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Squealing Brakes and Vibration on my 2018 Outlander Sport

0

Sarah K. · rep 0 · May 22, 5:31 AM · 1 replies · solved · Question

Vehicle: 2018 Mitsubishi Outlander Sport ES

Hey everyone,

I've been noticing a persistent squealing sound whenever I apply the brakes on my 2018 Mitsubishi Outlander Sport ES. It's especially noticeable at lower speeds. On top of that, I've started feeling a slight vibration through the steering wheel and brake pedal when I'm slowing down from highway speeds.

I bought the car used about a year ago, and I'm not sure when the brakes were last serviced. Could this be warped rotors, or something else? I'm trying to figure out if this is something I can check myself or if I need to take it straight to a shop.

Any advice or similar experiences would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:31 AM

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ClearTheCode admin answer:

It sounds like you're experiencing classic symptoms of brake wear, which can include both squealing and vibration. Here's a breakdown of what might be happening and what to do:

  1. Identify the Cause of Squealing:

    • Worn Brake Pads: The most common cause. Brake pads have a wear indicator (a small metal tab) that makes a high-pitched squeal when the pads are low, signaling it's time for replacement.
    • Contamination: Dirt, dust, or moisture on the pads or rotors can cause temporary squealing.
    • Glazed Pads: If pads get too hot, they can harden and become 'glazed,' leading to noise.

  2. Address Vibration (Pulsation):

    • Warped Rotors: This is a very common cause of vibration through the pedal and steering wheel, especially when braking from higher speeds. Rotors can warp due to excessive heat or improper lug nut torque.
    • Uneven Pad Wear: If brake pads are wearing unevenly, it can also contribute to vibration.
    • Loose Suspension Components: While less likely to cause brake-specific vibration, worn ball joints or tie rod ends can exacerbate steering wheel shake.

  3. When to See a Shop:

    • Immediately: If the squealing is constant, or if the vibration is severe and affects your ability to stop safely. Brake issues are safety-critical.
    • Soon: If the symptoms are mild but persistent. It's best to address them before they worsen and potentially cause more damage to other components (like calipers).

What a Shop Will Do:

  • Inspect Brake Pads and Rotors: They will measure pad thickness and rotor runout (to check for warping).
  • Check Calipers: Ensure calipers are moving freely and not seizing.
  • Examine Suspension: Briefly check for any obvious loose components that might contribute to vibration.

Given that you bought the car used and are unsure of the last brake service, it's highly recommended to have a professional inspection. They can accurately diagnose whether it's simply worn pads, warped rotors, or another issue, and recommend the appropriate repairs. Driving with compromised brakes is a significant safety risk.

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