6 Most Common LS Tractor Problems and How To Fix Them

LS tractors guarantee high-standard features and more warranties at affordable prices. However, like most mechanical machines, your tractor is susceptible to breaking down from time to time. The most common LS tractor problems are hydraulic issues, problematic starts, transmission problems, overheating, stalling, and steering problems.

Let’s examine LS issues in detail and how to fix them.

LS Tractor Hydraulic Problems

Most LS owners complain of frequent hydraulic problems. LS tractors have different hydraulic systems, close-center or open-center. Both systems are susceptible to issues from time to time.

The first sign of a damaged hydraulic system is noise from aeration and cavitation. Aeration happens when air gets into the system through aged, porous intake lines. Excess air contaminates the hydraulic fluid and causes a banging sound when it contracts and expands during circulation.

Cavitation occurs when there’s less hydraulic fluid than stipulated in a section of the circuit. This leads to a vapor pressure drop in that section, forming vapor cavities. During contraction, these cavities collapse, producing a knocking sound.

To fix this problem, check for broken or faulty intake lines and replace them immediately. Always ensure the hydraulic fluid’s level is correct.

Overheating is another prevalent hydraulic problem in LS tractors. High hydraulic temperatures primarily result from restricted heat dissipation. Clogged filters are the leading cause of this problem. Fixing this issue entails cleaning or replacing the filters.

LS Tractor Transmission Problems

LS tractor transmission problems are the second most prominent issue. These tractors use hydrostatic transmissions, transmitting power from the engine to the hydraulic pump using liquid pressure. The transmission systems involve many mechanical parts and are thus prone to malfunction.

Primary hydrostatic transmission parts include metal hoses, a drive axle, and rubber. The system may misbehave if any of the components are faulty or damaged. You should check out for parts that need repair when fixing this problem.

Little oil is another cause of transmission problems. It leads to the formation of air cavities in the circuit, resulting in difficult starting and stalling. Fixing this issue involves filling the tank regularly and appropriately.

Transmission problems may also be a result of faulty linkages. To fix this, examine if the brake, control, and pedal linkages have slipped or are loose.

Starting Issues

Problematic starts are among the most common ls tractor problems. Your tractor can be challenging to start due to low battery charge, a clogged fuel filter, aged fuel, or wrong PTO switch positioning.

A low battery charge means that the tractor has little power and thus will be challenging to start. The first step you should take if your LS tractor refuses to start is to check the tank and fill it up if depleted.

Clogged fuel filters are a result of dirt or fuel residue build-up. This constricts the fuel reaching the engine, preventing the tractor from starting. You could use the B-12 Chemtool spray or any other cleaning fluid with a rag to clean the filter.

Aged fuel is another cause of difficult starting. Over time, fuel disintegrates and degrades, becoming incapable of powering the tractor. Discard old fuel and replace it with a new one for better functioning.

LS tractors’ engines start only if the PTO switch is in the off position. Ensure the switch is rightly placed before looking at other causes.

Engine Overheating

Engine overheating results from the tractor’s inability to dispel excess heat. This can be due to blocked radiator screens, clogged air filters, insufficient coolants, or faulty fan belts.

The radiator screen’s primary function is to dissipate heat. However, it can malfunction when clogged by dirt and debris after a while. Wash it regularly to avoid such inconveniences.

Clogged air filters increase your tractor’s temperatures, as they can’t let in clean, cool air. Air filter blockage is guaranteed to take place due to dust build-up. Frequently clean your tractor’s filters.

Refilling your coolant should be part of your regular maintenance. Its reduction could cause a surge in your tractor’s temperatures. Cracked, old, or loose fan belts don’t function properly. Replace them immediately after you notice them.


Stalling is one of the most prevalent LS tractor problems. This issue is primarily due to fuel complications, faulty injection pumps, wrong valve gaps, or poor lubrication.

Always fill your tractor’s fuel tank to the appropriate level and clean the fuel filters for smooth operation. Using high-quality gas to avoid excess fuel residue build-up will save you lots of trouble.

If your tractor stalls due to a faulty injection pump, replace it immediately. You should also ensure that the tractor’s valve gaps are correct.

Poor lubrication will cause most of your tractor’s parts to be immobile and thus stall during operation. Lubricate your tractor regularly and sufficiently to prevent stalling. 

Steering Issues

Your LS tractor may be challenging to steer if there’s a poor bolt connection, a faulty hydraulic pump, or little fuel.

Check if the tractor’s steering is correctly connected. Proper alignment of the column spline and the steering unit spline should fix the problem. Also, ensure the bolts are well connected.

The tractor’s hydraulic pump provides the energy necessary for steering. Any defects could make steering difficult. Clean the hydraulic filter and change the fuel regularly to curb hydraulic issues.

How To Enhance LS Tractor Reliability

Below are tips on enhancing your LS tractor’s reliability:

  • Regularly service the fuel injectors – Clogged fuel injectors lead to low power production, which causes poor functioning.
  • Stick to high-quality products – Substandard or low-quality products will cause your tractor to wear down fast. High-quality oils, fuels, and lubricants will extend your tractor’s life and boost its performance.
  • Regular Maintenance – Your tractor is prone to malfunction if you don’t maintain it properly and regularly. Follow LS tractor maintenance guidelines to improve your tractor’s reliability.
  • Use the correct tires – Working on different terrains requires tires of varying strengths. Always confirm the ideal tires for specific terrains and soil types with your dealer.
  • Maintain a stable speed rate – Maintaining a stable speed rate allows the tractor to get familiar with the pace, yielding the best results each time.
  • Reduce cooling time – Avoid running the tractor when not necessary for efficient fuel use. Five minutes are enough to circulate the cooling oil through the tractor.

LS Tractor Reviews

Are LS tractors any good? These tractors have outstanding features. LS tractors have automatic mechanical transmission, which eases work.

Featuring a 4-cylinder diesel engine with 35 PTO horsepower, LS tractors guarantee fast and smooth operation. Their 16 X 16 gearboxes are combined with electrical controls to promote quick flicking.

LS tractors have long wheelbases, offering more traction, support, and stability. Their large fuel tanks reduce fuel injection breaks and are thus ideal for more extended operations. Combined with air suspension seats, these tractors ensure ultimate comfort during work.

Wrap Up

LS tractor problems are many. However, these tractors are easy to fix and have great features. Fixing tips in this post are easy to understand and don’t require you to spend lots of cash on professional help.