Reasons for Knocking Sounds from Your Lexus’ Brake Actuator from the Experts in Scottsdale

by techplusaadmin March 28, 2020

The brake actuator is an important part of the braking system in your Lexus. If it fails, the consequences can be catastrophic. In past years, failing brake actuators have been one of the more common problems in Lexus vehicles, so you should be extra vigilant in the maintenance of your vehicle’s braking system as well as keep an eye out for any of the tell-tale signs that the brake actuator needs to be replaced.

In this article, we will walk you through the purpose of the brake actuator and how it works, discuss the warning signs that it is failing, and give you advice on where to go for repairs.

All About the Brake Actuator

The brake actuator is located in your car’s rear brake assembly. It’s a relay system that consists of many parts: the pump motor, the accumulator, the wheel cylinder, the linear solenoid valve, and the master cylinder pressure sensors. Simply put, the brake actuator’s primary job is to ensure that your brakes are working alongside your Lexus’ ABS system. As pressure is applied to the brake pedal, the brake actuator pushes against the brake drum, which ultimately causes the vehicle to slow down or come to a complete stop.

When a brake actuator fails, it is usually because of a leak in the actuator itself. Because the brake actuator is pressurized, a leak will decrease the amount of pressure in the actuator, which will cause an overall decrease in brake compression.

The brake actuator is so important to the proper function of your Lexus. If the brake actuator fails, not only might there be irreparable damage to your car, but it is also incredibly dangerous to both you and your passengers.

Warning Signs to Watch For

As the responsible owner of a Lexus, which is known for its revolutionary design and high performance, you should always try to be aware of any of the following warning signs that might indicate that there is a problem with your car’s brake actuator:

Dashboard Lights

If there is an issue with the brake actuator, one or more dashboard lights may turn on to signal that something is wrong. A few of these lights to look out for are the ABS light, the check brake system light, and the check VSC light. However, because the problem may have nothing to do with the brake actuator itself, it’s important to have your car inspected so that the problem can be properly diagnosed and fixed.

Strange Sounds

It is never good to have strange sounds coming from your vehicle. Fortunately, unusual noises are a pretty easy warning sign to notice. If while driving, you hear a hissing sound whenever you press on the brake pedal, this is probably due to a leak in the brake actuator. Other noises to keep an ear out for are knocking or clicking sounds, which could be caused by a pressure leak in the actual brake system.

Stiff Brake Pedal

If you begin to notice that the brake pedal is becoming harder and harder to press, then this might mean that the brake actuator is failing and will need to be replaced.

Delayed Braking

Conversely, if you’re pressing on the brake pedal, but it is taking longer than normal for your Lexus to slow down or come to a full stop, this may be because of a loss of pressure in the brake system due to a faulty actuator.

Our Experts Can Help

At Tech Plus Automotive, we are proud to be Scottsdale’s #1 Independent European auto repair shop since 2003. Our technicians are ASE certified and trained to specialize in European vehicles. If you notice any of the warning signs of a failing brake actuator, don’t waste time worrying about what might happen. Whether you own a Lexus or any other European luxury model, we will diagnose the issue and repair it so that you and your passengers can drive safely.

We are conveniently located for drivers in and around the Phoenix, Paradise Valley, McCormick Ranch, and Scottsdale, AZ areas. Tech Plus Automotive is dedicated to providing quality service at an affordable price. Call us and set up an appointment today for all of your maintenance and repair needs.