All Common John Deere 4455 Problems and Solutions (2023)

John Deere trucks are in high demand worldwide because of their reliability. Still, since it’s a vehicle, the users face several problems from time to time.

John Deere 4455 can have problems with the engine, like the engine not cranking, cranking but not starting, taking a long time to start, and overheating. Steering issues include steering not working, too easy or hard to turn. Other than that, the user may face issues with the PTO, steering, lights, and axles.   

We will be discussing all of the problems and how you can solve them on your own in the upcoming segments.

John Deere 4455 Engine Problems

Problems Reasons Solution
Engine won’t crank Incorrect fuel grade Refill the fuel tank with correct fuel.
Faulty fuel injection pump Replace the fuel injection pump.
The fuel injection pump timing is wrong. Adjust the timing.
Engine won’t start Battery doesn’t have a charge Replace or recharge the battery.
Starter motor is not working Replace the starter motor.
Clogged Fuel line or filter Clean the fuel lines or replace the fuel filter.
Starting the engine takes a long time Clogging in the fuel tank vent Replace the fuel tank vent.
Air leaks from intake hoses Repair or replace the air intake hose.
Clogging in the exhaust pipe Clear up the obstruction.
Engine overheating Little coolant in the cooling system Refill the coolant.
Radiator cores or side screens are dirty. Clean the radiator.

Problem 1: Engine Won’t Crank

A very common issue with your John Deere 4455 tractor engine is that sometimes it may not crank. This can happen for multiple reasons, all of which are fuel related.

Reason 1: Incorrect Fuel Grade

The first thing you need to check is if you are using the correct fuel for your tractor. John Deere tractors usually use diesel. 

But there are two grades of diesel, grade 1 and grade 2. Grade 1 diesel is normally used for cars and similar vehicles. On the other hand, grade 2 diesel is used for heavier machinery, such as trucks and tractors. 

That means the John Deere 4455 tractor uses grade 2 diesel as fuel.


Check what kind of fuel you have in your tractor; if it’s the wrong kind, refill with the correct fuel, which would be grade 2 diesel. 

Reason 2: Faulty Fuel Injection Pump

If you are confident that the right fuel is in the fuel tank, you might want to check the fuel injection pump. The fuel injection pump delivers fuel to the engine, and if that’s not working, it will not crank.


To check the fuel injection pump, you must locate it first. The fuel injection pump for a John Deere 4455 tractor is typically located on the left side of the engine, near the front of the tractor.

It is typically mounted on the front of the engine block, near the fuel tank and the fuel filter. Now that you have located the fuel injection pump, you need to check for certain symptoms:

  • Check for fuel leaks: Inspect the fuel injection pump and the fuel lines for any visible signs of leakage or damage. If you notice any leaks, it could be a sign that the fuel injection pump is faulty.
  • Check for fuel pressure at the fuel rail: For this, you will need a fuel pressure gauge and fuel pressure test adapter. Now, locate the fuel rail, it’s a metal pipe that should be on the front of the engine.

Use the fuel pressure test adapter to connect the fuel pressure gauge to the fuel rail. Then have someone turn the ignition on; if there is no pressure detected, then the fuel injection pump is not supplying the fuel.


If your fuel pump is not working, you will have to consult a mechanic, as replacing or repairing a fuel pump is complex. Without labor, a new fuel pump will set you back thousands of dollars. 

Or, if you want to do it yourself, this video will explain the whole process.

Reason 3: Fuel Injection Pump Timing Is Wrong

Fuel injection pump timing refers to the timing of fuel delivery in relation to the engine’s combustion cycle.

Incorrect timing means the fuel won’t be delivered to the fuel rail, which may contribute to the engine not cranking.


To check if the fuel injection pump is wrong, you will need a timing light tool. The timing light tool will allow you to visualize the ignition timing of the engine.

  • Attach the leads of the timing light tool to the spark plug wires. 
  • Aim the light at the timing marks on the crankshaft pulley. 
  • The timing light will flash when the spark plug fires, allowing you to determine the timing of the engine.
  • Check with the manufacturer’s recommended timing to know for sure if the timing is correct or not.


If the timing is not correct, you will have to adjust the timing. This video may help you adjust the timing:

Problem 2: Engine Won’t Start

Another common problem for the John Deere 4455 tractor is that the engine may not start. For this issue, usually, the battery, the starter motor, or the fuel pump drive gear is responsible.

