It can get moisture in it. If you hit the brakes a few times and the pedal hardens up, that indicates some air is trapped in the lines or that the fluid is bad.
Brake shoes are only found on drum brake equipped vehicles. There will never be a drum brake on front of a modern vehicle. A shoe that is worn down too far will cause the pedal to sink closer to the floor than it normally would.
This would be something to look at if there was no fluid leak detected. Tip: If you do replace the shoes, jack up the vehicle and pull both drums off.
You can use the other wheel as a reference for spring placement. A good pair of needle nose pliers can help when doing this job. This is not as likely as the items listed above, but a bad wheel bearing can cause the brake pedal to go to the floor as the rotor has different geometry in relation to the caliper.
This increase in air gap can cause the pedal to sink to the floor. If there is a fluid leak this would not be the problem. You should hear and feel a wheel bearing that is this bad, just keep that in mind. There are two ways to do this. You can get a one man bleeding tool, or you can use a friend to pump the brakes while you do each wheel. With enough time and patience, you can find the cause yourself.
A weak brake pedal is not something you want to trust with your life. Fluid Leak A brake fluid leak is one of the most common reasons that the brake pedal would go to the floor. Diagnosis Fill the brake reservoir back up with the appropriate brake fluid for your vehicle.
Look behind all four wheels. You should see fluid on the ground by one of them. Jack up the vehicle and remove the wheel in question.
Always use a jack stand for safety reasons. If it is a drum brake look at the wheel cylinder. This is a very common point of brake failure. Replace as needed. Bleed the Brake System. Bad Master Cylinder Typical Master Cylinder The master cylinder is the part of the braking system that presses the fluid into the caliper or brake shoes.
Diagnosis Locate the master cylinder. Inspect the master cylinder to see if there is fluid leaking from it. Replace the master cylinder if needed. Seller Report item - opens in a new window or tab. Seller assumes all responsibility for this listing. Item specifics. United States. Triple Square Socket. Manufacturer Part Number:. Does Not Apply. Private Label. Shipping and handling. This item will ship to Germany , but the seller has not specified shipping options.
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