Abs light goes on occasionally 2 year problem no mechanic can diagnose.
Brake pedal goes to floor after bleeding the brakes many times.
Brake pedal goes to floor when engine is running good hard pedal with engine off after 4 or 5 pumps but when engine is started pedal slowly goes to floor.
1 leak from brake line or brake caliper one of the reasons is the brake system loses pressure from an external brake fluid leak.
Posted by arbucklesrul on apr 21 2012.
Brake lines brake calipers check.
Soft brakes brake pedal goes to floor replaced master cylinder twice and bleed lines many times.
Bled 6 8 oz of flu read more.
Can somebody shed some light on this problem.
The diagnostic check on the brake booster appears normal except that when i start the engine with my foot on the brake the pedal goes almost to the floor with a very mushy pedal.
The first thought that comes to anyone s mind when brake pedal goes to the floor when engine running is that there is a leakage in any of the brake lines that outflow the pressure in the brake system.
I have replaced rear brake pads and rotors on my 2010 highlander and right after i went to take the car for the test drive the brake pedal goes all the way to the floor.
Reasons your brake pedal goes to the floor technically there are two main causes that would make the brake pedal sink all the way to the floor.
Since then i have bled the brakes many times.
If it is full capacity then there is no leak.
The brake pedal goes all the way to floor.
If you pump the pedal and it goes firm but slowly drops while you hold it you may have an additional leak somewhere or you could have a bad master cylinder.
I just wonder if the abs unit needs to be bled with an obd reader or if it could be a vacuum problem.
The brake booster holds vacuum just fine so again i am lost.
99 gmc serria 4wd 4 8 vortex.
2005 3500 sprinter van.
I bled the brakes and the master cylinder at least 10 times.
There is no leak anywhere.
Brake pedal goes to floor after bleeding the brakes many times a wheel cylinder went out over a year ago.
Replaced the master read more.
During normal use brake fluid can become contaminated and the master cylinder wears internally but only for the length of your brake pedal travel.
The first thing you require is to check the brake fluid level.