An accelerating engine is one of the most beautiful sounds in the world. The roar of an engine, the sound of rubber on tarmac; it’s all music to a petrol head’s ears. But there’s one particular noise that always sends a shiver up your spine, no matter how much you love cars – the thump.
What is the thump? It’s that deep, solid noise that a car makes when it accelerates hard. It’s can be caused by a number of things, but is usually down to the engine mounts. These are the pieces of metal that hold the engine in place, and when they start to wear out, they can cause a thumping noise.
In this article, we’re going to take a look at what causes the thump, and how you can fix it, other than engine mounts. We’ll also take a look at some of the best engine mounts on the market, so you can keep your car sounding sweet. Let’s get started!
Car Thump Noises and Their Meanings
The following are some of the car thump noises you may experience and their potential causes along with it means for your vehicle:
Noise Caused by the Type of Tires
This can be quite concerning for car owners as it can signify an issue with the suspension. If you’re hearing a thumping noise coming from your car, it’s possible that your tires are the cause. This is especially true if you hear the noise when driving over bumps or uneven surfaces.
Some certain types of tires such as those with a low profile are more prone to this type of noise. If this is the case, you may need to switch to a different type of tire or have your suspension looked at by a professional.
Uneven Worn-Out Tires’ Noise
Over time, your tires will naturally wear down unevenly. This can cause a thumping noise as you drive. If you’re noticing this type of noise, it’s time for a new set of tires.
This occurs because the tread on your tires is no longer even. When driving, the tires will hit different parts of the road at different times, causing a thumping noise.
Worn-Out Struts or Shocks
A far more obvious cause of a car thump is if your struts or shocks are no longer in good condition. If this is the case, you’ll likely hear a thumping noise whenever you brake or accelerate.
This is because the worn-out struts and shocks can’t properly absorb the impact and movement of the car. As a result, you’ll hear a thumping noise as the car bounces around.
Also read: How Much Does It Cost to Replace Struts
Broken Starter Motor Mount
If you hear a thumping noise when you start your car, it’s possible that your starter motor mount is broken. This can cause the engine to move around excessively, resulting in a thump sound.
A broken starter motor mount is a serious issue and should be fixed as soon as possible as it can cause further damage to your car.
Warped Brake Rotors
Brake rotors can warp over time, which can cause a thumping noise. This is more common in cars that are driven frequently and for long distances.
They can warp due to excessive heat or because of improper installation. If you’re experiencing a thumping noise when braking, it’s possible that your brake rotors are warped and need to be replaced.
A bit more of a concerning thumping noise can come from a faulty transmission. This is usually accompanied by a feeling of the car shaking or shuddering.
This happens if the gear or clutch are slipping or not engaging properly. This can cause a thumping noise as the gears grind against each other. A faulty transmission is a serious issue and should be fixed as soon as possible.
Worn Out Spark Plugs
Spark plugs are an essential part of your car’s engine and over time they will wear out. This can cause a thumping noise when the air and fuel mixture is not properly detonating in the cylinder.
You may also notice that your car is having trouble starting or that the engine is misfiring. Worn out spark plugs are a common issue and should be replaced regularly.
Bad Wheel Bearing
In addition to tires, another common cause of a thumping noise is a bad wheel bearing. This is usually accompanied by a grinding noise as well.
A bad wheel bearing will cause the wheel to wobble or shake and can be very dangerous. If you’re experiencing a thumping noise, it’s possible that your wheel bearings need to be replaced.
A Damaged Exhaust System
The exhaust system is another part of your car that can cause a thumping noise. This is usually accompanied by a rattling noise as well.
A damaged exhaust system can be caused by a number of different things, such as rust or a loose clamp. If you’re experiencing a thumping noise and it’s not one of the other causes, it’s possible that your exhaust system needs a professional to take a look at it.
Low Tire Pressure
When your tires are not properly inflated, it can cause a thumping noise. This is because the car is not able to absorb the impact of the road as well.
It’s important to keep your tire pressure at the recommended level as it can save you money on fuel and improve your car’s handling. If you’re experiencing a thumping noise, check your tire pressure and inflate them if necessary.
Worn-Out CV Joint
A CV joint is the part of your car that connects the axle to the wheel. Over time, they will wear out and can cause a thumping noise.
You may also notice that your car is having trouble turning or that it’s harder to control. If you’re experiencing a thumping noise and it’s not one of the other causes, it’s possible that your CV joint needs to be replaced.
Also Read: How Much Does It Cost To Replace U Joints
What to Do When You Hear Thumping Sounds on Your Vehicle?
This can depend vastly on the type of thumping noise your car is making. However, some things are pretty universal no matter the source of the noise. If you’re experiencing a thump or vibration when you accelerate, it’s important to bring your car in for a check-up as soon as possible. Continuing to drive with an issue like this can lead to further damage and an increased repair bill.
Not only does it damage your vehicle, it’s also massive safety concern. Some of these issues, like warped brake rotors, can cause your car to stop abruptly without warning or having low tire pressure can cause a blowout.
There are a number of different things that can cause a thumping noise in your car. Some of the more common causes are worn out tires, shocks or struts, a broken starter motor mount, warped brake rotors, a faulty transmission, and a damaged exhaust system. In most cases, if you’re experiencing a thumping noise it’s best to take your car in for a check-up. Continuing to drive with an issue like this can lead to further damage. Thank you for reading!
If this helped you learn why a car makes thump sound when accelerating, consider checking out our other articles below: