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John Deere 1025R, 1023E Troubleshooting

John Deere 1025R, 1023E Engine Problems

Engine Will Not Start Or Is Hard To Start

Transmission gearshift lever is not in neutral position - Place range shift lever to Neutral. Engine throttle lever not pushed forward - Move throttle to half throttle. Fuel shutoff valve CLOSED (OFF) - Open fuel shutoff valve at the water separator. Stale fuel/improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Wrong engine oil viscosity - Change engine oil and fill with correct viscosity oil for conditions. Cold start system not being used, or malfunctioning - Verify that cold start system is utilized during required temperatures. Plugged fuel filter - Replace fuel filter. Plugged air intake filter - Clean or replace air filter elements. Dirty or faulty fuel injectors - Clear or Replace. Blown fuse - Check and replace and faulty fuses.

JD 1025R, 1023E Engine Runs Rough Or Stalls

Fuel shutoff valve partially closed - Open fuel shutoff valve at the water separator. Plugged fuel filter - Replace fuel filter. Plugged air intake system - Clean or replace air filter elements. Stale or improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Dirty or faulty fuel injectors - Clear or Replace. Low coolant temperature - Service
required. Fuel pump not functioning properly - Check fuel pump and repair if necessary

John Deere 1025R, 1023E Engine Overheats

Dirt or debris accumulation on hood screen or radiator fins - Clean debris and dirt from the front screen and radiator fins. Coolant level is below specification - Add coolant as specified. Leak in the coolant system - Check for leaks and repair. Improperly adjusted or broken fan belt - Tighten or replace fan belt. Cooling system needs flushing - Flush the fuel system. Defective radiator cap - Replace radiator cap. Defective thermostat - Replace it. Defective water temperature indicator or sensor - Replace indicator or sensor. Loose or defective alternator belt - Tighten or replace belt. Engine speed too low for load. Do not operate at low idle - Raise engine speed to match load requirements. Operating at too fast ground speed for conditions - Reduce speed to match operating conditions.

JD 1025R, 1023E Engine Knocks

Fuel shutoff valve partially closed - Open fuel shutoff valve at the water separator. Plugged fuel filter - Replace fuel filter. Plugged air intake system - Clean or replace air filter elements. Stale or improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Dirty or faulty fuel injectors - Clean and adjust as required. Low coolant temperature - Service required. Fuel pump not functioning properly - Change Fuel pump.

Low Oil Pressure

Engine oil level low - Add oil to specification. Plugged engine oil filter - Replace oil filter. Improper type of engine oil - Verify correct engine oil. Drain system and fill with the correct oil type. Oil leaks - Check for leaks and repair.

JD 1025R, 1023E Engine Uses Too Much Oil

Oil leaks - Check for leaks and repair. Improper type of engine oil - Verify correct engine oil. Drain system and fill with the correct oil type.

Engine Emits White Smoke

Stale or improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Internal coolant leak - Repair internal coolant leak

Engine Emits Black or Gray Exhaust Smoke

Stale or improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Dirty or faulty fuel injectors - Clean or Replace. Fuel pump not functioning properly - Repair.

High Fuel Consumption

Stale or improper fuel/fuel level - Drain stale or improper fuel and fill to capacity. Failed fuel solenoid - Replace. Operating at too fast ground speed for conditions - Reduce speed to match operating conditions. Improper valve clearance - Adjust valve clearance. Plugged air intake system - Clean or replace air filter elements.

John Deere 1025R, 1023E Hydraulic Problems

Operation Sluggish, Slow

Water in hydraulic oil - Replace hydraulic oil with correct oil type. Plugged hydraulic oil filter - Replace oil filter. Improper type of hydraulic oil - Verify correct hydraulic oil. Drain system and fill with correct oil type. Oil leaks - Check for leaks and repair.

Poor Hydraulic Performance

Water in hydraulic oil - Replace hydraulic oil with correct oil type. Plugged hydraulic oil filter - Replace oil filter. Improper type of hydraulic oil - Verify correct hydraulic oil. Drain system and fill with correct oil type. Oil leaks - Check for leaks and repair.

John Deere 1025R, 1023E Transmission and Hitch Problems

Machine Will Not Move With Engine Running

Transmission oil level low - Fill hydraulic oil with correct oil type as specified. Transmission oil cold - Allow engine to warm before operating. Transmission range shift lever in neutral position - Place range transmission lever in high or low range.

3-point Hitch Lift/Drop Problems

Transmission oil level low - Fill hydraulic oil with correct oil type to specification. Transmission oil cold - Allow engine to warm before operating. Rate-of-drop valve closed - Open rate-of-drop valve to desired setting. Excessive load on hitch - Reduce load on hitch. Plugged hydraulic oil filter - Replace oil filter. Worn hydraulic pump - Replace hydraulic pump.

John Deere 1025R, 1023E Steering And Brakes Troubleshooting

Steering Not Working

Improper tire inflation - Inflate tires to proper specification. Hydraulic oil level low - Fill hydraulic oil with correct oil type as specified. Hydraulic oil cold - Allow engine to warm before operating. Plugged hydraulic oil filter - Replace hydraulic oil filter. Excessive play in steering - Check and Repair. Worn hydraulic pump or steering gear - Replace worn parts.

Rear Brakes Not Working

Brakes out of adjustment - Adjust brakes to specification. Worn or damaged brake linkage or brake disks - Replace. Park brake engaged - Release park brake.

John Deere 1025R, 1023E Electrical System Troubleshooting

Battery Will Not Charge

Poor electrical connection at alternator - Check for proper electrical connections at alternator. Loose or corroded connections - Clean connections at alternator and battery terminals. Check for a blown fuse - Check starting circuit fuses and replace if necessary. Loose or defective alternator belt - Tighten or replace belt. Defective battery - Replace battery. Defective alternator - Replace alternator.

Battery Discharge Indicator Stays On With Engine Running

Poor electrical connection at alternator - Check for proper electrical connections at alternator. Loose or corroded connections - Clean connections at alternator and battery terminals. Loose or defective alternator belt - Tighten or replace belt. Defective battery - Replace battery.

Starter Will Not Work

Poor electrical connection at battery or starter motor - Check for proper electrical connections. Loose or corroded connections - Clean connections at alternator and battery terminals. Low battery charge - Charge battery to proper specification. Defective starter motor - Replace starter motor. Check for a blown fuse - Check starting circuit fuses and replace if necessary. Neutral start switch faulty or not adjusted properly - Adjust or Repair. Range transmission lever not in neutral position - Place range transmission lever in neutral.

Starter Turns Slowly

Loose or corroded connections - Clean connections at alternator and battery terminals. Low battery charge - Charge battery to proper specification. Defective battery - Replace battery. Defective starter motor - Replace starter motor.

Light Circuit Not Working

Defective bulb - Check and replace faulty bulbs. Check for a blown fuse - Check light circuit fuses and replace if necessary.