Reason 1: Battery Doesn’t Have Enough Charge

The first reason that your John Deere tractor may not start is if there is a problem with the battery.


To diagnose the battery, you will need a multimeter first. Then follow the procedures described below:

  • Turn off the tractor first then open the hood to find the battery.
  • Connect the multimeter probes to the battery. Red probe should be connected to the positive terminal and black probe should be connected to the negative terminal.
  • Set the multimeter to measure voltage, the reading should say 12.6, meaning the battery is fully charged.
  • If the voltage is less than 11, then it has a low charge. If the voltage is zero, that means the battery is dead.


Recharge the battery with a charger if it has a low charge. Connect the charger to the battery terminals. Make sure the connection is tight. Turn the charger on and set the charging rate and time.

Or if the battery is dead, you will have to replace it with a new one.

Reason 2: Faulty Starter Motor

When the ignition key is turned, the starter motor is activated, which causes a small electric motor to spin. This spinning motion is used to turn the crankshaft of the engine, which in turn starts the engine. 

Without the starter motor, the engine will not start.

john deere 4455 Faulty Starter Motor
Source: Autoelectro


You can check if the starter motor is working or not by performing some simple tests. But first, you will need to locate the starter motor and take it out. For that, you can follow the process explained below.  

  • The first thing you need to do is to disconnect the negative terminal of the battery.
  • The starter motor should be on the left side of the tractor.
  • Once you have located it, you need to disconnect the wires that are connected to it.
  • The starter motor is attached to the tractor via bolts. Unscrew the bolts using a ratchet.

Now, to check your starter motor, you can follow the procedures shown in the video. 


If the starter motor is faulty, you will have to replace it with a new one by following the same process you used to take it out. 

A new starter motor should cost you around $200.

Reason 3: Restricted Fuel Lines or Fuel Filter

If the fuel line or the fuel filter is somehow clogged, enough fuel may not reach the engine to start it. This may result in the engine not starting.


  • The fuel line is typically located on the underside of the vehicle, near the fuel tank.
  • To access the fuel line, you will need to disconnect it from the fuel tank and the engine. The fuel line is typically secured to the fuel tank and the engine with a set of clamps. Use a wrench to loosen the clamps and disconnect the fuel line.
  • While you are at it, the fuel filter is also located on the fuel line. Disconnect the filter too.
  • Once the fuel line is disconnected, inspect it for any signs of blockages or damage. Look for kinks, cracks, or debris that could be obstructing the flow of fuel.
  • Inspect the fuel filter also for blockage.


You can clean the fuel line using a fuel system cleaner, then reconnect it. If the fuel filter is clogged, you must replace it using the same method as when you disconnected it.

Problem 3: Starting the Engine Takes a Long Time

It is likely that your John Deere 4455 engine is not getting enough fuel to start properly if it is taking a long time to start. That could be because of a clog in the fuel tank vent or the exhaust pipe.

Also, the air intake hoses might be leaking, or maybe the fuel injectors are not working well.

Reason 1: Clogged Fuel Tank Vent

The fuel tank vent is a small tube or pipe that allows air to enter the fuel tank as the fuel is used. This helps prevent a vacuum from forming inside the tank and allows the fuel to flow freely to the engine. 


If your John Deere tractor is having a hard time starting, you need to check the fuel tank vent first. 

  • Before checking up on the fuel tank vent you will have to drain all the fuel out. Open the fuel tank drain valve and collect the fuel in a container. Disconnect all the fuel lines too. 
  • The fuel tank vent is located on the top of the fuel tank.
  • Now, you will have to perform a vacuum test with a pressure tester on the fuel tank to check the operation of the vent.

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  • Seal the fuel line and connect the tester to the fuel tank. 
  • Set the tester to test the vacuum, and send pressure to the fuel tank. If the pressure holds that means the vent is not working. In the end, this creates a vacuum inside the tank, which causes the tank to lose its pressure.


If the fuel tank vent is not operating, you will have to replace it. 

  • Carefully pull the old fuel tank vent out of the fuel tank.
  • Clean the area around the fuel tank vent opening to ensure a good seal.
  • Install the new fuel tank vent by pushing it into the fuel tank opening.
  • Test the new fuel tank vent to ensure that it is functioning properly.

Reason 2: Leaks in the Air Intake Hose

A leak in the air intake hose can also cause the same problem in your John Deere tractor.


