John Deere 6059 Troubleshooting
| Engine Model: John Deere 6059 |
| Engine Type: 4-cycle inline 6-cylinder naturally aspirated liquid-cooled diesel |
| Total Displacement: 359 cu.in (5.9 L) |
| Rated Engine Power: 120 Hp (90 kW) at 2200 rpm |
| Fuel System Type: Direct fuel injection |
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| Engine difficult to start or doesn't start |
Fuel filter plugged - Install new filter element.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles are damaged or dirty - Inspect nozzles and replace if necessary.
Faulty fuel injection pump - Replacement or repair required.
Unadjusted valve timing - Correct or change timing gear.
Dirt in the fuel lines or hoses - Clean or change fuel pipes.
Unadjusted injection timing - Adjust as recommended.
Piston rings and cylinder are worn - Replace faulty components.
Dirty fuel filter - Clean or change the filter.
Faulty fuel injection pump - Repair or replace injection pump.
Air filter is clogged - Clean or replace element.
Nozzle opening pressure is improper - Adjust as recommended.
| Engine stalls while running |
Improper setting of fuel injection pump timing - Adjust as recommended.
Dirty fuel filter - Clean or change the filter.
Engine has not warmed up to the recommended temperature - Warm up the engine.
Stuck or burnt injection nozzle - Repair or replace injection nozzles.
| Engine shuts off while idling |
Incorrectly adjusted low idle speed - Adjustment required.
The valve clearance is not adjusted - Correct valve clearance.
Fuel injection pump damage - Replace or rebuild injection pump.
Fuel injection nozzles are dirty or defective - Change fuel injection nozzles.
Clogged fuel lines or hoses - Clean fuel hoses and lines.
Air filter is dirty - Service air cleaner.
Cylinder head gasket defective - Replace cylinder head gasket.
Incorrect injection timing - Set up as recommended.
Faulty fuel injection pump - Repair or change injection pump.
One of moving engine components is worn - Replace or repair damaged components.
Damaged radiator cap or dirty radiator core - Clean radiator or install new cap.
Lack of engine coolant - Fill the cooling system and check components for leaks or other faults.
Fan belt is broken or worn - Fan belt must be replaced.
Low engine oil level - Checking oil level and add if necessary.
Cylinder-head gasket is leaking - Change cylinder head gasket.
Improper injection timing - Adjust as recommended.
Oil level is low - Add oil as required.
Oil pump is worn or damaged - Repair or replace.
Oil filter element is dirty - Clean or change engine oil filter.
Relief valve is seized or worn - Relief valve need to be replaced or cleaned.
Crankshaft bearing clearance is excessive - Test and repair or replace worn parts.
Excessive crankpin bearing clearance - Test and replace or repair worn components.
| Engine oil consumption is too high |
Oil leaking: Worn gaskets or seals - Worn parts need to be replaced.
Wrong oil viscosity - Use oil of proper viscosity.
Piston rings are seized or worn - Piston rings need to be replaced.
Damaged valve stems or valve guides - Replace the valves.
Scuffed pistons or cylinder liners - Inspect liners and pistons, replace as necessary.
Engine not warmed up - Warm up the engine.
Engine oil level is low - Add oil to the engine crankcase.
Timing of fuel injection pump is incorrect - Adjust fuel injection pump as required.
Pistons are worn or scored - Replace the pistons.
Misaligned or defective connecting rod - Replace or align connecting rod.
Battery capacity is low - Charge the battery.
Battery does not hold charge - Service charging system or replace battery.
Disconnected wires or corroded battery terminals - Check cables and clean or change terminals.
Battery is low or faulty - Change or recharge battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Low battery power - Recharge the battery.
Damaged starter motor - Repair or change starter.
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