Overcoming the Obstacle of Brakes Sinking to the Floor A Comprehensive Guidebook

This seems to be a common problem but yet there are very few answers on the internet forums. Brake Pedal Goes To The Floor When The Engine ... Is your brake pedal sinking all the way to the floor when you press it? Does it feel softer than normal, or spongy? Yes, the pedal should drop when the engine is started and vacuum is supplied to the booster, but the pedal should not go all the way to the floor! Reasons for a brake pedal going to the floor. 1. Leaks. You say you have none. 2. Bad master cylinder. You say you replaced it. 3. Bad brake booster. 4. Air in ... My first guess would be a bad master cylinder, if you don't have an external leak somewhere and if the pedal doesn't begin to "firm up" after ... The only way fluid levels decreases is by worn brakes (taking more fluid to push worn pads further to make contact puts the fluid in the caliper ... It's not uncommon for the seals inside the Master Cylinder to get damaged if the brake pedal is depress or pushed ALL the way to the floor while ... Welcome to the SS Forums @Castros408 !! Brakes that go to the floor, on the first stroke, with no resistance will have me looking at everything ... Most common causes are leaking brake line or brake cylinder. Have someone press the brakes while you look under the truck for leaks. No leaks? This maintenance guide will give you the steps to troubleshoot and fix this issue of the brake pedal going to the floor in under 45 minutes.