What is the reason for the car to deviate from the road? Does the car need to be dynamically balanced when it deviates from the road?

We all drive straight, and few people deviate from the straight route. If you feel that the vehicle is deviating a little while driving, you need to eliminate the fault as soon as possible to avoid accidents on the road. The first thing to consider is the deviation caused by tire wear, but this reason is not absolute.

What is the reason for driving off track?

Vehicles will deviate to some extent. It is normal if the deviation range is within the specified value. Otherwise, it will be considered as deviation. According to regulations, the lateral deviation of the vehicle shall not exceed 5 meters per kilometer. Generally, a normal vehicle will deviate by about 3-4 meters per kilometer.

There are usually these reasons -

The difference between the left and right tire pressures is large. This is usually because one wheel is punctured or damaged, resulting in a large difference in tire pressure, causing one side of the car to be higher than the other.

The left and right shock absorbers are damaged, the shock absorber spring on one side is deformed and fails, and the shock absorption coefficients of the left and right sides of the car are quite different.

The four-wheel alignment parameters are abnormal. For vehicles that often drive on bumpy roads, the four-wheel alignment parameters are very easy to change, so the four-wheel alignment parameters should be adjusted regularly. The deviation of the direction of the car is usually the camber angle.

Inconsistent tire wear or different brands and patterns can also cause deviation, especially when refurbished or new tires are installed. The first 300 kilometers is the tire running-in period.

Does the car need to be balanced?

This problem usually does not occur in new cars, unless your tires have been bumped, or you are driving on a bumpy road at too fast a speed, causing the car's suspension data to change.

If it is an old car, the suspension parts have been replaced before, or the positioning has been done before, but the data is not adjusted properly, this problem will also occur. Or, after you change the tires, you don’t do dynamic balancing for you, or the dynamic balancing is not done well, which will also cause the vehicle to deviate.

measure

1. Check the tire pressure and adjust it to normal pressure. If the tire is deformed or abnormally worn, replace the tire first, then do dynamic balancing and four-wheel alignment.

2. Check the chassis parts, replace those that need to be replaced, reinforce those that need to be reinforced, and then do four-wheel alignment.

3. Adjust the brakes to make the four-wheel brakes consistent.

How to check if the car is running off track

First, determine whether the vehicle has been in an accident that caused the vehicle to deviate. If not, then check the vehicle's suspension system. Four-wheel independent suspension requires a four-wheel alignment to check whether the data is abnormal. If it is a torsion beam suspension system, simply do a dynamic balance.

When a car runs off the track, it usually means that there is a deviation in the car chassis data. First, check if there is any problem with the tires. If the tire tread is uneven, do a four-wheel alignment. When doing the alignment, let the technician look at all the data. Don't just adjust the front speed. If the vehicle runs off the track, the front speed, inclination, and wheelbase of the left and right wheels can all cause the vehicle to run off the track.

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