Quiestion about brakes on 96 Camry

[Fabito]

Originally Posted by new echo owner

If you are talking about just bleeding the brakes system, you shouldn't have to bleed it at the master cylinder. The sequence should start with RR, LR, RF, LF, have someone pump the brakes for you if you are just using a hose to bleed the system. Connect one end of the hose to the bleed valve, and submerge the other end to a container with some brake fluid in it. Pump the pedal a few times and then hold it down, open up the bleed valve and let the fluid out. When the pedal goes down to the floor, tighten the valve. Do this on each wheel a few times, keeping an eye on the fluid level in the master cylinder. Always close the valve with the pedal down, but with the hose in the container with fluid there is less chance of air re-entering the system.

To bleed the new master cylinder, you can bench bleed it, by clamping the master cylinder down with a vise, fill the reservoir up first, then just let it gravity bleed for a little bit until you see fluid coming out of the ports. Then cover the ports up with your fingers or buy a kit to re-direct the fluid back into the reservoir. You can bleed it further to get all the air out but it does get messy if you don't have any means of re-directing the fluid back into the reservoir. Or you can use the pedal in the car and the lines as a means to finish bleeding the M/C. Mount the M/C in the car, snug the lines down while holding the pedal to the floor. Then pump the pedal a few times, crack the lines loose to let the air out. Do this until you have a firm pedal. Then go through the bleeding process above for all wheels.

Others may have different ways of doing this, I use this way when I don't have my vacuum bleeder with me.

N.E.O.

Today I took off the master cylinder, cleaned it, and greased the parts that needed grease, changed a few gaskets and installed it. Bled the cylinder and all four lines. The problem persists.

However, when I press the pedal fast, I feel resistance but the brakes don't work. I drove around my block trying to press the pedal fast to stop and it gave me resistance but no stoping power. When I press the pedal all the way down with force, the front right tire screeches, its the only one that stops but only when pressed really hard.

Any more ideas?

[new echo owner]

What gaskets did you replace? Did you check the bore of the master cylinder?

N.E.O.

[donbryce]

Originally Posted by Fabito

Any more ideas?

I hate to say this, but you should get the car to a competent mechanic and have this situation fixed before you or someone else gets into an accident.

[Fabito]

Originally Posted by new echo owner

What gaskets did you replace? Did you check the bore of the master cylinder?

N.E.O.

I changed the gasket between the booster and master cylinder. The other ones were fine. On the inside, it had a tiny scratch about 1mm deep, would that cause that big of a problem?

Also when I press the brake I hear squirting noise around the master cylinder booster area. I haven't been able to pin point where exactly, but I don't see any leaking.

[new echo owner]

Without actually seeing the part, can only guess, however, any scratch inside the bore of the master cylinder is not good, it will allow fluid to leak by, which means it is time for a new master cylinder.

N.E.O.