Subaru Impreza Shakes When Braking

Common Causes of Shaking in Your Subaru Impreza During Braking and How to Resolve Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
55% chance it's the
Brake Rotor
0%
20% chance it's the
Brake Pad
0%
10% chance it's the
Old Brake Fluid
0%
15% chance it's
Something else
The most common reasons a Subaru Impreza shakes when braking are bad brake rotors, bad brake pads, or a bad wheel bearing.
  • Brake Rotor: A warped or worn brake rotor can cause vibrations during braking and reduced stopping power.
  • Brake Pad: A worn or damaged brake pad can lead to reduced braking efficiency and increased stopping distances.
  • Old Brake Fluid: Old brake fluid can absorb moisture over time, leading to reduced braking performance and potential corrosion within the brake system.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

Troubleshooting Shaking When Braking in a Subaru Impreza

When troubleshooting shaking when braking in a Subaru Impreza, it's essential to adopt a systematic diagnostic approach. Start by inspecting the brake rotors, as they are often the primary culprit behind vibrations during braking. Look for signs of warping or uneven wear, which can be identified by checking for grooves or discoloration on the rotor surface. Next, examine the brake pads for wear; if they are thin or the warning light is illuminated, replacing them may resolve the issue. Additionally, assess the wheel bearings for any play or noise, as a failing bearing can contribute to shaking. Don’t overlook the suspension and steering components; ensure that all parts are secure and in good condition, as loose or worn components can exacerbate vibrations. If the shaking persists, consider the condition of your tires and alignment, as these factors can also influence braking performance. By following this methodical approach, you can effectively diagnose and address the shaking issue, ensuring a safer driving experience in your Subaru Impreza.

What Causes Shaking When Braking in a Subaru Impreza?

When experiencing shaking while braking in a Subaru Impreza, it's essential to understand the common problems that could be causing this issue. One of the primary culprits is often the brake rotors; if they are warped or damaged, they can lead to noticeable vibrations when the brakes are applied. Additionally, worn-out brake pads can contribute to this problem, especially if they trigger warning lights indicating they need replacement. Another potential cause is a seized front caliper, which can cause the brake pads to rub excessively, generating heat and resulting in shaking. Furthermore, issues with suspension components such as worn tie rods or ball joints can create unwanted movement, leading to vibrations felt through the steering wheel or brake pedal. Other factors, including a kinked brake hose or improper wheel installation, can also exacerbate the shaking. Regular maintenance and timely inspections are crucial to identifying and addressing these issues before they escalate, ensuring a smoother and safer driving experience.

Why is My Subaru Impreza Shaking When I Brake?

When your Subaru Impreza shakes while braking, it is crucial to address the issue without delay, as neglecting it can lead to serious safety risks and further vehicle damage. The shaking is often a sign of underlying problems such as worn brake rotors, which can compromise your braking efficiency and increase stopping distances. Additionally, bad brake pads or a malfunctioning wheel bearing can exacerbate the issue, leading to uneven wear and potential failure of the braking system. If the steering wheel vibrates during braking, it may indicate that the rotors are warped, which not only affects handling but can also lead to more extensive repairs if left unchecked. Other components like tie rods and ball joints may also contribute to the shaking, and any misalignment or wear in these parts can affect your vehicle's stability. Furthermore, issues such as a kinked brake hose or improperly installed wheels can create dangerous driving conditions. Therefore, it is essential to diagnose and resolve these problems promptly to ensure a safe and smooth driving experience in your Subaru Impreza.

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