Buzzing Sound When Turning Key In Ignition

Have you been noticing your car make a buzzing sound when turning the key in the ignition? This is as a result of the mechanism equipped in vehicles. When starting your car, many systems are triggered and these systems are what causes your car to start. Your car will make a buzzing sound when turning the key in the ignition if there is a fault with any of the systems.

If you have been using your car for a couple of years, the buzzing sound when turning the key in the ignition might be a fault from the starter. This means that your starter might need to be replaced.

A bad battery is another factor that can a cause buzzing sound when turning the key in the ignition. One symptom of this fault is a delay in your car before starting. This is because the battery will be unable to supply enough current to the car system.

It doesn’t matter your car type; it will make the buzzing sound when turning the key in the ignition whenever the cause arises. It is difficult to instantly point out the cause of the buzzing sound when turning the key in the ignition. Thus, making it hard to fix.

Let’s take a moment to analyze the various causes of the buzzing sound when turning the key in the ignition.

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Kinds Buzzing Sound When Turning the Key In Ignition

Clicking Noise

When your car starter weakens, it is likely to develop a loud clicking noise. This is another problem accompanying the buzzing sound when turning the key in the ignition. This will occur if your car starter motor does actuate but will not spin. That indicates your starter is bad and may be caused by a faulty solenoid.

Soft Buzzing

If your starter is lacks enough current flow, the performance of your car will be affected. This will trigger a soft buzzing sound when turning the key in the ignition. This is an indication that the current flow is reaching the starter. But it is low or bridged and can’t have it actuate and turn the flywheel. To make sure that your starter receives enough power. Clean your car battery terminal from any corrosion condensation there.

Swishing Sound

If you hear a buzzing sound when turning the key in the ignition. This may be because the pinion gear which activates the flywheel is unable to power the flywheel. But the pinion gear is still spinning. This will trigger a swishing or whirring sound in your car. To fix this fault, you might need to replace your starter motor.

Grinding Noise

If your car is making a grinding sound. This can make your car make a buzzing sound when turning the key in the ignition. The major cause of this grinding noise is when the flywheel teeth wears out or gets missing. Even when a pinion gear has loose teeth, it makes a grinding noise.

The this will cause them not to function properly to crank your car’s engine. A loose bolt is just another factor that that can cause the grinding sound. When your starter has a loose bolt or bolts. Your starter will make a grinding noise as it rattles to start if one of its bolts loosens.

Causes Of Buzzing Sound When Turning Key In Ignition

Now that we have discussed the different kind of sounds your car can make. Let us take a moment to look at the most possible causes.

Low Electric Current Causing Buzzing Sound When Turning Key In Ignition

Your car will make a buzzing sound when turning the key in the ignition if the electric current supply is low. A low power supply to your car will cause low voltage. And low voltage won’t crank your starter’s power. This will make triggering the ignition difficult. That means your starter is having a low electrical power supply.

Activating the flywheel requires sufficient energy on your flywheel. the engine itself is cranked by the flywheel. This means that Your car will make a buzzing sound when turning the key in the ignition if there is not sufficient power on the starter.

Faulty Flywheel Causing Buzzing Sound When Turning Key In Ignition

In some car models, the engine is cranked by the flywheel. The flywheel is there to help balance the vibration. This is possible as the pistons fire in multiple directions when activated.

Also, if your car is not equipped with numerous cylinders, it is the flywheel that cranks the engine.

The flywheel is connected to your car’s cranking motor. And the cranking motor is linked to your car’s ignition key. Once the ignition is turned ON, the flywheel spins and cranks the engine.

The flywheel also reduces the engine stress and components speed, thus supporting the engine weight.

Therefore, the wheel cranking will stabilize your car’s engine operation and dislodge any unmatched rotation. If your flywheel has become worn out or faulty. It will make a buzzing sound when turning the key in ignition. This happens if the faulty wheel affects your cranking motor.

