I own a 95 Honda Civic, lately my brake pedal has gotten soft (what i mean is that it sinks, after i apply brakes) it is not a regular occurence but lately it is more frequent. i apply the brake and it sinks slowly, making the car move up a bit, there is no problems with my brakes or rotors i got those checked, and there is no shake while applying the brakes, so no warping of the rotor, the brakje just sinks and gets soft, what can it be, there is no sound attached to it, there is an occasional screech but it happens as applying and it doesnt always lead to the brake sinking. can someone help give a clue as to where to look?
2007-03-27 09:14:50 · 8 answers · asked by Guillermo T 2 in Cars & Transportation ➔ Maintenance & Repairs
Fluid leaking by O ring in master cylinder replace it.
2007-03-27 09:21:57 · answer #1 · answered by James B 5 · 0⤊ 0⤋
Your master cylinder is bypassing. When you press on the pedal you are actuating a piston in the master cylinder which distributes fluid to all the brakes at your four wheels. When the seals in the master cylinder start to go bad the fluid can get by and the pedal will feel soft. Have it replaced immediately it is very dangerous to drive. know how and be ready to use your emergency brake, because if the primary braking system fails all you will have is the e-brake. It is not the power brake booster. The power brake booster makes you brakes easier to push, if it were bad your brake pedal will feel very stiff and hard to push down.
2007-03-27 16:34:35 · answer #2 · answered by sonnie_b 4 · 0⤊ 0⤋
Look under your hood at the intake box, where your air filter sits. Locate the main hose that goes toward the engine from there. Branching off of that hose should be two other smaller hoses. One will go toward another part of your engine (PCV Valve, may or may not be there on your car) and the other will go back toward the firewall to another component. That is your brake booster hose. Make sure it is present and not damaged. Remove it (on most cars you simply pull it off the fitting) and make sure it's not cracked on the inside. Check the booster for any leakage. Be careful because brake fluid is corrosive.
Also check your brake fluid to be sure you have plenty. If there's not a "max" mark just fill it all the way up.
Have someone pound on the brakes while you're looking under the car and look for drips coming from any of the wheels. This will indicate if any of your brake hoses are leaking.
Last but not least, you may need to bleed your brakes. You WILL need to bleed your brakes if you have to replace any brake hoses (not the brake booster hose though, it's just air) This is a bit complicated and I would suggest investing in a Chilton's manual to tell you how.
2007-03-27 16:26:17 · answer #3 · answered by Ferret 4 · 0⤊ 0⤋
The answer for this is not unique to Honda's. Your Master cylinder is leaking Brake fluid, You really should have it repaired soon.
2007-03-27 16:25:04 · answer #4 · answered by cawillms 3 · 1⤊ 0⤋
You need to replace the brake master cylinder.
2007-03-27 16:34:35 · answer #5 · answered by zskip62 5 · 0⤊ 0⤋
check your brake fluid,if it got too low it will have put air in the lines.Then you will need to bleed the system.
2007-03-27 16:26:07 · answer #6 · answered by Bird 2 · 0⤊ 0⤋
master cylinder is bleeding off,not holding the pressure.
2007-03-27 18:15:45 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Its going to be your booster.
2007-03-27 16:21:49 · answer #8 · answered by Mike J 1 · 0⤊ 1⤋