John Deere 323D Problems (Reasons and Solutions)

John Deere 323D is undoubtedly a great truck loader until you pay attention to the problem.

Recently many people have complained about different problems of this truck loader. If you own one or planning to purchase one then you should be aware of those problems.

Common John Deer 323D problems include the engine problems, such as engine stalling, not revving up, cranking on cold starts, and won’t start. Additionally, there are some significant hydraulic and control system electric problems, such as a locked parking brake and joystick not working.

John Deere 323D
Image Source: Aerohill

Now, let’s discuss the problems in detail and understand the reasons and solutions. 

John Deere 323D Engine Problems

Problems Reasons How to Fix?
The engine won’t rev up or start Clogged fuel filter, faulty fuel injector, or throttle cable Clean the fuel filter, replace the faulty fuel injector or throttle cable
Crank on cold start Low fuel pressure, faulty high-pressure fuel pump Replace the faulty fuel pump and fuel injectors.
Fuel filter choking Clogged fuel pickup tube Clean the fuel lines and change the filters if needed.
Engine stalling while running Faulty ignition coil or spark plug, lack of sufficient fuel Replace the faulty spark plugs or ignition coil, and add sufficient fuel.

Problem 1: Engine Won’t Rev Up/Won’t Start

In the list of engine problems, the most common problem is that the engine doesn’t start or rev up.

The main reason behind unresponsive engines is a clogged fuel filter, faulty fuel injector, or the engine throttle cable. Let’s see how to fix these issues.

How to Fix?

Let’s check out how to fix the engine won’t rev up/won’t start issue as follows:

  • First, inspect the fuel line, and check the fuel pump and the fuel filter for debris. If the fuel filter is blocked by dirt and impurities, it will block the normal fuel flow to the engine. As a result, the engine won’t get the required fuel amount to operate.
  • Secondly, check the fuel injectors that are responsible for injecting the fuel into the engine combustion chamber. if the fuel injectors are faulty, the engine can misfire and won’t start due to a lack of fuel to burn. Hence, replace the fuel injector with a new one.
  • Thirdly, check the engine throttle cable, which connects the gas pedal and the engine throttle plate mechanically. It’s possible that the throttle cable is faulty or damaged, resulting in the engine not starting. Hence, replace the cable accordingly.

Problem 2: Crank on Cold Start

Some users have shared this problem in the forums that the engine crank on cold start. It primarily happens if the fuel pump is faulty.

The high-pressure fuel pump song with the fuel injectors might fail to maintain the proper fuel flow into the engine. 

How to Fix?

You can troubleshoot the fuel pump in multiple ways. These are given below:

  • Check the fuel pump for electrical problems.
  • Check for faulty fuse and replace if necessary.
  • Perform a voltage drop test using a voltmeter.
  • Check the voltage pressure using a gauge.

Here’s a video on diagnosing a bad fuel pump in John Deere.

Secondly, check the fuel injectors whether they’re faulty or damaged. A faulty fuel pump means the engine won’t get enough fuel to burn and produce energy. So check and replace the fuel injectors with the help of a technician.

Problem 3: Fuel Filter Choking

Another crucial problem of John Deere 323D is the fuel filter choking. The fuel filter may get blocked by dirt or impurities over time.

Keeping the fuel filter clean is essential since it is one of the components that clean the fuel from all kinds of contamination.

How to Fix?

Clean the fuel filter by spraying solvent cleaner, dry it for at least an hour, then reinstall it. Then connect it to the battery and turn on the ignition.

See whether it’s working properly or not. If the problem persists, consider replacing the fuel pump.

Problem 4: Engine Stalling While Running

Another common problem of John Deere 323D is engine stalling. The primary reason for engine stalling is a faulty ignition coil or spark plug, insufficient fuel, and the lack of proper airflow.

How to Fix?

Check the engine’s ignition coil or spark plug and replace it if faulty. Next, check the fuel level and fill it up accordingly. Engines cannot start if they have insufficient fuel.

