Low brake fluid level.
Abs brake pedal goes to floor.
No brake pressure pedal goes to floor.
One of the signs that your brake system is not properly functioning is the brake pedal being soft or spongy which means the pedal goes down to the floor when pushed.
Check your brake fluid.
1 leak from brake line or brake caliper.
The final reason for a brake pedal to go to the floor is failing axle bearing.
A brake pedal that feels mushy spongy or that slowly sinks to the floor when depressed can be best described as brake pedal sink.
If your brake pedal sinks towards the floor when you are stopped while your foot is on the brake or does not feel as firm when the brakes are applied this could indicate you are having some sort of trouble with.
Technically there are two main causes that would make the brake pedal sink all the way to the floor.
If the abs unit activates but does not isolate the brake pedal the brake fluid will flow directly into the the accumulator a spring loaded brake fluid container for abs systems.
If it s low top it off to the mark on the side of the reservoir.
If this bearing goes bad it will allow the brake rotor it move back and fourth which pushes the caliper piston back into the caliper creating an air gap.
This lets the pedal sink to the floor.
If you step on the brake pedal and it has little to no pressure and goes all the way to the floor especially if you re getting no braking.
If you notice your brake pedal is soft you may wonder what part of the brake system causes this issue.
Reasons your brake pedal goes to the floor.
The leak may coming from a brake line or one of the brake calipers.
Axle bearings hold the brake rotor true without play while they both rotate.