7 Most Common John Deere 333G Problems & Troubleshooting

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By Marvin Tucker

Farming Equipment

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John Deere 333G is commonplace in the landscaping and construction industry, and many businesses and individuals rely on them daily. 

You should take good care of them because you know how useful they are if you use them. You may minimize lost productivity and expensive repairs by keeping an eye out for a few key warning indications of trouble with your deere 333g. 

By watching these symptoms, you’ll know what to look for during inspections and how to better care for your deere 333g.

Please read this article to learn about the most frequent issues with John Deere 333G and the best ways to fix them.

The Most Common Problems with John Deere 333G

John Deere 333G, like any other piece of heavy machinery, will require servicing at some point. Maintaining peak performance from your Deere 333G necessitates careful monitoring of the vehicle’s power plant, hydraulics, and electronics

The most frequent issues with the John Deere 333G that fit into these categories are listed below, along with some suggestions for troubleshooting them:

1. Engine Issues

You should check the fuel system when an engine won’t start because some of the most frequent problems begin there. Typically, a John Deere 333G fuel system contains fuel filters, fuel lines, and a tank, each requiring distinct checkups

If your John Deere 333G uses diesel fuel, problems can arise if you don’t change the filters as often as the manufacturer recommends. Filters need to be changed more regularly in dusty settings to avoid engine failures.

Diesel fuel filters are checked and moved on to the tank itself. The engine’s performance can suffer if fuel cannot reach the fuel injector from the tank. It’s essential to check that the fuel injectors are clear of debris, as they are often to blame for poor fuel flow.

Problems with the engine’s glow plugs are also somewhat prevalent. Since glow plugs help warm the engine’s combustion chambers in a chilly environment, they make it possible for the entire machine to perform as intended. 

These glow plugs occasionally break loose, which prevents them from warming the engine. Check to ensure these plugs are firmly connected after finding them on both sides of the machine.

Finally, check that the engine’s throttle cable is secured to the body. Untightened wires might prevent the engine from starting or functioning properly on rare occasions. Inspecting the cord from both ends is the best way to determine its safety. 

The cables need to be connected to the throttle body, often found at the upper front of the motor and the accelerator.

2. Hydraulic Issues

The early models of John Deere’s deere 333G trucks experienced a terrible hydraulic problem. Everything exploded due to extreme pressure. Furthermore, the bucket’s tilting controls would frequently malfunction. The hydraulic system will fill up regardless of how you pedal.

The loader’s apparent inability to rise is another problem. There is also a chance that it will freeze and become immobile. It is also usual to see the ‘Hydraulic Restriction’ indicator light blinking.

In-seat or in-bar sensors could also be at fault. In addition, John Deere’s hydraulics won’t work if the hydraulic pressure sensors fail; this is a widespread issue.

Toss out the sensors and get new ones. Clean the fuel filter by removing it from the gas tank. In addition, you can switch out the hydraulic fuel and guarantee it is of high quality by filling it up.

3. Control System Issues

From time to time, John Deere 333G operators may discover that the loader and steering joysticks are unresponsive. Connecting or tightening connections at the steering wheel or loader may be necessary if you have such problems. 

As a safety precaution, you may also wish to double-check the wiring that leads from the joystick to the actuators and hydraulic pump. If you’ve tried everything else and the joystick control circuit board is still not working, you might need to replace the entire device.

When the controls react very slowly, there may be problems with the control system. Examining the John Deere 333G safety switches is just as crucial as double-checking the connections mentioned above. 

The control system will have ripple effects if these safety switches fail. Each connection in these switches should be tight, and they should be working correctly. 

Inspecting the battery for any discharge is essential because faulty circuits might damage your control system.

4. Parking Brake

In addition to a slew of electrical issues, the parking brake adds an extra layer of complexity. When the springs break, it can cause the lock to jam, and it can also shorten the electrical harness.

The machine is useless unless the solenoids are disabled

Its gear can also dismantle the skid loader and the brake rotor. Some people have reported that the seat belt lights remained “on” after they released the parking brake.

Take out the safety belt and seat. Locate a broken spring on the brake system that is between 1 and 1/2 inches in length. The brake won’t fully release or disengage if the spring is broken.

If the solenoids, seat switches, or seat belt switches are broken, consider replacing them. The wiring harness may also require replacement.

5. Fuel Filter Choking

When the fuel filter became cloggedthe machine would start up but then die. It’s possible (but not guaranteed) that you’ll notice issues with the gasoline lines and filter. However, algae or other material in the tank could jam the fuel collecting tube and reduce fuel flow if installed.

There’s a chance the throttle won’t work at all. The engine’s maximum RPM is reached after a seemingly endless length of time after it is turned on. Warming the engine by running it at low RPM could slow it down. You may never get up to top speed.

You should bring out the fuel nozzle and blast it in the air. Return to the tank from the fuel water separator.

Check that the inline filter’s mesh size isn’t smaller than required. You ensure this by matching the rating of the mesh.

6. Injector Problems

John Deere 333G is prone to clogged fuel systems and injectors. There will be a lot of vibration, and won’t hook it up to full speed at most RPMs.

The faulty fuel pump is primarily responsible for this problem. Potentially, regaining speed would involve replacing it. However, the engine noise or vibration may persist.

It may be necessary to bleed the injector lines and then refill them. Keep your gas tank and all related components clean at all times.

7. Electrical Problems

The John Deere 333G frequently locks up, which is one of the most typical issues. There’s a possibility that the parking brake and the booms will jam. After being turned off, it would frequently begin working again.

As a result, the entire gauge cluster could fail. This could potentially unlock the machine and trigger the starter.

The cluster’s connections are probably not very tight. The gauge cluster may benefit from replacement. The ignition switch on this one frequently shorts out as well. You should update this as well.

The parking brake not engaging is a problem. That’s because the jarring of the car might have tripped the seatbelt switch.

Another vulnerable area is the brake wire. It ought to be examined and, if required, replaced.

John Deere 333G Problems: are they a deal-breaker?

The John Deere 333G has received a lot of positive user feedback. Although they think the steering is a bit difficult to maneuver. However, this issue is no longer present in the newest models.

Try to stay away from 1999 and 2000 model year automobiles. Check the plate with the serial number. You can also find it in the frame’s operator’s compartment on the front right.

There will be 13 digits in the serial number, and the one you need is the sixth one from the end. You shouldn’t buy the device if the first digit is a 1 or 2.

Of course, you already know a few minor problems, such as the Ignition Switch. It’s a shame the 240 doesn’t have a turbocharger since else they’d be top-notch vehicles.

In general, users approve. However, they say getting a series or later model would be best. We experienced some problems with the earlier versions.

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