The final reason for a brake pedal to go to the floor is failing axle bearing.
2000 s10 brakes grab go to floor.
The leak may coming from a brake line or one of the brake calipers on your vehicle.
No brake fluid loss.
2000 blazer v6 4 3l.
See all problems of the 1997 chevrolet s10.
I really think you still have air in the lines.
After avoiding deer the brake petal would go to floor with no resistance.
2 brke lines.
1 leak from brake line or brake caliper.
Easy to skid tires.
So i ruled out the master cylinder since i just replaced it last week.
This problem typically occurs after.
One of the reasons is the brake system loses pressure from an external brake fluid leak.
I just bought a truck and the person that i got it off of say there was air in the line because he put in a new brake booster and master cylinder and hasnt bleed the brakes correctly.
Brake light is on.
The day before they worked perfectly fine and the next morning they went to the floor.
If the engine isn t started the brakes seem fine but after starting the engine they go to the floor.
I bled the brakes and the master cylinder at least 10 times.
I have a nice firm brake pedal when the car is not running as soon as i start the engine the pedal goes almost to floor.
If the pedal gets hard after adding fluid and pumping it several times with the car off then the master cylinder is still ok.
Axle bearings hold the brake rotor true without play while they both rotate.
Wihen i drive the truck the pedal goes all the way down and sometimes the brakes kicks up like the abs wants to kicks in but doesnt slow down the truck.
If the brake pedal goes all the way to the floor it s likely there is a leak somewhere after the master cylinder.
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.
You have to push hard to stop.
Technically there are two main causes that would make the brake pedal sink all the way to the floor.
Braking for deer at night experiencing total master cylinder failure ie brake petal going down to floor board after initial small resistance.
Brake goes to the floor before braking.
Well check the brake lines for leakage after adding brake fluid to the full mark.