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Brake pedal is lower than usual Inspection Service

Brakes-Symptoms

Your brake pedal exists so that you can control the brakes and slow your car down. The pedal itself employs a class-two lever, which gives you leverage when you depress the pedal, making it easier to apply enough force to slow or stop the car. Sometimes, however, the brake pedal can get soft and fall to a lower level than usual.

How this system works:

A hydraulic brake system relies on brake fluid to transfer the pressure from the brake pedal to the brake pads. When you depress the pedal it puts pressure on the master cylinder, which opens the door for brake fluid to flow into the compensating port, which increases the pressure in the hydraulic system. The master cylinder then applies pressure to the brake pads, and when your foot comes off the pedal, the system is reversed.

Common reasons for this to happen:

Air in the hydraulic system:

The hydraulic system operates without air, but over time air can creep into the system. Since the purpose of the fluid in the brake system is to cause pressure, the air eliminates some of the much-needed pressure. This primarily happens as your brake pads wear: the more they wear, the more fluid is needed to apply the proper braking power. When extra fluid is used, air fills the void, and the pressure decreases, which lowers the pedal.

Bad brake lines:

Brake lines are made of both steel and rubber. Hard steel brake lines allow the brake fluid from the components, such as the master cylinder and proportioning valve, to travel to the disc brake calipers and wheel cylinders. The rubber brake line is used at each wheel to connect the steel brake lines to the calipers and wheel cylinders. Over time, steel brake lines can rust and corrode which can make these lines leak. This rust can also contaminate the brake fluid, which can cause tearing of rubber seals in the master cylinder and brake calipers. The rubber brake lines may also deteriorate due to moisture and heat causing them to fail or collapse internally. Any of these symptoms will create leaks in the hydraulic brake system and give you a soft or spongy pedal.

Master cylinder leak:

If the master cylinder is leaking, the pressure in your braking system will dissipate rapidly. As the pressure in the system goes, so too does the pressure in the pedal.

Rear brakes need adjusting:

When rear drum brakes wear, the distance between the shoes and the drums begins to increase. This gap will then be made up by the brake pedal. Some vehicles come with auto-adjusting drum brakes, but many need manual adjusting. If the drums are neglected, the gap will expand, and the pedal will sink into the floor as all the pressure is transferred to the rear brakes.

Clogged proportioning valve:

The proportioning valve serves to regulate the amount of pressure that the brake fluid is putting on the rear brakes. When the valve is clogged, too much pressure is applied to the brakes. The outputted pressure to the brakes comes at the expense of the pedal.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the brake system issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will likely bleed your brake fluid so that any and all air can get out. After doing that and replacing the fluid, they’ll check your brakes to see if they need adjusting. If the issue is still not resolved, they’ll dig deeper into the master cylinder and proportioning valve until they find the culprit.

How important is this service?

Without proper brake pressure, it is not safe to drive your vehicle. If you find that your brake pedal has sunk to the floor, book a mechanic to diagnose the issue as soon as possible.


Recent Brake pedal is lower than usual Inspection reviews

Excellent Rating

(1,689)

Rating Summary
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1,554
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Mike

26 years of experience
145 reviews
Mike
26 years of experience
Chevrolet Malibu L4-2.4L - Brakes, Steering and Suspension Inspection - Southgate, Michigan
Extremely friendly and knowledgeable. He was in and out and I got a thorough assessment of my car. Highly recommended

David

5 years of experience
2 reviews
David
5 years of experience
Chrysler 300 V8-5.7L - Brakes, Steering and Suspension Inspection - Sugar Land, Texas
David is great! My car had issues with its suspension so I requested my upper control arm be replaced thinking I knew what was wrong. He came out and saw my upper was fine but it was my lower and sway bar that needed replaced. He returned the part and returned the next day with the right parts and got it done. Rides good now!

Matthew

33 years of experience
1222 reviews
Matthew
33 years of experience
Lexus RX350 V6-3.5L - Brakes, Steering and Suspension Inspection - Newport News, Virginia
Matt is a trustworthy and honest young man and He is very easy to talk to and ask questions and he is thorough to answer me. I know God has answered my prayers through him today! Thank you Matt and Kevin at Ca Appt Office each time I've had pleasure of speaking to you both!! I will look forward to seeing Matt again tomorrow for the Brake jobs.

Luis

4 years of experience
130 reviews
Luis
4 years of experience
Volkswagen Beetle L4-1.9L Turbo Diesel - Brakes, Steering and Suspension Inspection - Chesterfield, Virginia
Took the time to show me the parts that he had removed and the level that they were at. Took the car for a test drive and found an issue that my wife has been dealing with for a long time in regards to her brakes. The brake booster wire was frayed and needed to be replace. No wasted motion in his steps in replacing the brakes and rotors. I will definitely want him to do the work on my other vehicles in the future.

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