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2016 WRX Pulling to One Side and Uneven Tire Wear After Pothole

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Mike T. · rep 0 · May 25, 2:15 AM · 1 replies · solved · Question

Vehicle: 2016 Subaru WRX Base

What's up, WRX owners?

I'm having a pretty annoying issue with my 2016 Subaru WRX. A few weeks ago, I hit a pretty nasty pothole with my front passenger wheel. Ever since then, the car has been consistently pulling to the right. I have to constantly correct the steering wheel to keep it going straight.

To make matters worse, I just noticed that my front passenger tire is showing significantly more wear on the outer edge compared to the other tires. This happened pretty quickly after hitting the pothole. I'm thinking it's an alignment issue, but could something else be bent or broken? I'm worried about further tire damage and potential safety problems.

Any ideas on what specific suspension components might be affected by a hard hit like that? What's the best way to get this diagnosed and fixed?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 2:15 AM

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ClearTheCode admin answer:

Hitting a significant pothole can definitely wreak havoc on a vehicle's suspension and steering components, and the symptoms you're describing with your 2016 Subaru WRX – pulling to one side and uneven tire wear – are classic indicators of damage.

  1. Diagnosis:

    • Alignment Check: The first and most crucial step is a professional four-wheel alignment check. This will measure camber, caster, and toe angles for all wheels. The results will clearly show if any of these angles are out of specification, particularly on the front passenger side.
    • Visual Inspection: A thorough visual inspection by a mechanic is essential. They will look for:
      • Bent Control Arms: The lower or upper control arms can bend from impact.
      • Damaged Tie Rods: Inner or outer tie rod ends can be bent or have excessive play.
      • Bent Strut/Shock Assembly: The strut housing itself can bend, affecting camber.
      • Damaged Wheel Bearing/Hub: While less likely to cause pulling, severe impact can damage these, leading to noise and wheel play.
      • Damaged Wheel: The wheel itself could be bent or cracked, which can affect alignment and cause vibrations.
      • Tire Damage: Beyond wear, inspect the tire for bulges or internal damage.

  2. Causes:

    • Misalignment: The impact likely knocked your front passenger wheel's alignment angles (especially toe and camber) out of specification, causing the pull and uneven tire wear. Toe is particularly sensitive to pulling and rapid tire wear.
    • Bent Suspension Components: The force of the pothole can bend various metal components of the suspension system, such as control arms, tie rods, or even the strut, making it impossible to achieve proper alignment without replacement.
    • Damaged Steering Rack (Rare): In very severe impacts, the steering rack itself could be damaged, though this is less common than component bending.

  3. When to See a Shop:

    • Immediately: Driving with severe misalignment will rapidly wear out your tires (as you've observed) and can compromise the vehicle's handling and safety, especially during emergency maneuvers. Get it to a reputable shop specializing in alignments and suspension work as soon as possible.
    • Professional Repair: A skilled technician will perform the alignment check, identify any bent or damaged components, replace them, and then perform a precise four-wheel alignment. Ensure they use a modern alignment machine and provide you with a printout of the before and after specifications.
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