Hi, really need some help, I replaced the rear pads about 500mi ago and
everything was fine, needed to to the fronts next so bought new pads and rotors, I also replaced the bearings. While I was at it removed all
the calipers and cleaned and painted them, letting the brake fluid drain out.... I put everything back together and using a vac type of bleeder did
all the wheels starting at the futherest from the master cyl. I kept getting
air bubbles. I then had someone slowly push the brake down while I opened each valve and closed them when returning the pedal up. got
good fluid in the clear hose at each wheel.
I have the abs, traction control fail and stability control fail lights on and
the brakes aren't working! can pump them up but they got to the floor
very quickly... what did I do wrong?? car is xjr with 130k on it but looks
and drives great still I didn't have any issues before I did this, any one
have ideas? thanks

 

It is a common problem that when you use the "push the pedal to the floor" method of bleeding, the seals on the master cylinder get damaged because the seals get pushed into an area of the cylinder bore that it normally does not go to.

If that is the case, you need to repair or replace the master cylinder. The replacement must be bled on the bench, and the entire system has to be bled again after replacement.

You didn't leave a bleeder open did you?

 

No didn't leave a bleeder open abd there aren't any signs of leaks, I read about the problem of pushing the pedal to the floor problem and I did try my vac tool first on each caliper. I guess shouldn't have done the pedal to the floor, well that is only part of the problem, why are my faults showing up?
If I need another master cylinder can I get a rebuild kit? I checked on ebay and
the master cyl prices are low to high, what are the differences?

 

I have found that with rebuilt components, price is not nesessarily an indicator of the quality of the re-build. Look up the names of the various rebuilders, and go with one that seems to have been in business a while and that you can identify as "legitimate". Other opinions will vary. (It seems like Jaguar owners like to spend extra $$ on their cars!)

After you do the master cylinder, if you still have codes, get someone with the enhanced dealer level code reader to read the codes for you. It will cost up to $75.00, but it will most likely ID the real problem and is much cheaper than throwing parts at it.

 

unbolt calipers and rotate so the bleed nipple is at 12 o'clock to pump the trapped air out. Wire the caliper and use an eze-bleeder. Once done make sure the brake fluid level is bang on the maximum or a smidge under.

This happens when installing a dry system, not from general brake service.

Hope this helps