I then bled all 4 wheels. Air can enter the system through the smallest hole, and you can end up with water in the system from condensation and other means. The kit is RC if that matters. it goes down slowly. Air can enter the system through the smallest hole, and you can end up with water in the system from condensation and other means. Reasons Your Brake Pedal Goes to the Floor. Too much heat turns the brake fluid into a thin liquid. Completely replaced all the brake fluid in the system with new brake fluid. One of the reasons is, the brake system loses pressure from an external brake fluid leak. sometimes when i am driving, i hit the brake, it goes all the way to the floor just to stop. Low Brake Fluid Level: Check your brake fluid.If it's low, top it off to the mark on the side of the reservoir. My mechanic and I have tried every type of bleeding and still the pedal goes straight to the floor with no resistance. the brake pedal does not do it all the time, just every once in a while. but today when i drove it the pedal started going down when i stop. it has been fine. Overheating the brake fluid can also cause a soft pedal. hello, i own a 2004 deville (DTS Model) and my problem is that my brake pedal goes to the floor during braking. When the engine is off I can press the bakes and they are really firm. Low Brake Fluid Level: Check your brake fluid.If it's low, top it off to the mark on the side of the reservoir. If your brake pedal sinks all the way to the floor when you press, there can be many possible culprits for this problem. Technically, there are two main causes that would make the brake pedal sink all the way to the floor. Open the hood of the vehicle and locate the brake fluid reservoir; it is usually sitting on top of the master cylinder. I just installed a 4 inch lift and added steel braided brake lines. So what happens if you push down on the brake pedal and it does goes all the way to the floor when the engine is running? 1) Leak from Brake Line or Brake Caliper. 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. But back to the question, I still say linkage but only if is is as loose as like flops down and stays there. my fluid is full so that isnt it. could a cadillac man get a few suggestions? If the brake pedal goes to the floor but still stops, first is to check brake fluid level. i bleed the system a while back and put new brake fluid in . thank you all in advance. there is no leak in the system and my brake level is full. But even with stomping on the gas pedal, it should not go all the way down to the floor. But if you crank it the pedal just goes to the floor. Contaminated Brake Fluid: Even though your brakes operate in a closed system, contaminants can still work their way into the works. It’s hard to stop … Go down maybe 1/4 of the way. it kinda scares me because i dont know when its going to do it. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. Contaminated Brake Fluid: Even though your brakes operate in a closed system, contaminants can still work their way into the works. There is no air coming out of any bleeder valve at any wheel. If the pedal sinks to the floor, there is certainly an issue in your braking system. A failing brake booster will not pressurize the brake fluid and cause the pedal to hit the floor, making the car hard to stop. While looking at it, rock the vehicle slightly in order to see where the fluid level is at. Brake pedal goes to the floor when I hit a bump 2 Answers. i have replaced rear pads, front pads were within spec as were all 4 rotors, brake fluid is always at level as well. Generally, this is the result of lots of hard braking or by riding the brakes. my brake pedal goes down to the floor when i stop.