  • Locate the air intake hose. It goes from the air filter to the intake manifold.
  • Inspect the air intake hose for any visible signs of damage or wear, such as cracks, holes, or loose connections.
  • Check the connections of the air intake hose, like the air filter and the intake manifold, to ensure that they are secure and not leaking.
  • Try the soap-water test. Mix a small amount of dish soap in water and put the mixture in a spray bottle. Spray it all over the air intake hose and look if there are bubbles forming. If that happens, there is a leak.


If there is a small leak, you can use a repair kit to seal the leak. In the case of a severe leak, you may have to replace the intake hose.

Reason 3: A Blockage in the Exhaust Pipe

A blockage in the exhaust pipe may become troublesome if it is not cleared quickly.


  • The exhaust pipe on the rear side, under the vehicle.
  • Inspect the exhaust pipe for any visible signs of damage or blockages, such as dents, kinks, or debris.
  • Check the connections between the exhaust pipe and the other components of the exhaust system, such as the muffler and the exhaust stack, to ensure that they are secure and not leaking.
  • Try using a mirror to look inside the pipe and check for any obstructions.


If you find something that is obstructing the exhaust pipe, you will have to get it out right away. If you cannot do this by yourself, get expert help. 

Problem 4: Engine Overheating

The main reason for the John Deere 4455 tractor overheating is a low coolant level. Apart from that, a clogged radiator can cause the engine to overheat. 


First, you need to check the coolant level and refill it if there’s a lack of coolant. If the coolant level is low, refill the coolant with water in a 1:1 ratio.

If the coolant level is up to par, inspect the radiator. If the radiator is dirty, you will have to clean it. 

You can clean up the radiator using a radiator cleaner. Here is the process:

  • Apply the cleaner to the radiator coil’s front. 
  • Be sure to cover the coil completely. 
  • You will see foam with dirt coming out of the radiator coil after waiting 5 minutes. 
  • The foam should be vacuumed and repeated if necessary.

John Deere 4455 Steering Problems

Problem Reason Solution
Steering wheel turns around without resistance Tank low on hydraulic oil Refill the hydraulic oil.
Steering cylinder has damage Consult an expert.
Pump steering broke
Steering doesn’t function Air was formed in hydraulic system Open the hydraulic cap to release the trapped air.
Tank low on hydraulic oil Refill the hydraulic oil.
Steering cylinder has damage Consult an expert.
Steering wheel hard to turn Minimum oil level Refill the hydraulic oil.
Oil leaks out of the system Consult an expert.
The power steering pump broke.

Problem 1: No Resistance When Steering

If the steering wheel gets more sensitive and turns more easily than usual, it is difficult to maintain proper control over the tractor. 

If the tractor’s hydraulic oil level is low, you will face this problem. Opening the hydraulic tank will show you the hydraulic oil level. With a funnel, you can refill the oil in the tank if the level is low.

If that’s not the case, a steering cylinder may be leaking or the steering pump may have broken.

Reason 1: Steering Cylinder is Damaged

A damaged steering cylinder may be the root of this problem, so you might want to take a look at that.


Follow these steps to check the faulty steering cylinder:

  • Visibly check the hydraulic cylinder for damage
  • Start the engine on high idle. 
  • Turn the steering wheel all the way to the left.
  • Stop the tractor’s engine. 
  • Remove the hydraulic hose connection from the main cylinder. 
  • Repeat steps 1 to 3.
  • Check the cylinder for any leaks of oil.


If there is a leak or damage to the hydraulic cylinder, you need to consult an expert. Fixing such issues could be complicated and requires someone with expertise.

Reason 2: Pump Steering Broken

If the cylinder is okay, then it must be the pump steering that is faulty.


  • Inspect the pump steering for any visible signs of damage or wear, such as cracks, holes, or loose connections.
  • Check the pump steering for any leaks. This can be done by applying a soap and water solution to the pump and watching for bubbles to form, which would indicate a leak.


You should consult an expert if the pump steering leaks or is damaged. It could be difficult to fix such issues without the assistance of a professional.

Problem 2: Steering Wheel Hard To Turn

John Deere 4455 steering wheels are also notorious for being hard to turn. Sometimes the device may not move as properly as it should. This issue can cause squealing noises.

Problem 3: Steering Doesn’t Turn

This problem has the same causes and diagnosis as the previously mentioned problems. You only need to check the hydraulic system for trapped air to complete the diagnosis.

