What are the reasons for the steering wheel not returning to center after turning?

[SanCollin]

There may be several reasons why the steering wheel does not return to center after turning: 1. Uneven tire inflation on both sides: Inconsistent tire pressure is one of the main causes of weak return force. To diagnose this issue, a tire pressure gauge must be used. The reason uneven tire pressure prevents the steering wheel from returning to center is that the side with lower pressure has a wider contact patch with the ground, naturally experiencing greater road resistance, causing the car to pull toward the side with lower tire pressure. In this case, the tire pressure on both sides should be readjusted to ensure uniformity. 2. Uneven tire wear between left and right wheels: If the tire wear differs significantly between the left and right wheels, it can cause the steering wheel to pull to one side. This issue can usually be addressed by rotating the tires. To resolve steering pull and extend tire life, tires should be rotated every 10,000 kilometers. 3. Lack of maintenance leading to stiff or overly tight steering ball joints, or possible incorrect toe alignment: Inspect the chassis and perform a four-wheel alignment if necessary.