A car that drifts left or right when you ease off the wheel is trying to tell you something. The cause is usually alignment, pressure or a tyre, and the checks run cheapest first, so it pays to work through them in order rather than booking the most expensive fix straight away.
Rule out the free things first
Before paying for anything:
- Check the pressures. A tyre softer than its partner pulls the car toward it. Set all four to the placard figure, per correct tyre pressure, and see if the pull goes
- Note the road. Many roads are cambered to drain water, giving a slight, harmless pull toward the kerb that is not a fault at all
Then the tyres
If pressures are even and the pull remains, the tyres are next:
- Uneven wear can change how a tyre rolls and steers, as covered under uneven tyre wear
- Conicity, a fault built into a tyre's casing, can steer the car on its own. The test is simple: swap the front tyres side to side. If the pull swaps direction with them, a tyre is the cause
Then alignment, then brakes
With pressures and tyres cleared, the likely answer is wheel alignment, knocked out by a pothole or kerb and pulling steadily to one side. It is worth fixing promptly because the same misalignment scrubs the tread away, the link covered under wheel alignment and its warning signs. Last on the list is a dragging brake, which usually pulls only under braking and often comes with a smell or a warm wheel.
From the workshop: everyone wants to book a four-wheel alignment for a pull, and sometimes that's right. But I check the pressures first, free, and half the time one tyre's down ten PSI. After that I swap the fronts over. If the pull follows the tyre, it's the tyre, not the tracking. Order of checks saves people money.
Sources and accuracy. This reflects standard diagnosis at the time of writing. A sudden or strong pull should be checked promptly, as it can signal a deflating tyre or a brake fault. If anything here looks wrong, get in touch and we will check it and put it right.
Common questions
Why does my car pull to one side while driving?+
The common causes are wheel alignment being out, unequal pressures left to right, or a tyre fault. A dragging brake can do it too. Checking and equalising the pressures first is free and rules out the simplest cause before paying for alignment.
Can tyres cause a car to pull?+
Yes. Unequal pressures pull toward the softer side, and a fault inside a tyre, called conicity, can steer the car even when everything else is correct. Swapping the front tyres side to side is a quick way to test for it: if the pull swaps with them, the tyre is the cause.
Is a car pulling to one side dangerous?+
A mild pull is mostly a nuisance and a sign of wasted fuel and uneven wear, but a strong pull is tiring and unsafe, and a sudden one can mean a deflating tyre or a brake fault. Either way it is worth diagnosing rather than fighting the wheel.
How much does it cost to fix a car pulling to one side?+
If it is pressures, nothing. If it is alignment, a front-wheel adjustment is a modest workshop charge; full four-wheel alignment costs more. A faulty tyre means a replacement. Diagnosing the cause first avoids paying for alignment when a tyre or a soft pressure was really to blame.