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    Geobrakes Ltd is a Canada based Brakes parts company serving customers in North America since 5 years, with the specialization in supreme ceramic brakes pads and drilled and slottedrotors. Geobrakes is passionate about what we do and it shows in our products which are of high quality & durability.

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Symptoms of Bad Rotors – What Do Bad Rotors Look Like

October 2, 2023

Table of Contents

  • A little About the Brake Rotor
  • 09 Symptoms of Bad Rotors
  • Visual Comparison: Healthy
  • Conclusion
  • People Also Ask

Worried your brakes might be acting weird? You might need to check your brake rotors. If you feel your car shaking or pulsating when you brake, or if your car doesn’t stop as smoothly as usual, it could be a sign of bad rotors.
It might be time to inspect your rotors.

Learn the symptoms of bad rotors and what they look like can help you address potential safety hazards and costly repairs. In this detailed guide, we’ll explore the key indicators of bad rotors, helping you identify potential issues and take appropriate actions.

Key Takeaways: What you get in this concise guide?

straight line

  • Reveal common signs of bad rotors
  • Understand what bad rotors look like
  • Learn preventive measures to address rotor problems
  • One of the key indicators of bad rotors is experiencing vibrations and pulsations while braking. This can often be felt through the steering wheel or brake pedal. Additionally, if you notice increased stopping distance or a wobbling sensation when braking, these could be clear signs of rotor issues.

A little About the Brake Rotor

Ever wondered how your car stops? It’s all thanks to a special team of players, and one of them is the brake rotor. Imagine it like a round metal disc that spins with your wheels.

When you press the brake pedal, it’s like pushing a button that tells the brake pads to squeeze this disc. This creates friction, which is like a sticky force that slows your car down. It’s kind of like rubbing your hands together to stop them from spinning.

The brake rotor is super important because it provides a smooth surface for the pads to grip onto and create this friction. It’s also made of tough materials like cast iron so it can handle the heat that all this stopping creates.

bad Rusty brake rotors

Looking At Bad Rotors: What Do They Look Like?

Worn-out brake rotors can show some telltale signs. Look for things like:

  1. Deep grooves or scratches on the surface of the rotor.
  2. Uneven wear, where some parts of the rotor are thinner than others.
  3. A rough or bumpy feeling when you rub your finger across the rotor.

Source: ExpertVillage Leaf Group

If you see any of these, it’s a good idea to get your brakes checked by a mechanic.

09 Symptoms of Bad Rotors

  1. Vibrations or pulsations in the steering wheel:

    When you notice vibrations or pulsations in the steering wheel, it may indicate rust on the brake rotors or imbalances due to overheating. To address this, have your rotors evaluated by a trusted mechanic to determine if repair or replacement is necessary. If caught early, it may be possible to “turn” (resurface/machine) the rotors to resolve the issue. Ignoring these symptoms can lead to unsafe rotor thickness, compromising your braking system.

  2. High-pitched squealing noise when braking

    A high-pitched squealing sound when applying the brake pedal could signal damage, brake dust buildup, or uneven surfaces on the rotors. Worn rotors develop uneven surfaces and edges, resulting in reduced brake efficiency. Prompt inspection and maintenance are essential to avoid potential safety hazards.

  3. Steering wheel shaking

    Failure of the front brake rotors can manifest as shaking in the steering wheel. Rust or overheating-induced imbalances may be the underlying causes. If your steering wheel shakes when stopping, it’s crucial to have your front brake rotors checked.

  4. Brake pedal pulsing

    Rust or uneven surfaces on the brake rotors can cause the brake pedal to pulse when applied. Address the issue promptly to ensure optimal braking performance and safety.

  5. Longer stopping distance

    Worn brake rotors create uneven surfaces, reducing the brake pads’ braking surface and causing your vehicle to take longer to stop. Addressing this issue is crucial for maintaining safe driving conditions.

  6. Loud bangs while braking

    The presence of loud bangs while braking may indicate a cracked brake rotor. Immediate replacement is necessary to prevent loss of brake function and potential accidents.

  7. Large edge on the outer part of the brake rotor

    Comparing the edge of the brake rotor to a new one can help identify excessive wear. If the edge appears larger than it should be, it may be a sign that the brake rotor is worn down and requires replacement.

  8. Scratch marks on the rotor

    Excessive scratch marks on the brake rotor, especially deep ones, signal the need for replacement. Stones caught between the brake pad and the rotor can cause significant scratch marks and unusual noises while braking, necessitating immediate attention and maintenance.

  9. Brake Fade:

    Brake fade occurs when your brakes lose their stopping power, especially after prolonged or aggressive braking. Bad rotors can contribute to brake fade because they may not dissipate heat efficiently, leading to reduced braking performance.

If you suspect any symptoms of bad rotors in your vehicle, don’t delay. Contact a certified mechanic for a thorough inspection today to ensure your safety on the road.

Concerned about your Rotors?

Click here to browse our Rotors, and ensure your vehicle’s safety today

Visual Comparison: Healthy

To understand the condition of your rotors better, let’s visually compare healthy new rotors to bad rotors:

Healthy Rotors:

  • Smooth and Even Surface
    Healthy rotors exhibit a smooth and even surface across the entire rotor face.
  • No Deep Grooves or Scoring
    There should be no deep grooves, scoring, or visible damage on the rotor’s surface.
  • Uniform Thickness
    Healthy rotors maintain uniform thickness across the rotor, with no irregularities.
  • Minimal Rust or Corrosion
    Healthy rotors should have minimal to no visible rust or corrosion, especially on the braking surface.

Conclusion

Your vehicle’s brake rotors are fundamental to your safety on the road. Recognizing the symptoms of bad rotors, such as vibrations, noises, and reduced braking performance, is essential for maintaining your vehicle’s safety and reliability. Additionally, visually inspecting your rotors for signs of wear, scoring, or grooving can help you determine when it’s time for a replacement.

If you suspect that your vehicle’s rotors are in poor condition, it’s crucial to consult a qualified mechanic or automotive professional. They can assess the extent of the damage and recommend the appropriate course of action, whether it’s resurfacing or replacing the rotors. Regular brake maintenance and prompt rotor replacement when needed are essential for safe and efficient braking. Your safety and the safety of others on the road depend on it.

People Also Ask

How Often Should Brake Rotors Be Replaced?

Brake rotor lifespan varies (50,000-100,000 km) depending on driving habits, terrain, vehicle type, and material. Regularly inspect for wear and consult your manual or a mechanic for specific recommendations.

How do you visually tell if rotors are bad?

One of the most obvious ways to check when your rotors need to be replaced is through visible cracks. If you see a crack, it’s time to replace your rotor. However, in certain cases, small hairline cracks are normal if you race your car, such as track days and timed performance events.

What does a bad rotor sound like?

If your rotors are damaged, you may notice unusual sounds such as squeaking, squealing, or grinding when you apply the brakes. Warped rotors typically produce a high-pitched squeak, while severely worn rotors may create a scraping noise. These sounds can serve as indicators of potential rotor issues and the need for inspection and maintenance.

What is the most common cause of rotor damage?

Repeated and aggressive braking can lead to the formation of warped brake rotors. Every instance of applying the brakes results in the brake pads gripping the rotor, generating friction and heat. If the rotor becomes excessively hot from this friction, it can lead to warping.

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