Causes of Car Legs Making a Thumping Sound and Their Solutions

Knowing the causes of the car's suspension making a thumping sound along with the solutions early on is very necessary. This is because the sound can disturb the comfort of the driver and passengers when passing through uneven roads. So what are the causes of this condition? To satisfy your curiosity, let's pay attention to the following review.

Causes of Car Suspension Making Thumping Sounds and Their Solutions

There are several things that cause the car's suspension to make thumping sounds along with their solutions that you need to know. Here are the complete causes and solutions:

1. The rubber on the arm bushing is worn

Every car is equipped with components that dampen engine and tire vibrations, one of which is the BSA (Bushing Swing Arm). Usually, car manufacturers place four BSA components at the front of the car and four BSA at the rear. This component is shaped like a bottle and contains an iron pipe coated with rubber material.

When the rubber wears down due to prolonged use, the thumping sound in the car's suspension will be heard. To address this issue, you need to replace the worn component with a new one.

2. The long tie rod is worn

The second cause is due to the long tie rod being worn or damaged. Damage to the long tie rod occurs due to age factors or reckless driving when passing through damaged roads. For example, driving at a high speed on bumpy roads.

This can cause the components inside the long tie rod to rub against each other and collide, shortening the lifespan of the components.

To solve this problem, you need to improve your driving technique. Always drive at a moderate or slow speed when passing through damaged roads. If the long tie rod components feel loose and produce a thumping sound, you can replace the worn components with new ones.

3. The stabilizer bushing is worn

The third cause of the thumping sound in the car's suspension is due to the wear of the stabilizer bushing. If this component is worn, it will become loose.

This occurs because the isolator rubber on the stabilizer bushing is also worn. As is known, the function of this rubber is to dampen vibrations from the stabilizer link so that the vibrations do not transfer to the car's chassis.

The solution to this problem is quite simple, which is to replace the worn component with a new one. Don't forget to pay attention to the fastening bolts during the installation process. Make sure the bolts are tightened so that the stabilizer bushing does not become loose.

4. The shock absorber support rubber is worn

The fourth cause is due to wear on the shock absorber support rubber. As you know, the function of this rubber is to dampen tire vibrations so that these vibrations do not transfer to the car's body when passing through damaged roads.

To address this issue, you just need to retighten the fastening bolts. Additionally, you need to replace the component if the damage is deemed intolerable.

5. The shock absorber spring is dead

The last cause of the car's suspension making thumping sounds is due to damage to the shock absorber. Damage to the shock absorber can be marked by the shock absorber spring not being able to bounce properly, making it stiff.

This condition causes the thumping sound because the shock absorber cannot swing and dampen vibrations from the car's wheels when traversing damaged roads. The solution to this issue is to replace the damaged shock absorber with a new one.

Make sure you purchase these components at a Daihatsu workshop to get genuine and quality parts. The Daihatsu workshop will also provide the best handling and maintenance for your car when you need assistance, as Daihatsu has skilled and professional mechanics.

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