

Plugged fuel filter.

Defective starter solenoid.

Open-circuit in wiring.

Engine is hard to start

Check glow plug fuse.

Engine is cold.

Plugged fuel filter.

Engine oil viscosity too heavy.

Cold start system not being used, or malfunctioning.

Dirty or Faulty Fuel Injectors.

Loose or corroded electrical connections.

Stale or improper fuel.

Blown fuse.

Engine misses under load

Stale or dirty fuel.

Plugged fuel filter.

Engine vapor locks

Fuel tank vent plugged.

Dirt in fuel filter.

Engine runs unevenly

Loose electrical connections.

Improper fuel.

Stale or dirty fuel.

Fuel line or fuel filter plugged.

Dirty or faulty fuel injectors.

Plugged air intake system.

Engine overheats

Air cleaner element missing or plugged.

Defective radiator cap.

Engine oil low.

Engine operated too long at slow engine speed.

Bleed cooling system.

Check cooling fan switch.

Check thermostat.

Check water pump.

Clean radiator screens.

Check coolant level.

Engine loses power

Engine overheating.

Too much oil in engine.

Fuel supply being restricted.

Fuel filter plugged.

Fuel line pinched or kinked.

Improper fuel.

Air cleaner element plugged.

Injection pump out of time.

Dirty or faulty fuel injectors.

Improper valve clearance.

Engine knocks

Low engine speed.

Stale fuel.

Engine overloaded.

Excessively early timing of fuel injection pump.


Electrical

IF

CHECK

Starter does not work

Loose or corroded connections.

Low battery output.

Sulfated or worn out battery.

Faulty starter.

Starter cranks slowly

Low battery output.

Sulfated or worn out battery.

Engine oil too heavy.

Loose or corroded connections.

Entire electrical system does not work

Blown fuse.

Loose or corroded connections.

Sulfated or worn out battery.

Dead battery

Shorted starter solenoid.

Key switch not turned to “OFF” position.

Component connected to accessory outlet left ON with engine off.

Turn signal and/or hazard lights left ON with engine off.

Sulfated or worn out battery.

Low engine speed or excessive idling.

Battery cables and terminals are dirty.

Dead cell in the battery.

Faulty charging system.

Current draw higher than charging system output. (If several attachments are added and used frequently at the same time with the standard charging system. Especially at low engine speeds.)

Correct indicator light(s) do not come on when checking instrument panel.

Faulty bulb.

Faulty wiring.

Faulty switch or sensor.

Battery will not take a charge

Dead cell in battery.

Loose or corroded connections.

Sulfated or worn out battery.

Electrolyte level low.

Low engine speed or excessive idling.

Faulty charging system.


Brakes

IF

CHECK

Brakes not working correctly

Brake fluid level low - check fluid level.

Air in brake system, system not bled properly.

Replace worn brake pads. (See your John Deere dealer.)