If there is air trapped in the system, all you need to do is open the hydraulic bleed valve. Doing this will let go of all the air trapped inside.

John Deere 4455 Other Problems

Problem Reason Solution
Front axle makes a lot of noise Gear failure Repair or replace the gear.
Ball bearings are very worn out Replace the ball bearings.
Crunch in the rear axle Damaged bearings Replace the bearings.
PTO not engaging Faulty PTO switch Replace the switch.
Connection problem at the wiring harness Reconnect or replace the wires.

Problem 1: Front Axle Makes Lot Of Noise

There are two possible reasons for this, either a gear failure or the ball bearings have worn out.

Reason 1: Gear Failure

If the front axle of your John Deere 4455 tractor is making noise because of gear failure, you will need to repair or replace the damaged gears as soon as possible. 

This is a fairly complex task, so unless you are confident in your skills, you should let someone skilled handle it.  


  • Disassemble the front axle to access the gears. This will likely involve removing the front wheels and other components to expose the gears.
  • Inspect the gears for any visible signs of damage or wear, such as cracks, chips, or excessive tooth wear.


Based on your inspections, if the damage is not much, you may be able to repair it. You should be able to fix them by filing down any rough edges or replacing any damaged teeth.

If the damage is too great, you must replace them.

Reason 2: Ball Bearings are Worn Out

If the gear seems good, the next thing you must check is the ball bearings. 


  • To access the ball bearings, you will need to disassemble the front axle.
  • To remove the old bearings, you will need to use a bearing puller.
  • Ensure that there are no signs of wear and tear or damage.


If the ball bearings are damaged or worn out, you must replace them. Before you do, you should clean the front axle. 

Problem 2: Crunch in the Rear Axle

A crunch in the rear axle usually happens because of damaged bearings.

Problem 3: PTO Won’t Engage

Often, the PTO on the John Deere 4455 fails to engage at all. Additionally, the PTO indicator light on the dash does not function. This problem is caused by a broken switch and a loose connection with the wiring harness.

john deere 4455 PTO Won’t Engage
Source: Mygenerator

Reason 1: PTO Switch Not Working

To diagnose the cause of the problem with the PTO switch, you may need to inspect the switch, connections, and wiring for any visible signs of damage or wear.


  • Put the emergency brake on the tractor before parking it. 
  • PTO switches can be found in the control panel on the right. If the mid-PTO is not engaging, check the mid-PTO switch, and if the rear PTO is not engaging, check the rear PTO switch. 
  • Disconnect the switch connection from the wiring harness.
  • To test the switch’s quality, take an Ohm meter and test it in both the on and off positions. If the switch is working properly, the on position should show continuity in the meter for A&C, D&F, and G&H, and the off position should show continuity for A&B and D&E. 


Have the faulty switch replaced. 

Reason 2: Loose Connection with the Wiring Harness

For this, you will have to check the connection from the PTO switches to the wiring harness. If that seems okay, then check the connection from the solenoid to the wiring harness.

Ensure that the connection is not loose, damaged, worn, or torn.


Reconnect if there are any loose connections. Replace the wiring if it’s damaged.

How to Take Care of Your John Deere 4455

Several important maintenance tasks should be performed regularly on a John Deere 4455 tractor to ensure that it is operating at its best. Some of the key maintenance items to consider include:

  • The oil and oil filter should be changed at regular intervals to keep the engine lubricated and running smoothly.
  • The air filter should be cleaned or replaced regularly to ensure that the engine is getting enough air for combustion.
  • The fuel filter should be changed at regular intervals to remove any contaminants that may be present in the fuel system.
  • The coolant should be changed at regular intervals to keep the engine running at the proper temperature.
  • The battery should be kept clean and charged, and the connections should be checked regularly to ensure that it is functioning properly.
  • The tires should be checked for proper inflation and wear, and the wheels should be inspected for any damage or looseness.


The John Deere 4455 is a reliable and durable tractor, but like any complex machine, it can experience problems from time to time. 

Some common John Deere 4455 problems lie within the engine, the fuel system, air intake, and exhaust. Aside from those, there could also be issues with the steering, front axle, and PTO switch. 

By performing regular maintenance and addressing any problems that arise as soon as possible, you can help keep your John Deere 4455 tractor running smoothly and efficiently.

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