In a perfect world, our cars would run smoothly and braking would be an effortless task. Unfortunately, this is not always the case. Have you ever experienced your car jerking while applying the brakes? Not only can it be an alarming experience, but it also leaves us wondering what might be causing the issue.
This article will explore some of the most common reasons behind your car’s jerking when you brake.
Worn or Damaged Brake Pads
One of the main components responsible for stopping your car safely are the brake pads. Over time, these pads can wear down or become damaged, which may lead to a jerking sensation during braking.
The uneven surface of worn brake pads may cause them to grip the rotors inconsistently, leading to a jerky stop. If you suspect that your brake pads are causing the problem, have them inspected and replaced if necessary.
Contaminated Brake Pads
Sometimes, brake pads can become contaminated with oil, grease, or other debris. This contamination may interfere with the frictional properties of the brake pads and result in poor braking performance. A thorough cleaning of the brake pads and rotors may resolve this issue.
Warped Rotors
Your car’s rotors are another critical component in the braking system. As you apply the brakes, the brake pads clamp onto the rotors, which create the resistance needed to slow the vehicle down.
Over time, heat generated by braking can cause the rotors to warp or become uneven. Warped or uneven rotors can cause the brake pads to make inconsistent contact, resulting in a jerking motion as you brake. To fix this issue, you may need to replace or resurface the affected rotors.
Signs of Warped Rotors
- Vibration in the brake pedal when applying the brakes
- Pulsating sensation in the steering wheel while braking
- Noise coming from the brakes, such as squeaking or grinding
Problems with Brake Calipers
Brake calipers are responsible for holding and compressing the brake pads against the rotor. If a brake caliper is not functioning properly, it can cause an uneven distribution of pressure between the brake pads and rotors. This uneven distribution may result in your car jerking when braking. Some common issues that can affect brake calipers include:
Sticking Brake Calipers
If a brake caliper becomes stuck or seized, it will not be able to release the brake pads fully from the rotor’s surface. This constant contact can create uneven wear on the brake pad and rotor, leading to a jerky braking experience. In this case, it’s essential to repair or replace the affected caliper promptly to prevent further damage.
Uneven Wear on Brake Calipers
Over time, the components within the brake calipers may wear down unevenly. As a result, one side of the caliper may apply more force than the other, causing the brake pads to make inconsistent contact with the rotor. This can lead to a feeling of jerking when braking. Regular maintenance and inspection can help identify any uneven wear on the brake calipers and address the issue before it leads to significant problems.
Issues with Suspension System
While not directly related to the braking system, problems with your car’s suspension can also cause a jerking sensation while applying the brakes. If any part of the suspension system is worn out or damaged, it can affect how the vehicle handles braking forces, resulting in an unstable or jerky stop. Some common suspension issues that may lead to this problem include:
- Worn-out shock absorbers or struts
- Damaged or loose bushings
- Faulty ball joints or tie rod ends
If you suspect a suspension issue is causing your car to jerk when braking, consult a qualified mechanic for inspection and repair.
Tire Problems
Last but not least, unevenly worn or improperly balanced tires can cause a car to jerk when braking. If one tire has more tread than the others or if they are out of balance, it can lead to uneven traction among the wheels, which may result in a jerking motion during braking. Regular tire rotation and balancing can help prevent these issues and ensure smooth, even braking.
Various factors can cause your car to jerk when you apply the brakes. By understanding the potential causes and addressing them promptly, you will be able to maintain your vehicle’s safety and performance on the road.
About the author
Marcus Brown is editor-in-chief of The FatMech and is a mechanic with ten years' experience based in London, UK. Having worked for major dealerships for many years, Marcus now works for a local independent garage and has experience working on nearly every make and model of car. Marcus also has a passion for writing and teaching, which is where the idea for The FatMech came from. In his spare time, Marcus enjoys playing golf, doing home renovations and gardening. He lives just outside London with his wife and son.