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Understanding Brake Squeal & How to Address It

Brake squeal can occur with any brake pad, regardless of type, brand, or vehicle. It’s a common issue, but in most cases, it resolves itself over time.

Key Facts About Brake Squeal:

• It typically occurs within the first 200-500 miles of use and usually fades away afterward.
• The condition of your brake discs/rotors plays a significant role. A worn rotor with a lip or uneven surface can extend the time it takes for noise to disappear.
• For cast iron rotors with uneven wear, the ideal solution is to have them machined on a Pro Cut lathe . A skimmed rotor can be better than a brand-new one, as long as thickness minimums are maintained.
• There are different types of brake noise. "Creep Graunch" is a low noise heard when releasing the brake from a standstill (often worse in reverse), while more persistent squeal usually falls under the first point.

How to Reduce or Eliminate Brake Squeal:

✔ Ensure your pads have noise shims—all EBC pads come with them.
✔ Allow proper bedding-in of the pads. If the noise persists after 500 miles, perform a few heavier brake applications in a safe environment.
✔ Check the condition of your calipers. Brake calipers should be serviced or replaced every 5-7 years. Corroded caliper sliders and pins can cause pad drag, leading to overheating and squeal.

By following these steps, you can minimize brake noise and ensure optimal braking performance.

We also sell anti-squeal shims HERE

Understanding Brake Vibration & Runout Issues

If sport rotors are not checked for runout, a clicking noise may occur once per wheel revolution, even without applying the brakes. If you experience this—especially soon after installation—return to the service shop and have the rotors checked for runout.

Runout tolerance recommendations vary:

• 0.001 to 0.002 inches for most European cars
• 0.003 to 0.006 inches for larger U.S. trucks and SUVs

Exceeding these limits is unacceptable, as it will lead to brake vibration after approximately 3,000 to 4,000 miles. This is not a warranty issue but rather a result of improper installation.

Common Causes of Excess Runout:

• Mounting rotors on dirty, rusty, or corroded hubs
• Excessive use of mounting grease
• Incorrect rotor installation and improper tightening procedures

A skilled installer will hand-tighten the rotor studs in a diagonal pattern, gradually increasing torque by hand before performing a final tightening with a torque wrench. Ideally, no air guns should be used—these tools are often misused, leading to improper installation.

Why Does Vibration Occur After 3,000-4,000 Miles?

Many people ask why brake vibration appears at this mileage and how EBC can estimate it so precisely. The reason is that the issue develops off-brake—while driving without applying the brakes. Excess runout causes the brake pads to lightly "kiss" the rotor with each wheel revolution, gradually wearing a microscopic thin spot into the rotor. This results in Disc Thickness Variation (DTV), which leads to brake pulsation.

How to Fix Brake Vibration

To resolve the issue, rotors will need to be machined at a brake shop or replaced. EBC sport grooved rotors can be resurfaced effectively using standard AAMCO brake lathes, but if they are too worn or scored, replacement is necessary. New brake pads will always be required when replacing or machining rotors.

Before heading to a shop, identify whether the vibration is coming from the front or rear to avoid unnecessary brake work:

• Vibration felt through the steering wheel usually indicates a front brake issue.
• Vibration felt through the car’s body or seat often points to a rear brake issue.

Best Brake Pads to Prevent or Reduce Vibration

High-quality brake pads with high thermal conductivity help reduce the likelihood of vibration caused by DTV or thermal shock. Thermal shock is particularly common in European vehicles. All EBC brake pads are designed to minimize vibration, and EBC’s online catalog provides recommendations for the best options for each vehicle.

Get your discs skimmed HERE

Understanding Brake Dust & Choosing the Right Brake Pad

Some brake dust is unavoidable with any brake pad—completely eliminating it would lead to brake vibration. EBC does not claim to offer zero dust pads, only low-dust options. In some cases, dust levels may be similar to those of original equipment pads.

However, it’s important to note:

• Brake dust is more noticeable during the first 1,000 miles, especially if new pads were installed on partially worn rotors.
• Incorrect pad selection can also contribute to excessive dust.

For vehicles with over 200 horsepower or for drivers who engage in spirited driving, Green pads may not be the best choice. Red Ceramic pads, being slightly harder, handle higher speeds and loads better while producing less dust. If Green pads are overheating and carbonizing, upgrading to Red Ceramic is recommended.

For those looking for minimal dust, the best options are:
✔ Redstuff
✔ Greenstuff

While Yellow compounds provide exceptional braking performance, they produce dust levels comparable to standard OEM pads. If low dust is your priority, they may not be the best choice.