8 Most Common John Deere 5065E Problems and How To Fix Them

The John Deere 5065E utility tractor debuted in 2008 and is immensely popular due to its resiliency.

This tractor is powered by a 3-cylinder, 65-horsepower diesel engine designed to provide excellent torque and power for various tasks. However, the JD 5065E may experience some problems during its use. The most common John Deere 5065E problems are starting issues, a problematic hydraulic system, PTO engagement issues, malfunctioning switches, bad injectors, overheating, and wiring issues.

Do you own a troublesome JD 5065E? Read on to learn more about the issues affecting this utility tractor and how to deal with them effectively.

Starting Problems

Defective batteries are the leading cause of starting failures in John Deere 5065E tractors. The power source may be dead, or its terminals have sulfate buildup, meaning it cannot transmit current. Other times the battery is entirely out of service and requires a replacement.

Apart from the battery, the starting problem may originate from the fuel system. Possible causes include an empty diesel tank, contaminated fuel, or a blocked fuel line. Other times you have a faulty starter, noticeable from clicking sounds when you turn the key, but the engine won’t turn over.


Start by inspecting the battery to determine its functionality. Check the terminals for corrosion, which you should clean with sandpaper. Test the battery with a multimeter and jumpstart it if the volt is too low. Replace the battery if it is too old to prevent a recurrence of the hard starts

Next, focus on eliminating John Deere 5065E fuel problems by ensuring you have adequate fuel. You need to flush the fuel line in case of a clog or if you’ve used contaminated diesel.

Also, focus on other system parts, such as the fuel filters and pump. Clean the filter and replace the broken components of this unit.

The wise solution for a damaged starter is a replacement. Bypassing the starter is a solution to consider, but it may fail, and it’s more of a temporary fix.

A Problematic Hydraulic System

Some John Deere 5065E problems originate from the hydraulic unit. Signs of this issue include difficulty in lifting loads and noisy operation.

You may also notice leaking fluid. The low fluid levels due to the leak affect this system’s function. Hydraulic system failure can result from insufficient fluid, broken components, and contamination. 

How To Fix:

You sort out John Deere 5065E hydraulic problems by inspecting the system immediately if you feel something is out of place. Most of the time, you must refill the hydraulic fluid, especially if the system becomes noisy.

Act fast against leaks by welding, though part replacement is more effective. A heated-up system is a probable indicator of air bubble contamination. You sort out this hiccup by bleeding the hydraulic line.

PTO Engagement Issues

The 5065E is compatible with various attachments, which boosts its versatility. This utility tractor has an independent rear PTO that transmits power to the implements, and occasionally, it may fail to engage. John Deere 5065E PTO problems result from:

  • Low transmission fluid
  •  A faulty clutch
  • Connection issues


You address a failing PTO by checking its connections. Ensure the transmission system is in excellent form by having adequate fluid and functional parts.

Have an experienced mechanic scan for John Deere 5065E clutch problems, as they can be hard to diagnose. Replacement is typically the go-to solution for bad clutches. The PTO’s connections should be intact for the best performance.

Malfunctioning Switches

The John Deere 5065E has several switches that initiate different functions. Once in a while, some switches may fail to work. The culprit can be dirt buildup, especially if the controls are hard to turn. The switches may also be out of order due to short-circuiting or damaged support components.


You deal with failing switches by cleaning dirt around them. You may have to detach the controllers for effective cleaning. Replace out-of-order switches and their assemblies with high-quality parts to avoid a recurrence of the hiccup.


Overheating is a common issue among JD 5065E tractors. It is a severe issue where your engine’s temperatures rise past the recommended levels, making it prone to secondary damage.

In many instances, cooling unit failure is responsible for overheating. You may have insufficient coolant, a dirty or damaged radiator, a faulty fan, or faulty hoses. 

Other times, you have insufficient engine oil or a blown gasket. Look out for signs like a sweet sickly scent, burning odors, excess steam production, and stalling. 


You should turn off the tractor promptly if you suspect the engine is heating up. The engine should cool before attending to it. Don’t pour water over the motor to hasten cooling, as you might damage its parts.

Clean the radiator fins and straighten them up if bent using a screwdriver or a similar handy tool. Also, add coolant if the levels are low. Fix the fan and other damaged parts of the cooling system.

You must regularly change the oil and replace a damaged gasket. Consult a professional if the complication persists despite the attention.

Wiring Issues

Some John Deere 5065E problems originate from the wiring unit, especially sensor and indicator malfunctions. Over time, the electrical unit wears, and some parts become loose or damaged, mostly the wires. 


You should test the failing electrical parts with a multimeter to check for their voltage. Change the parts that are no longer working. Fix loose wires and broken connections to restore the functionality of the affected parts.

Engine Stalling

A stalling engine is a frustrating snag that will affect your workflow. The fuel system is the most probable genesis of this trouble. Your JD 5065E will stall due to the following:

  • Inadequate fuel
  • Dirty or substandard diesel
  • A blocked fuel cap vent
  • Overheated engine
  • A clogged fuel line
  • Blocked air vents
  • A defective fuel pump
  • A faulty fuel shut-off solenoid

Additionally, the tractor might stop when driving uphill. Let us look at the solutions to stalling issues in John Deere 5065E tractors.


As hinted earlier, there is a high chance the fuel system is to blame for stalling. Start by checking your fuel levels, and fill the tank if low. Be keen on fuel quality. Always go for John Deere-recommended brands. Avoid cheap diesel as it can damage the engine.

A fuel line flush is the best remedy for contaminated or low-quality diesel use. It may also help with a clogged line, though vacuuming can do an excellent job. A blocked fuel cap causes vapor lock, and pumping fuel becomes daunting.  

Sometimes, the culprit is the pump, especially if the tractor stops when going uphill. In this scenario, the pump cannot pump fuel due to the overwhelming driving conditions. Have a pro diagnose what is ailing it. Change the pump if you cannot repair it.

You must inspect the air vent and air filter. Blocked air vents and dirty air filters affect the engine’s air supply. Cleaning will unclog them, though you may need to replace the filters. 

Bad Injectors

The John Deere 5065E injectors fail primarily due to blocked nozzles. Dirt and gunk can clog the injectors, cutting the engine’s fuel supply. Signs of bad injectors are:

  • Stalling 
  • Bad fuel economy
  • Misfiring
  • Rough idling
  • Hard starts

How To Fix:

You avoid injector blockage by using top-grade fuel. Contaminated diesel is a leading cause of this problem. You can also use diesel injector cleaners to eliminate the gunk. 

Are John Deere 5065E Problems Deal Breakers?

The mentioned John Deere 5065E issues aren’t necessarily deal breakers. Most of these problems are commonplace among utility tractors and should not sway you from this model’s excellence. You can avoid these setbacks by properly maintaining the tractor and using high-quality products, particularly fuel.