If the wheel should have another fault other than what was said above. It will not trigger a buzzing sound when turning key in ignition. Furthermore, when your flywheel is bad, you experience vibration on your car accelerator.

So, it’s necessary to check the health of your starter flywheel. The flywheel is very important for a car to crank.

Issues With Starter Motor Causing Buzzing Sound When Turning Key In Ignition

A buzzing sound when turning key in ignition can also be caused by the starter motor. Your starter motor is what ignites your car’s engine. It gets power from the battery which it uses to crank your car.

The relay is the transmitter in charge of sending power between the starter motor and engine.

So, if your car starter is bad or defective. It will make a buzzing sound when turning key in ignition. The engine light will come up on the dash. Yet, the engine won’t crank and will be making a clicking sound.

Forcing a car with a faulty or bad starter can cause severe damage to your car. It can cause your car to release smoke which is bad for your car’s other component’s health.

The smoke comes from short circuits or burnt fuses in the electrical component of your car.

If your engine leaks oil. This can affect the lifespan and operation of your starter. This may be the reason why you notice a buzzing sound when turning key in ignition. Check in the hood of your car to know if it’s an oil leakage that damaged your starter.

Battery Problems Causing Buzzing Sound When Turning Key In Ignition

Little faults with your battery can as well trigger the buzzing sound when turning key in ignition. When your car wires are faulty or broken or have short circuits. Even if it’s the terminals that are not transmitting power appropriately. Then your car will experience electrical faults. And you will experience a delay in the cranking of the engine.

Current from the battery will not flow efficiently if the terminal nuts are loose. This will lead to current waste and can possibly cause electrical challenges in your car.

Lastly, corrosion on your battery terminals will cause a power reduction to dissipate.

Solutions To Buzzing Sound When Turning Key In Ignition

Changing Transmission

When you start your car with the wrong transmission. This can cause a buzzing sound when turning key in ignition.

To start your vehicle, kick-start it in parking mode or with neutral gear.

Increasing The Voltage

When your car experiences low current flow. The starter will as well receive low power and can’t crank your car.

Recharging your battery is the initial step to increasing the voltage. And jumpstarting your car is another step to consider. Connect your battery terminals with another if you want to jumpstart your car.

Once you have connected the battery cables. Keep the other car ON and use the current to ignite your car. don’t get disconnected until the voltage has been increased.

Fixing The Flywheel

The performance of your flywheel will decrease if it becomes worn out or faulty. consider taking your car to a mechanic to fix a flywheel fault as you will be unable to fix it.

It may be an error in your car’s electrical wiring to the flywheel and starter if the buzzing sound when turning key in ignition continues afterwards.

So, ask your mechanic or check to confirm the connections are accurate and stable.

Cleaning The Battery To Solve Buzzing Sound When Turning Key In Ignition

You will need to clean the corrosion for proper transmission of current if your battery terminal has been clustered by corrosion. Corrosion is capable of damaging the voltage produced by your car.

To clean the corrosion on your battery. You have to remove the terminals. There are car chemicals or use baking soda to clean the corroded area. After cleaning off the corrosion, install the connections back. And your car should have enough power supply now.

Tightening The Terminals

When your car’s terminal wires are loose. The battery will transmit a small current. This can trigger the buzzing sound when turning key in ignition. To fix this, open your car’s hood and use a wrench to tighten the terminals.

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Contacting The Experts

Do well to seek professional help to fix buzzing sound when turning key in ignition if you have tried the above stated steps to no avail.

You can check out supercars and get a quote. Your auto manufacturer can be contacted to assist in this.

Final Thoughts

Hearing a buzzing sound when turning the key in ignition is something big to worry about. You should take your car to a mechanic. Please be informed not to try to fix the electrical connections of your car. Doing so will endanger your car and yourself.

When your car makes a buzzing sound when turning key in ignition. Your car will likely not start. And as detailed above, there are many reasons to experience a buzzing sound. And we have as well covered their fixes.