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Engine hard to start, will not start.
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Safety switches not activated.
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See your John Deere dealer.
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Fuel tank empty.
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Add fuel.
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Low compression.
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See your John Deere dealer.
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Low battery output.
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Check electrolyte level and specific gravity of conventional battery. Recharge if necessary.
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Excessive resistance in starting circuit.
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Clean and tighten all connections on battery and starter.
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Crankcase oil of too heavy viscosity.
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Drain and fill crankcase with oil of proper viscosity and quality.
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Use of gasoline instead of diesel fuel or improper type, or old fuel.
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Drain and fill with proper type of fuel for operating conditions.
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Sticking valves.
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See your John Deere dealer.
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Water, dirt, or air in fuel system.
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Drain, flush, fill and bleed fuel system.
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Throttle linkage loose or not adjusted properly.
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Check throttle linkage and adjust if necessary.
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Throttle position.
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1/3 forward.
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Dirty or faulty injectors.
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See your John Deere dealer.
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Plugged fuel filters.
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Replace filters.
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| Symptom |
Problem |
Solution |
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Engine knocks.
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Low coolant temperature.
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Incorrect or defective thermostats.
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Loose or failed main bearing or connecting rod bearing, worn pistons and cylinders.
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See your John Deere dealer.
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Insufficient oil.
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Add oil of proper viscosity and quality.
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Clogged air intake.
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Clean air intake.
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Injection pump out of time.
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See your John Deere dealer.
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Injection nozzle valve sticking.
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See your John Deere dealer.
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Air in fuel system.
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Bleed fuel system.
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Engine runs irregularly or stalls frequently.
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Low coolant temperature.
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Operate engine until sufficiently warm. Also check thermostats.
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Clogged fuel filters or strainers.
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Replace filters elements and bleed system. Clean strainers.
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Bent push rods or sticky valves.
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See your John Deere dealer.
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Water, dirt, or air in fuel system.
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Drain, flush, fill, and bleed system. Clean strainers.
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Injection pump out of time.
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See your John Deere dealer.
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Dirty or faulty injectors.
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See your John Deere dealer.
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| Symptom |
Problem |
Solution |
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Lack of power.
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Engine overloaded.
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Reduce ground speed.
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Intake air restrictions.
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Clean air cleaner.
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Improper thermostat.
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Change to proper thermostat.
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Improper valve clearance.
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See your John Deere dealer.
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Fuel filters plugged.
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Replace fuel filters.
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Unsatisfactory fuel.
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Use fresh fuel of proper type.
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Overheated engine.
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See "Engine Overheats" in this section.
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Throttle creeps rearward.
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Tighten pivot bolt in console.
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Lost rotation in hydro lever linkage.
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Tighten pivots and check for binding.
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Plugged or restricted fuel vent.
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Check and clean fuel tank cap vent.
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Dirty or faulty injectors.
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See your John Deere dealer.
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Injection pump out of time.
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See your John Deere dealer.
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Turbocharger not functioning.
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See your John Deere dealer.
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| Symptom |
Problem |
Solution |
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Engine overheats.
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Engine overloaded.
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Reduce ground speed.
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Low coolant level.
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Fill radiator with coolant to the proper level. Check hoses and radiator for leaks or loose connections.
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Faulty radiator cap.
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Have service technician check.
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Leaking head gasket.
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See your John Deere dealer.
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Engine timed too late.
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See your John Deere dealer.
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Dirty side screens.
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Clean screens.
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Dirty cooling system core(s) (radiator, hydrostatic oil, air conditioner condenser) or screens.
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Remove all foreign matter from exterior of core(s) and screens. Steam clean periodically. Check screen seals.
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Defective thermostats.
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Remove and check.
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Defective fan belt.
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Replace worn belt.
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Wrong oil viscosity.
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Change to proper oil viscosity.
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Cooling system limed up.
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Flush and fill radiator.
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Operating with water only.
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Fill with proper coolant.
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Engine temperature below normal.
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Defective thermostats, gauge or sender unit.
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Remove and check.
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Low oil pressure.
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Low oil level.
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Check crankcase oil level on dipstick and add oil if necessary.
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Improper type of oil.
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Drain and fill crankcase with oil of proper viscosity and quality.
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| Symptom |
Problem |
Solution |
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Engine uses too much oil.
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Oil leaks or engine overheating.
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Check for leaks in lines around gaskets and drain plugs.
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Too low viscosity crankcase oil.
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Drain and fill crankcase with oil of proper viscosity and quality.
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Excessive engine speed.
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See your John Deere dealer.
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High oil pressure.
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See your John Deere dealer.
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Restricted air intake system.
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Check air cleaner and clean out air intake.
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Crankcase vent hose plugged.
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Find and remove obstruction.
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Engine uses too much fuel.
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Improper type of fuel.
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Use proper type fuel for operating conditions.
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Engine out of time.
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See your John Deere dealer.
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Clogged or dirty air cleaner.
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Clean air cleaner.
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Engine overloaded.
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Reduce load or reduce ground speed.
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Dirty or faulty injectors.
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See your John Deere dealer.
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Engine emits black or gray exhaust smoke.
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Improper type fuel.
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Use proper type of fuel for operating conditions.
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Engine out of time.
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See your John Deere dealer.
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Clogged or dirty air cleaner.
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Check air cleaner for restrictions. Be sure filter element is clean.
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Engine overloaded.
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Reduce ground speed.
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Defective muffler.
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Check the muffler for possible damage which might create backpressure.
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Dirty or faulty injectors.
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See your John Deere dealer.
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Air in fuel system.
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Bleed fuel system. Check all connections and fuel tank level.
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| Symptom |
Problem |
Solution |
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Engine emits white exhaust smoke.
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Cold engine.
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Warm engine to normal operating temperatures.
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Engine out of time.
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See your John Deere dealer.
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Improper type of fuel.
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Use fuel which has recommended cetane number.
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Thermostats defective or too cold or wrong temperature rating.
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Remove and check thermostat.
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Battery will not accept charge.
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Defective battery.
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Replace battery.
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Loose alternator belts.
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Adjust or replace.
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Loose or corroded connections.
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Clean and tighten battery connections.
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Alternator or voltage regulator not functioning properly.
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See your John Deere dealer.
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Starter cranks slowly or will not crank.
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Low battery output.
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See your John Deere dealer.
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Safety switch not activated.
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Position hydro lever in neutral.
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Loose or corroded harness or battery connections.
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Clean and tighten loose connections.
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Starter solenoid defective.
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Repair or replace.
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Cold weather.
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See COLD WEATHER OPERATION in OPERATING THE MACHINE section.
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