My car pulls to the right or left despite the parallelism: what should I do?

The parallelism of your vehicle is part of that vehicle's geometry along with camber and caster. This helps to ensure good handling of the vehicle and prevent it from moving left or right. However, if you notice that your vehicle is pulling to the side despite achieving parallelism, you need to more accurately determine the cause of this malfunction.

⚠️ What are the reasons for the car to move to the right or to the left?

When driving on board, it may feel like your vehicle is pulling to the right or left. This can be especially important during deceleration or acceleration phases. Thus, these manifestations can be explained by several different reasons:

• Poor tire pressure : if your tires are not inflated enough, the traction will be worse and the car will pull to the side.
• Malfunction in the geometry of the vehicle : The geometry of your vehicle must be checked or, if it has already been done by a professional, it must be checked again. This can be due to poor camber, caster, or poor parallelism adjustment;
• Worn shock absorber : one of the shock absorbers can be completely damaged and this will cause pull to the left or right;
• of wheel bearings HS : they can be grabbed or carried, so they will slightly tilt your car to one side or the other;
• Brake system problem : It could be caused by a brake fluid leak or a faulty brake disc. In this situation, the vehicle will pull to the side, especially when braking.

💡 What are the ways to prevent the car from moving to the right or left?

To solve the problem of traction on one side of your vehicle, you can choose several solutions depending on the nature of the problem. Indeed, several methods will be available to you:

1. Inflate your tires : Go to a service station with a tire inflation station or buy a compressor to correct the tire pressure. To find out the optimal values, you can refer to service book your car;
2. Complete the geometry of your car : if the problem is related to the geometry of the car and, in particular, with parallelism, it will have to be adjusted by yourself or by a professional in the workshop;
3. Replace one of the shock absorbers : if you notice that one of your shock absorbers is out of order, it will have to be replaced in order to correct the traction of the vehicle;
4. Replace wheel bearings : if your wheels can no longer rotate correctly, you need to replace the wheel bearings on the same axle;
5. Brake system repair : An experienced mechanic will come to diagnose the cause of the brake system malfunction and fix it.

🛠️ How to parallelize your vehicle?

If you want to parallelize your car yourself, you should know that this will be much less accurate than an expert with professional tools.

Required material:

Protective gloves

Toolbox

Jack

Candles

ruler

Step 1. Remove the wheel from the car.

Start by placing your vehicle on the jack and jack support, then remove the wheel.

Step 2: adjust parallelism

At the level of the rack arm, you will need to unscrew the nuts and then reinstall the disc support. Then it will be necessary to adjust the steering ball joint in one direction or another in accordance with the settings.

Step 3: reinstall the wheel

When the parallelism is properly adjusted, you can raise the wheel and then lower the car. To check your settings, you can perform several tests to make sure the car is no longer moving left or right.

🔍 What are the other possible symptoms of a car moving to the right or left despite being parallel?

If your car is moving left or right, you will quickly notice other warning symptoms. It can be strong increased consumption fuel or important degradation Tires uneven. In any case, your driving comfort will be significantly reduced and the risk of losing your lane is high.

As soon as your vehicle pulls too far to the side, you should immediately have it checked by a professional. Use our online garage comparator to make an appointment with a garage near your home in a few clicks and at the price that best suits your budget!