I bled the brakes and the master cylinder at least 10 times.
2003 silverado service brake system pedal goes to floor.
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.
I took the truck on a 30 minute drive the other day and on the way back home my brake light came on and the pedal goes almost to the floor.
2003 chevy silverado 4x4 4 wheel disc brakes abs 5 3l.
One of the reasons is the brake system loses pressure from an external brake fluid leak.
Technically there are two main causes that would make the brake pedal sink all the way to the floor.
Reasons your brake pedal goes to the floor.
But worry not this maintenance guide will give you the steps to troubleshoot and fix this issue of brake pedal goes to floor in under 45 minutes.
I looked all around the truck for leaks from brake fluid there is none and the brake resiviour sorry for the spelling is still full.
The brake system in your car is a sealed hydraulic system and relies on close tolerances between the brake pads and rotors or the brake shoes and drums.
I have a braking issue.
When applying the brakes pedal goes all the way to the floor and cannot stop very well.
1 leak from brake line or brake caliper.
Until and unless your brakes are working fine there dose not seem to be a real trouble but the uncomfortable feel of brakes being floored might be due to air leak in to the braking system or the brake shoes might be poorly adjusted or the pressure checking valve might not be working properly.
I can still stop.
So i ruled out the master cylinder since i just replaced it last week.
If your brake pedal sinks all the way to the floor when you press there can be many possible culprits for this problem.
The leak may coming from a brake line or one of the brake calipers.
Also if a leak occurs in the system it will be unable to build pressure due to the lack of fluid causing the brake peddle to travel to the floor which can be followed by the brake system.