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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

Check to make sure vehicle is in neutral position and/or function of neutral switch.

Battery has low voltage.

Loose or corroded battery connections.

Blown fuse(s).

Spark plug wire(s) is loose or disconnected.

Faulty spark plug(s) or coil.

No fuel or improper fuel.

Plugged fuel filter.

Defective starter solenoid.

Open-circuit in wiring.

Engine is hard to start

Engine is cold.

Plugged fuel filter.

Engine oil viscosity too heavy.

Spark plug(s) is fouled.

Faulty spark plug(s) or wire(s).

Loose or corroded electrical connections.

Stale or improper fuel.

Choke not being used or adjusted incorrectly.

Engine misses under load

Stale or dirty fuel.

Plugged fuel filter.

Faulty coil or wire.

Faulty spark plug(s).

Engine vapor locks

Poor quality fuel or methanol.

Very hot weather conditions and very high loading condition.

Fuel tank vent plugged.

Dirt in fuel filter.

Engine runs unevenly

Loose electrical connections.

Choke or throttle cable sticking.

Fuel line or fuel filter plugged.

Stale or dirty fuel.

Improper fuel.

Air cleaner element plugged.

Air intake restrictor plugged or missing.

Spark plug(s) is fouled.

Engine overheats

Air cleaner element missing or plugged.

Carburetor air intake tube plugged.

Engine oil low.

Engine operated too long at slow engine speed.

Engine loses power

Engine overheating.

Too much oil in engine.

Faulty spark plug(s).

Fuel supply being restricted.

Fuel filter plugged

Fuel line pinched or kinked.

Improper fuel.

Air cleaner element plugged.

Engine knocks

Low engine speed.

Stale or low octane fuel.

Engine overloaded.


Electrical

IF

CHECK

Starter does not work

Check to make sure vehicle is in neutral position and/or function of neutral switch.

Loose or corroded connections.

Blown fuse.

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.

Blown fusible link.

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.

Blown fuse.

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.

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. (See your John Deere dealer.)

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

Park brake not working correctly

Parking brake not adjusted correctly (See your John Deere dealer.)