Home / Farm Tractors / John Deere Tractors / JD 3025E

John Deere 3025E Troubleshooting

The John Deere 3025E is a 4WD compact utility tractor from 3E series. This model was manufactured between 2017 and 2021. The John Deere 3025E powerline components: a 100.2 cu.in (1.6L) Yanmar 3TNV88F 4-cycle three-cylinder direct injection naturally aspirated liquid-cooled diesel engine with maximum power of 24.7 hp (18.4 kW), and 2-range hydrostatic transmission with infinite forward and reverse gears.

The engine has a high pressure common rail fuel system, forced lubrication with trochoid pump, and air cleaner with dual dry element. The maximum travel speed (forward and reverse): 14.1 mph (22.7 km/h) / 13 mph (21 km/h). The open center hydraulic system includes a dual gear pump with fluid flow rate of 5.3 gpm (20.2 lpm). The hydraulic pressure is 172 bar (2500 psi).

The John Deere 3025E is equipped with a power steering system, wet disc brakes, 7.00x14 (AG) or 27x8.50-15 (Turf) front tires, and 11.2x24 (AG) or 41x14.00-20 (Turf) rear tires. The wheelbase is 60" (1520 mm). The tractor is compatible with a John Deere 300E front-end loader with lift capacity to full height of 1186 lbs (537 kg) and breakout force of 1704 lbs (772 kg).

Engine Troubleshooting
Engine is not starting or hard starting
Fuel filter plugging - Service the filter
Fuel shut-off valve closed - Open the fuel shut-off valve
Fuel lines leaking air - Tighten clamps, change faulty pipes
Clogged or damaged injectors - Inspect fuel injectors and replace if necessary
Fuel injection pump malfunctioning - Change or repair the pump
Bad cylinder compression - Inspect cylinder block and change defective components
Engine stops during operation
Engine is cold - Warm up engine as required
Fuel-line is leaking air - Retighten clamps, replace defective pipes
Irregular fuel injection - Adjust fuel injection timing
Dirty fuel filter element - Change filter element
Clogged fuel injectors - Change fuel injectors
Engine starts but then shuts off
Timing of fuel injection pump is not adjusted - Check and correct adjustments
Fuel filter is dirty - Clean or change the filter
Clogged or defective injector nozzles - Replace fuel injector nozzles
Fuel injection pump is damaged - Repair or replace injection pump
Dirty air cleaner - Install new cleaner element or replace it
Engine shuts off while idling
Incorrect low idle setting - Correct the settings
Fuel injection pump is defective - Replace injection pump or repair it
Fuel injector nozzles are dirty or defective - Check and change nozzles as required
Excessive valve clearance - Adjust valve clearance
Engine overheated
Low coolant level - Fill the cooling system. Inspect the system for leaks
Cooling system is dirty or cooling parts are failed - Replace faulty parts or service cooling system
Engine oil level is insufficient - Check and refill engine oil
Worn fan belt or improper belt tension - Adjust belt tension properly or replace it
Thermostat malfunction - Check and change if necessary
Engine power is reduced
Dirty or faulty injectors - Change fuel injectors
Incorrect fuel injection pressure - Correct the pressure settings
Dirty air filter element - Change or service air filter element
Clogged oil filter element - Replace or clean engine oil filter element
Diesel engine is overloaded - Change to lower gear or reduce load
The valve clearance is incorrect - Have it adjusted
Wrong adjustment of low idle speed - Correct low idle adjustment
Fuel hoses or pipes are clogged - Clean fuel pipes and hoses
Poor engine compression: Leaking or faulty valves - Have valves replaced
Abnormal engine noise or knocking
Timing of fuel injection pump is wrong - Check and correct adjustments
Fuel injector nozzles are dirty - Install a new set of well-balanced nozzles
Engine oil level low - Fill up the engine oil
Engine is not fully warmed up - Normalize the temperature by warming up the engine
Main bearings or crankshaft are worn out - Change or repair worn components
Damaged or defective piston rings - Have piston rings replaced
Loose flywheel screws - Check the flywheel screws and tighten as required
High oil consumption
Oil leakage: Gaskets or seals are excessively worn - Replace defective parts
Crankcase oil too light - Use proper viscosity oil
Piston rings are seized or worn - Change piston rings
Valve stems or guides are damaged - Replace the valves
Pistons or cylinder liners are damaged - Check liners and pistons, install new components as required

Electrical System Troubleshooting
Battery is not charging
Battery bad cell - Battery change required
Bad battery cable harness - Inspect cables for malfunctions, repair or change
Loose or corroded terminals and cables - Clean or tighten terminals and cables
Worn belt or improperly adjusted belt tension - Adjust belt tension properly or change belt
Starter turns slowly
Battery power is low - Charge the battery
Battery discharges quickly - Service charging system or install new battery
Damaged battery wiring harness - Inspect wiring for damage, replace or repair
Loose or corroded battery cables and terminals - Tighten or service cables and terminals
Starter motor won't turn
Battery voltage is low - Recharge the battery
Discharged or worn battery - Charge or change the battery
Starter motor is faulty - Starter needs to be replaced
Cables harness is improperly connected or disconnected - Inspect cables harness and reconnect it properly

