John Deere La135 Problems: Troubleshooting Tips and Solutions

John Deere La135 commonly experiences issues with starting, hydrostatic transmission, and deck belt slipping. These problems can often be resolved with routine maintenance and repairs.

Proper care and maintenance of your John Deere La135 will ensure optimal performance and longevity of the mower. Regularly checking and servicing the engine, transmission, and mower deck will help prevent these common issues from occurring. We will discuss troubleshooting tips and solutions to address these problems and keep your John Deere La135 running smoothly.

By following these maintenance guidelines, you can enjoy a hassle-free mowing experience with your machine. Let’s dive into the details to ensure your John Deere La135 stays in top condition.

Common John Deere La135 Problems

The John Deere La135 may experience some common problems, such as issues with the mower deck, engine stalling, and transmission difficulties. However, these problems can be resolved with proper maintenance and troubleshooting.

Engine Issues

The John Deere La135 is a reliable lawn tractor, but like any other equipment, it can experience common engine issues. One of the prevalent problems many owners face is engine overheating, which can be caused by a dirty air filter or low coolant levels. Irregular idling is also a frequent complaint and may be due to dirty fuel filters or a malfunctioning carburetor.

Transmission Problems

The transmission is an essential component of the John Deere La135, and issues in this area can cause significant disruptions. Difficulty in shifting gears is a common complaint, often stemming from low transmission fluid levels or failing transmission components. Another issue is slipping or jerky movements, which may indicate worn-out drive belts or an overused clutch.

Electrical Troubles

Electrical troubles are another set of problems that John Deere La135 owners may encounter. Failure to start is a prevalent issue, often caused by a dead battery or faulty ignition system. Additionally, dim or flickering lights can signal a charging system malfunction or loose electrical connections.

John Deere La135 Problems: Troubleshooting Tips and Solutions


Troubleshooting Tips

When it comes to troubleshooting problems with your John Deere LA135, having the right tips can help you quickly resolve issues and get back to maintaining your lawn effectively. Below are some essential Troubleshooting Tips categorized into different areas.

Engine Troubleshooting

  • Check fuel levels to ensure sufficient supply for the engine.
  • Inspect spark plugs for signs of wear or damage.
  • Clean or replace air filter if clogged with dirt or debris.

Transmission Diagnostics

  1. Check transmission fluid levels to ensure proper lubrication.
  2. Look for leaks or damaged components in the transmission system.
  3. Inspect the drive belt for signs of wear or slipping.

Electrical Problem-solving

Issue Solution
Battery not charging Test battery voltage and connections for any issues.
Faulty ignition switch Replace the ignition switch if necessary.


The John Deere La135 may encounter various problems, including engine issues, transmission malfunctions, and electrical system failures. Seeking professional solutions and regular maintenance can help address these problems effectively, ensuring optimal performance and longevity for your equipment.

John Deere La135 Problems – Solutions

Repairing The Engine

Engine issues on the John Deere La135 can be resolved by checking for fuel and spark.

Fixing Transmission Issues

To fix transmission problems, ensure proper lubrication and check for any worn-out parts.

Resolving Electrical Problems

Address electrical concerns by inspecting wiring, connections, and the battery for any faults.

John Deere La135 Problems: Troubleshooting Tips and Solutions


Preventive Maintenance

When it comes to maintaining your John Deere LA135, preventive maintenance plays a crucial role in preventing potential problems that can occur. By adhering to proper engine care, transmission maintenance, and electrical system upkeep, you can ensure the longevity and optimal performance of your equipment. In this section, we’ll delve into these key areas of preventive maintenance to help you keep your John Deere LA135 running smoothly.

Proper Engine Care

Proper engine care is essential for the efficient operation of your John Deere LA135. Regularly check and change engine oil to prevent buildup of impurities and ensure lubrication. Inspect and clean the air filter to prevent dirt and debris from affecting the engine performance. Additionally, monitor the cooling system to prevent overheating and replace the spark plugs as recommended by the manufacturer to maintain optimal engine performance.

Transmission Maintenance

Maintaining the transmission of your John Deere LA135 is crucial for its long-term functionality. Regularly check the transmission fluid level and ensure it is at the proper level to prevent component wear and tear. Inspect the drive belts for any signs of wear and replace them as needed to prevent potential disruptions in the transmission system. Additionally, ensure that the transmission components are properly lubricated to prevent friction and ensure smooth operation.

Electrical System Upkeep

The electrical system of your John Deere LA135 requires regular maintenance to ensure reliable performance. Inspect the battery for any signs of corrosion and ensure the terminals are clean and tightly connected to prevent electrical malfunctions. Additionally, check the wiring harness for any signs of damage and repair or replace any faulty wiring to prevent electrical issues. Regularly inspect fuses and connectors to ensure they are in good condition and replace any damaged components to maintain the integrity of the electrical system.

When To Seek Professional Help

While many common issues with the John Deere LA135 can be resolved with basic troubleshooting and maintenance, there are times when it’s best to call in the professionals. Recognizing the signs of complex issues and finding reliable service centers can save you time, money, and prevent further damage to your mower.

Signs Of Complex Issues

If you’ve tried the usual troubleshooting steps but your John Deere LA135 is still experiencing problems, it may be an indication of a more complex issue. Here are some signs to look out for:

  • Consistently weak or uneven cutting performance
  • Unusual noises coming from the engine or deck
  • Inconsistent operation of the mower’s controls
  • Excessive smoke or fumes
  • Fluid leaks
  • Engine overheating

If you notice any of these signs, it’s crucial to avoid further operation of your John Deere LA135 and seek professional help.

Finding Reliable Service Centers

When it comes to getting professional help for your John Deere LA135, finding a reliable service center is key. Here’s how you can go about it:

  1. Check for authorized John Deere dealerships in your area.
  2. Read online reviews and ask for recommendations from other John Deere LA135 owners.
  3. Contact the service centers directly to inquire about their experience with John Deere mowers and the types of repairs they offer.
  4. Ensure the service center has certified technicians who are trained to work on John Deere equipment.
  5. Ask about the availability of genuine John Deere parts for replacements.
  6. Compare prices and warranty options offered by different service centers.

By finding a reliable service center, you can have peace of mind knowing that your John Deere LA135 is in capable hands.

John Deere La135 Problems: Troubleshooting Tips and Solutions



Understanding the common issues and solutions for the John Deere LA135 can help you maintain and troubleshoot your mower effectively. By being proactive and attentive to potential problems, you can ensure the optimal performance and longevity of your equipment. Stay informed and proactive for a seamless mowing experience.

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