Technically there are two main causes that would make the brake pedal sink all the way to the floor.
Ford ranger brakes go to floor.
This problem typically occurs after.
Pull wheels of and check pads calipers disc lines for wear leaks if happy check power booster operation check for leak where master cylinder connects to booster also where brake lines connect to master mine was leaking where master joins booster solution 36 seal kit for master cylinder from brake place this.
If master cylinder is bad.
Pedal will go to floor running or not.
The final reason for a brake pedal to go to the floor is failing axle bearing.
When the brake pedal goes down at a standing stop it is the master cylinder losing vacuum replace.
One of the reasons is the brake system loses pressure from an external brake fluid leak.
If you hit your ford f 150 or super duty s brake pedal and it goes to the floor stop the vehicle and don t drive it until you find a solution to this problem.
After checking the condition of the brakes whic read more.
Brake pedal goes to floor does not stop 2000 ford ranger supercab.
Want answer 0.
The leak may coming from a brake line or one of the brake calipers on your vehicle.
Hope this helps you.
Axle bearings hold the brake rotor true without play while they both rotate.
1 leak from brake line or brake caliper.
This article applies to the ford f 150 2004 2014 and f 250 super duty 2005 2014.
I have a 97 ford ranger 4x4 with rabs the problem started when the brakes all of a sudden started to lose pressure at the pedal slowly go to the floor.