John Deere Ignition Coil Problems

One of the most common problems with John Deere Ignition Coils is when they go bad. This can be a result of several different things, but the most common cause is simply old age. The good news is that replacing your John Deere Ignition Coil is a pretty simple process, and it’s one that you can do yourself with just a few tools.

If you’re having problems with your John Deere ignition coil, there are a few things you can check before taking it to a mechanic. First, make sure the coil is properly connected to the spark plug. If it’s loose, it could be causing the misfire.

Next, check the gap on the spark plug. If it’s too wide, the spark could be jumping across the gap instead of igniting the fuel. Finally, check the wires going to the coil for any signs of wear or damage.

If you find any, replace them before they cause further problems.

John Deere Coil Test X485 {Kawasaki}

What are the signs of bad ignition coils?

If your car’s ignition coils are failing, you’ll likely see one or more of these four symptoms. 1. The Check Engine Light Is On One of the first signs that your ignition coils may be failing is that the check engine light comes on.

If the light is accompanied by a message saying “service engine soon,” it’s time to take your car to a mechanic to have it checked out. 2. Your Car Is Misfiring If your car is misfiring, it means that the ignition coils are not providing enough spark to the spark plugs.

This can cause the engine to run rough, and you may notice a decrease in power. 3. Your Car Is Hard to Start If your car is having difficulty starting, it could be a sign that the ignition coils are failing.

When the coils are not providing enough spark, it makes it harder for the engine to start. 4. Your Car Is Running Poorly If your car is running poorly, it could be due to failing ignition coils.

When the coils are not providing enough spark, the engine can run rough and you may notice a decrease in power. If you notice any of these symptoms, it’s important to take your car to a mechanic to have it checked out. Ignition coils are an important part of the engine, and if they are failing, it can lead to serious problems.

What are the symptoms of a bad coil on a riding lawn mower?

If your riding lawn mower is having trouble starting, it may be due to a bad coil. The coil is responsible for providing the spark that ignites the fuel in the engine, so if it’s not working properly, the engine won’t start. Other symptoms of a bad coil include a loss of power while mowing, and the engine running rough or misfiring.

If you suspect your coil is bad, take it to a lawn mower repair shop to have it checked and replaced if necessary.

What problems can a bad ignition coil cause?

An ignition coil is an essential component of a vehicle’s ignition system, and it can cause a variety of problems if it fails. The most common problem is engine misfires, which can cause the vehicle to run rough or even stall. Other problems can include poor fuel economy, engine vibration, and a check engine light.

If you suspect your ignition coil is failing, it’s important to have it diagnosed and replaced by a qualified mechanic as soon as possible.

What happens if one ignition coil goes bad?

If one ignition coil goes bad, it will usually cause the engine to misfire. The engine may also run rough and the check engine light may come on.

Kawasaki ignition coil problems

Kawasaki ignition coil problems are a common issue with many Kawasaki vehicles. There are a few different things that can cause this problem, and it is important to know what to look for in order to fix it. One of the most common causes of Kawasaki ignition coil problems is a faulty spark plug.

If the spark plug is not firing correctly, it can cause the coil to overheat and eventually fail. Another common cause is a build-up of debris on the coil itself. This can happen if the coil is not cleaned regularly, and it can eventually cause the coil to short out.

If you suspect that your Kawasaki ignition coil is having problems, the first thing you should do is check the spark plug. If it is not firing correctly, replace it with a new one. If the problem persists, you may need to clean or replace the coil itself.


John Deere ignition coils are a common source of problems for lawn mowers. Ignition coils produce the high voltage needed to ignite the engine’s fuel. Over time, they can wear out or become damaged.

This can cause the engine to misfire or not start at all. If you’re having problems with your John Deere lawn mower, it’s a good idea to check the ignition coils.

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