Hydrostatic Transmission Troubleshooting
Hydrostatic transmission makes noise
Transmission oil level is too low or oil is dirty - Top up to proper level or change oil
Damaged or not adjusted speed control rod linkage - Adjust or replace control rod linkage
Faulty relief valve - Install a new relief valve
Transmission overload - Load needs to be reduced
Transmission components are worn or damaged - Change or repair damaged parts
Transmission fluid overheated
Insufficient oil supply - Add transmission oil as required
Transmission oil filter clogging - Change or service the transmission oil filter
Damaged or clogged cooling components - Check all cooling components and clean or replace if required
Transmission is under excessive load - Reduce loading
Lack of power
Insufficient oil supply - Check transmission oil level and add oil as required
Low charge pressure - Test charge pressure
Worn or damaged relief valve - Replace valve as required
Transmission oil leaks
Worn gaskets or seals - Change defective seal or gaskets
High pressure inside the transmission case - Change or repair damaged parts
Plugged transmission fluid return tube - Inspect tube and service if required

Hydraulics Troubleshooting
Hydraulic system overheated
Incorrect hydraulic system pressure setting - Change the pressure settings
Main relief valve failure or incorrect setting - Adjust relief valve or change if required
Hydraulic oil contamination - Change the oil
Air trapped in the hydraulic system - Inspect the suction pipe, fittings, and pump seals
Hydraulic oil pressure is low
Not enough hydraulic oil in the system - Fill the hydraulic system with oil
Dirty hydraulic oil filter - Hydraulic filter maintenance required
Defective hydraulic pump - Test the pump flow rate and change pump if required
Defective or incorrect setting hydraulic control valve block - Change or adjust correctly
Defective hydraulic cylinder - Inspect cylinder parts for wear or damage and replace if required
Hydraulic piping leaks - Inspect hydraulic system for leaks and repair it
Three-point hitch lifting is too slow or cannot be lifted
Hydraulic oil level is low - Add oil to the hydraulic system
Cold oil in hydraulic system - Wait for oil to warm up
Hydraulic fluid filter is clogged - Replace filter element or clean if required
Defective hydraulic pump - Check the pump capacity and replace pump if required
Unadjusted or defective main relief valve - Set up or change the relief valve
Damaged or incorrect adjusted hydraulic spool valve - Adjust correctly or replace
Broken hydraulic cylinder - Inspect cylinder parts for wear or damage and replace if required
Broken or disconnected suction line - Connect or replace
3-point hitch lowers slowly or won't lower
Hydraulic spool valve block is not set properly or defective - Replace or adjust properly
Hydraulic cylinder malfunction - Check the cylinder components for damage or wear and change if necessary
Worn lift arm shaft - Install a new shaft
Internal mechanical malfunction with hitch - Replace faulty or worn hitch parts
Hitch jerks when drop or lift
Air leaks in hydraulic system - Check the pump seals, suction pipe, and fittings
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil
Hydraulic pump malfunction - Test pump performance and replace pump if necessary
Hydraulic control valve block is not set properly or defective - Adjust properly or replace
Broken hydraulic cylinder - Inspect the cylinder components for damage or wear and change if required

Steering System Troubleshooting
Steering wheel is difficult to turn
Steering column is broken or incorrectly fitted - Steering column needs to be refit correctly or replaced
Aeration in steering system - Bleed the system of air
Not adjusted toe-in - Check and adjust toe-in
Tires are improperly inflated - Inflate as necessary
Hydraulic steering pump is defective - Repair or change steering pump
Worn or damaged power steering control valve - Replace or repair steering valve as required
Relief valve malfunction or seizing - Service or replace the relief valve
Low steering fluid level - Fill the steering system with fluid
Steering system has oil leaks - Tighten the steering hose and pipe joints
Steering wheel has too much free-play
Worn steering column coupling or shaft - Change faulty component
Defective or worn power steering control valve - Repair or change the steering valve
Steering pump is worn - Check the steering pump and replace if necessary
Steering tie-rod ends or linkage are defective - Change failed component
Tractor pulls to right or left
Tires are not correctly inflated - Inflate tires as necessary
Improper toe-in adjustment - Adjust toe-in correctly
Worn or faulty steering tie-rod ends or linkage - Replace failed component
Faulty or worn power steering control valve - Change or repair steering valve if required
Damaged steering cylinder - Repair or change steering cylinder
Front hub bearings are incorrectly adjusted or worn - Change or adjust bearings correctly




Farm Tractors Technical Specifications
JD 1026R JD 3650 JD 6400 JD 7810
FORD 1320 FORD 2810 FORD 3930 FORD 5600
MF 250 MF 690 MF 3060 MF 6180
NH TC48DA NH M100 NH T7550 NH 8560
CASE IH 495 CASE IH 1255XL CASE IH 2140 CASE IH 2294