The failing bearing allows the hub to move around effectively pushing the brake pads back into the caliper as far as it can.
Bad wheel bearing causing brake pedal to go to floor.
This increase in air gap can cause the pedal to sink to the floor.
I would not focus on air in the system which would give a spongy pedal that i wouldn t expect to go away.
No brake pressure pedal goes to floor.
Those who slam on their brakes often or drive in stop andgo traffic may experience this problem faster than someone who doesn t stop as often.
If they don t this can cause brake overheating as well as.
The third reason why your brake pedal may go down to the floor is because your brake booster is failing or is bad.
If under moderate to stiff braking pressure you can feel the brake pedal shake under your foot this is a good indication that what you have is a warped brake rotor or other brake related issues.
Brake pedal goes to floor when car is running maintenance nonperformance.
The final reason for a brake pedal to go to the floor is failing axle bearing.
If there is a fluid leak this would not be the problem.
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.
Wheel bearing disc brakes 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.
The brake rotor must be either replaced or re lathed to make it perfectly flat.
Worn tie rod ends a bad wheel bearing or upper strut bearing and even a bad front strut could cause it.
Another uncommon cause of a soft pedal and long travel is a bad wheel bearing which is unrelated to the brakes except for being in the vicinity of the rotors.
While i was limping it off the road all the usual abs traction lights came on but the brake pedal also got real soft as in falls almost to the floor before it finds a hard bottom end so to speak.
A common example is you might find the brake pedal goes to floor but still works.
Axle bearings hold the brake rotor true without play while they both rotate.
Well i had a wheel bearing go out on me.
More likely in my mind would be pad knock off due to slack wheel bearings or bad seals on the master cylinder or slave cylinder pistons.
Your brakes should let go immediately as you take your foot off the pedal.
If your brake pedal sinks all the way to the floor when you press there can be many possible culprits for this problem.
Brake pedal vibration.