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Uneven Tire Pressure or Alignment

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Uneven tire pressure or alignment can make a vehicle pull or drift and can be mistaken for a brake problem. If the pull happens all the time, check tires and alignment before blaming brake hydraulics.

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Most Likely Causes

  1. 1

    Different tire pressures side to side

    A low tire on one side changes rolling resistance and can pull the vehicle.

  2. 2

    Uneven tire wear or tire conicity

    A damaged or internally shifted tire can pull even if pressure is correct.

  3. 3

    Wheel alignment out of specification

    Toe, camber, or caster differences can cause drift or steering wheel off-center.

  4. 4

    Suspension wear affecting alignment

    Worn tie rods, ball joints, bushings, or struts can make alignment unstable.

How to Diagnose It

  1. 1

    Set all tire pressures to spec

    Adjust cold tire pressure to the door placard, then road-test on a flat road.

    Tool: Tire pressure gauge

  2. 2

    Inspect tire wear and rotate side to side if appropriate

    Look for feathering, cupping, edge wear, or belt shift. Some tire rotations can confirm tire pull.

    Tool: Tread depth gauge

  3. 3

    Check alignment and suspension play

    Inspect steering and suspension parts before performing alignment.

    Tool: Alignment rack, pry bar

How to Fix It

Mistakes to Avoid

  • Do not diagnose brake pull until tire pressure and tire condition are checked.
  • Do not align a vehicle with loose suspension parts.
  • Do not ignore a tire pull that changes after rotating tires.