John Deere 323D Engine Stalling While Running
Image Source: Tractor Parts Asap

John Deere 323D Hydraulic Problems

Problems Reasons How to Fix?
The hydraulic motor is leaking fluid Problem with the seals or bearing, and low fluid pressure Replace the hydraulic seal and adjust the pressure
Excessive motor noise or vibration Worn-out hydraulic motor bearings Replace the worn-out motor bearings

Problem 1: Hydraulic Motor Leaking Fluid

Hydraulic motor fluid leak is serious that might damage the entire hydraulic motor if it’s not fixed as soon as possible. The hydraulic fluids may internally leak if the cylinder seals are broken, or the oil pressure is low.

How to Fix?

Replace the hydraulic cylinder seals. Diagnosing hydraulic leaks is a complicated process and needs technical knowledge.

You can hire a mechanic to detect and fix the leaks. Also, don’t forget to adjust the hydraulic oil pressure to ideal.

Problem 2: Excessive Motor Noise Or Vibration

Hydraulic motors have bearings, and if the internal bearings break, the motor will make unusual noises and vibrate. Unchanged bearings may damage the motor beyond repair.

How to Fix?

Once you hear unusual noises and vibrations, get the help of an expert to change the hydraulic bearings. Follow the user manual for the bearing type of 323D.

John Deere 323D Excessive Motor Noise Or Vibration
Image Source: Purple Wave

John Deere 323D Control System Problems

Problems Reasons How to Fix?
The joystick doesn’t respond Loose or disconnected actuator wires, a bad Cricut, or a battery drain Check the actuator connection and inspect the circuit and battery
Parking brake is locked Broken springs or faulty solenoids Replace the broken springs and faulty solenoids

Problem 1: Joystick Doesn’t Respond

If the joystick isn’t responding in your John Deere 323D properly, it means the actuator connection is loose, and maybe the circuit has gone bad. Another reason is the loader’s battery draining issue.

How to Fix?

Replace the actuator wirings if needed, or simply reconnect the connections to the steering and the loader.

Then check for bad circuits and replace worn-out parts if needed. Lastly, check whether the loader is draining the battery overnight.

Problem 2: Parking Brake Is Locked

There have been many complaints about this issue. The main reason behind this problem is either broken springs or faulty solenoids. If the parking brake gets locked due to broken springs, it may also degrade the wiring harness.

Secondly, having a faulty solenoid also means you will end up with a locked parking brake. The parking solenoid electrically controls the parking lock mechanism.

It automatically disengages the lock when active and engages the lock while inactive.

How to Fix?

Firstly, change the broken springs so the parking brake mechanism can function again.

If the solenoid is the culprit, it won’t release the lock unless it gets powered or replaced. Hence, replace the brake solenoids and power them up to disengage the lock.


How Much Can A John Deere 323d Lift?

Featuring a 69 HP turbo diesel engine and a strong operating capacity, John Deere’s 323D can carry up to 1042 kilograms or 2295 lb. With a tipping load of almost 3257kg or 7175 lb, the 323D can easily handle tougher loads.

Does John Deere Make a Good Skid Steer?

John Deere produces good skid steers that are considered reliable. They have skid steers that can handle heavier attachments and have plenty of horsepower. In addition to compact track loaders, John Deere also offers large and compact wheeled machines.

Is A John Deere 323D High Flow?

Yes, John Deere 323D  has a hydraulic high flow of 62 HP. High-flow skids move hydraulic fluid at rates of 30 to 45 GPM (gallons per minute) in ideal conditions. You can calculate this by multiplying the GPM by the PSI and dividing it by 1714.


Thank you for being patient till now; that was everything I could share regarding John Deere 323D problems. The problems are the most common ones and easily fixable. 

One last tip is to go through the service manual for easy troubleshooting of the problems. That’s all for today, good luck.

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