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John Deere 3140 - Common problems and repairs

The day before I found out some issue with my John Deere 3140. Diesel doesn't crank over. Tell me what is the probable failure?

You must use the recommended fuel grade. High-pressure fuel pump is damaged. Diagnose and change. Timing of fuel injection pump is incorrect. Adjustment required.

Please give me information why steering wheel turns without resistance? What are my actions to troubleshoot?

Minimum Oil Rating - Pour full. This is a steering cylinder malfunction - Replace the defective part. Pump steering broke - Check the steering pump.

I got a JD 3140 in march. Presently there is problem. Motor not starting. Can anybody help me identify the source of breakdown?

Starter failure - Need a replacement or overhaul. Fuel line is clogged up - Wash and clean the fuel line. The fuel filter element is dirty - Replace fuel filter. Piston rings are damaged - Must be repaired.

I have the same model. Recently I noticed steering wheel operate tight. Explain to me what is problem?

Minimum Oil Rating. Top up the oil. Leak in hydraulic connections. Eliminate the problem. Steering pump is defective. Check the steering pump. Hydraulic power steering is defective. Diagnose the power steering.

JD 3140 tractor problem. Engine starts hard. Help me determine main cause of damage. What should I check?

Restriction in air filter/cleaner or induction system. Incorrect functions of the cold start system. Broken or Worn Piston Rings. Valve Leakage/Adjustment Bad. Water in fuel. Fuel too heavy at low temperature.

John Deere 3140 engine malfunctions. Diesel hard starting permanently. How can i fix malfunction?

Restricted Fuel Lines. Air in fuel system. Clogging in exhaust pipe. Low voltage - Charge battery. Dirty or faulty injectors. Clogged fuel filter. Clean or replace fuel filter. Fuel shut-off valve closed. Open fuel shut-off valve.

Steering does not work on my tractor. How can I fix it?

The hydraulic system has air. We recommend you draw out air. Small level of hydraulic oil in system. It is required to add oil. Steering cylinder has problems Make a replacement.

Having used the exact same tractor. Why diesel engine failure to start? How can i resolve an issue?

Valve timing is improper - Set a valve timing. Low compression. Cylinder bores are worn - Need overhaul. Leakage between valves and seats - Remove leaks.

3140 issues. This is a diesel knock. what could be the trouble?

This is a small residue of engine oil. Fill up. Coolant temperature dropped.

I can't find the reason why front axle to howls chronically at the moment of motion?

Defective gear. It is recommended to replace the gear. ball bearings are very worn out. Replace it.

I have this model about 4 years. Sometimes motor start is intermittent. What a breakdown?

Nozzle has dirt. You must checking injector. High-pressure fuel pump has a malfunction. Repair high-pressure fuel pump.

I bought the exact same tractor. Tell me why locking differential broke down suddenly? How can I fix it? What should I do?

Diaphragm worn out or wear of discs friction clutch. You have to make repairs.

Our company has 3140 tractor. Diesel engine not starting. Tell me How can I eliminate a breakdown?

We can assume fuel filter element has dirt. Or injection pump adjustment is not correct.

Need help. Engine constantly overheats. How to fix the problem?

Coolant level lowered. Pour liquid into radiator to recommended level. Dirty radiator core, or grille screens. Remove all trash. Excessive load - Reduce load or speed. Broken or misadjusted fan belt - Adjust or replace.

My friend has JD 3140. Day before yesterday he diagnosed a crunch in the rear axle. What's wrong?

These symptoms evidence of defect in the axle reducer.

Tell me what damage if motor excessive white smoke at idle?

If white gas comes from the exhaust pipe you need to carry out replacement of piston rings immediately.