There are a variety of things that can cause a brake pedal to feel spongy, such as a defective master cylinder, a twisted hard line or incorrectly adjusted rear calipers. The only way to determine the cause is by taking a look at the braking system or taking the vehicle to a qualified mechanic.Know More
There is a proven way to test the brakes, possibly avoiding a costly trip to the shop. Under the car, at the center of the rear axle, is a rubber hose called a rear flex hose. Clamp that hose so no fluid is able to pass through. Once it's clamped, start the car and depress the brake pedal.
If the brakes are more solid with this hose clamped, chances are the problem lies behind this rear flex hose. This is common with vehicles that have drum brakes in the rear. To remedy the situation, the brakes will need to be bled thoroughly, removing all the air from the lines. If the vehicle has a parking brake, this should be engaged during the process.
If clamping the rear flex hose doesn't add substance to the brakes, the problem lies in front of the hose. Drivers can try adjusting the front caliper bleeders to where they are not pointing up. This causes air in the system, resulting in a spongy feel.
Unreliable brakes puts driver and passengers at risk and when there is a doubt about brake problems, a qualified mechanic should be consulted.Learn more about Car Parts & Maintenance
A hard brake pedal is most often caused by a lack of vacuum, but can also be caused by using the wrong hose, using a defective brake booster check valve or using a defective booster. It is also possible to run a combination valve where the valve is no longer centered, which can cause a hard pedal in a person's car.Full Answer >
The most common reason for a simultaneous appearance of both the ABS and brake light on the dashboard of a 1999 Chevrolet Silverado is a faulty Electronic Brake Control Module, or EBCM. Scanning the vehicle's computer system will reveal a definitive error code, which should read C0265 for EBCM issues.Full Answer >
A brake rotor, also called a brake disc, is the circular part that a car's brake pads grab onto when the brake pedal is pushed. Brake rotors help create the friction needed to stop a car's wheels from turning. They come in two varieties: drilled and slotted.Full Answer >
A brake switch, commonly called a brake light switch, is connected to the brake pedal of a vehicle. It turns the brake lights on when the brake is depressed and off when the pedal is released. A faulty brake switch will result in the brake lights not working, which may cause an accident.Full Answer >