I changed the whole master abs cylinder but the dash board light still comes on
ABS lights are usually triggered by a sensor, not a master cylinder.
SOURCE: Ford Escape Breaks
Did you replace them yourself or did you take them to a "qualified brake specialist"? It sounds like your brake lines need to be bled properly. You may also have one or more calipers sticking to cause the vibration.
SOURCE: can break master cylinder (kit) do as good job
don't mess with them if you are not comfortable with them.for safety issues replace one that you know was done right!!!!!!!!
SOURCE: low break pedal ,abs and traction light is on
worn out pads or rotor, possible broken abs cable to brake. first check to see if all 4 are connected. all ore on back side of brake dust shield. than check to see if the brakes are worn last is the rotors. also see if there is a recall on the brake and battery re charge system.
SOURCE: I have a 96 ford
Check your parking brake. if it goes down to the floor or does not hold, then your back brakes needs adjusted. bad master cylinders bleed off slowly to the floor while pushing on the brake pedal. If you need assistance on adjusting let me know.
Randy
You've done major work and now you'll need to completely bleed air out of the system, to get the fluid to go all the way through. You may also need to adjust the rear brake shoes.
First, bleed the Master cylinder to get fluid through it. This should have been done before installation. Loosen the lines at the M. Cylinder and fill up the reservior with brake fluid. Pump the brake pedal slowly with the cover on the M. Cylinder to prevent fluid from splashing out. Once you've got fluid coming through the M.Cylinder, tighten the brake lines at the M. Cylinder.
Bleeding the brakes is a 2 person operation. You always bleed the brake the farthest from the master cylinder, then the next, the next, and finally the drivers front brake which is the closest to the M. Cylinder.
If you are unfamiliar with this process, you need to remember that you can't let the brake fluid get low in the M. Cylinder, or you have to start all over when air gets back into the lines.
When one person pumps the brakes, after several pumps hold the pedal down as far as it will go and keep pressing to the floor as the other person loosens the bleeder valve. Don't let off of the pedal before tightening the bleeder valve. Then repeat until all of the air is gone.
Teamwork and communication. Both of my wives were able to assist me in bleeding brakes.
You will have to add fluid and repeat this process until you have a firm pedal.
One man bleeder valves work if used properly, but who tells you what is happening at the other end while you're pressing the pedal?
Good luck.
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