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ABS module
BazaJT:
Starting this instead of cluttering the "what have you done.."thread any more.
Story so far. N/s/r caliper seized[new one bought] removing old caliper resulted in caliper to flexi hose brake pipe snapping and also end of that pipe not coming out of end of flexi hose,so new parts bought and fitted.Bleeding the brakes in the normal way resulted-after several hours of trying :o-in a trickle of fluid from the bleed nipple and a brake pedal only just off the floor.Next visit to the car and the brake pedal went to the floor and no fluid would come out of the bleed nipple or the brake pipe at the caliper ??? Pressure bleeder purchased which resulted in reservoir filling up and pressure forcing fluid back out of reservoir but none at caliper end >:(Master cylinder seems to be working correctly so either air is trapped in abs unit or the unit is fubar.I've yet to try reverse bleeding.If air is trapped in abs how do I get it out[assuming reverse bleeding doesn't do it]? If I need a replacement abs unit do all the numbers etc have to match and how do I make sure no air gets trapped in that when swapping them over? I have seen 3 used ones on e-bay,one from a 3.2 one from a 2.0 and one from a 2.2 diesel,while they look the same as mine[at least the 3.2 one and the diesel one do]the numbers and two big letters on the top are different.
BazaJT:
Forgot to mention my car is a year 2000 face lift 3.0 Elite auto saloon.
Andy H:
Not a direct answer to your question but.... could the problem be the new caliper or flex pipe or hard pipe on the rear trailing arm? Did the hard pipe twist or kink in the fight to dismantle it?
If you slacken the flex pipe can you pump fluid through?
I think you need an ABS from a V6 (2.5 or 3.0). IIRC the 4 pots don't have traction control, the 2.5/3.0 V6s have 3 channel ABS with basic traction control and the later V6s have 4 channel ABS with a more advanced traction control.
TB should be able to give you the answer re the ABS module.
Doctor Gollum:
Firstly, Andy is correct re the ABS differences.
However, it sounds like you need a Tech 2 or decent alternative to run the ABS as the brakes are bled.
Swapping out the ABS unit won't change this, as the new one is guaranteed to be full of air, and depending on how it has been stored, probably corroded inside (it's aluminium after all).
You should start furthest point from the reservoir and work back... So Nsr, Osr, Nsf, Osf. Although some sugest to treat the ABS as the 'reservoir' giving Osr, Nsr, Osf, Nsf.
Either way, I would try the following.
Open the cap, ensure that the reservoir is topped up, completely remove each bleed nipple in turn, slowly pump the pedal by hand a couple of times and refit the bled nipple. Once you have done this on all four wheels, you will hopefully have fluid at all four corners and can then bleed it normally. ;)
Andy H:
A final point - the 3 channel ABS presumably has one channel each for the front wheels with both back wheels on the third channel. Following that logic - if you can get fluid out of one rear caliper then it can't be the ABS - it has to be something basic like a crushed pipe (metal or flexi).
NB - this is just a theory but I would have a good hard look at the bits I had worked on before considering trying to change the ABS.
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