help bleeding brakes with abs Options

[medina95gt]

My 95 Celica brake pedal has been going all the way down . I'm hoping it is not a faulty master cylinder. The brakes are good. Recently bleed all four of them, but the brake pedal still goes all the way down. So I'm wondering if I have to cycle the abs if so is there a way I can do it with out taking it to the dealer? Sorry if there's a thread on this I couldn't find one with my problem.

This post has been edited by medina95gt: Sep 11, 2014 - 3:43 PM

[garin]

when you were bleeding them did you...

1. close the bleeder with pressure in the system... (like the pedal was depressed, or you had the fluid under the pressure of vacuum)
2. no air bubbles were visible in the fluid
3. keep the brake fluid reserviour full (didn't go below the minimum fill line)

[VavAlephVav]

if the master cylinder was bad you'd probably have more of a pedal doesn't want to push down, or pedal doesn't come back up kind of problem.
if the pedal goes too far to the floor and you don't have stopping power you more likely have air in the system or some kind of leaky calipers.
bleeding the system has to be done just right or they won't work well enough. and you need a friend to help you, unless you have some expensive tools they would have at a shop.

I would not recommend the "one man" procedure or the "gravity" method unless your a super pro. I would rather do the old fashioned "get your buddy to help" method as shown here.
https://www.youtube.com/watch?v=lPwM2vn3bT0

also you must start from the Longest brake line (passenger rear) and work toward the shortest line (driver front).

mine has an abs system and there was no need to mess with it at all even when we replaced the master cylinder. however, if you let the fluid get too low while bleeding the system you may need to bleed the master cylinder as well.
https://www.youtube.com/watch?v=3PHVXFcdMk4

This post has been edited by VavAlephVav: Sep 11, 2014 - 9:07 PM

[medina95gt]

I used the buddy system. Cap off never got low on fluid. Pump three times then open the lines to release. Rd,rp,fp,fd.
No leaks from the brakes.

[Bitter]

Keep bleeding them, are there bleeders on the ABS pump? You may need to bleed it at the pump if there are. I know I had to, but my old Clonerolla had a different ABS system than the Celica and Corolla.

[Batman722]

Bad master cylinder.

[VavAlephVav]

Even if you need a master cylinder it's not that hard to do. Just search for a video on "bench bleeding" and bleed it before you put it on.
You can get a decent one on rock auto for less than $100

When we took mine apart we found a little foil seal from a break fluid bottle down inside the piston.

This post has been edited by VavAlephVav: Sep 12, 2014 - 11:08 AM