new caliper fitted still grinding?

Hi any ideas would be much appreciated.

I have just changed the drivers side caliper and pins on my td4 for a new unit I blead the unit and it intiallly drove fine and after stopping going in for a well earned brew it seems to judder like the anti-lock breaks are coming on and grind a little even though the pads are nearly new and the vented discs are fine. Is there a speacial way to blead the caliper to take into account the abs?

Thanks in advance

sure you havent knocked an abs sensor?

Hi Kizzeh thanks for the swift reply. I have just replaced the abs sensor on the other side as the three amigos were lit up changed it and they all went out as they should two straight away and the abs one at around 5mph so gusseing theat was done ok.

When you fitted the new abs sensor did you put the white contact grease down the bore, and push it fully down into the bore until it stoped by touching the abs ring at this point as soon as you move it will gets its own distance from the ring , new discs brakes will sound very slightly rubbing this is because they are all made of abrasives now but soon should go away, have you made sure the bolts are tight on everything?

My own investigations have shown that only a completely 'open circuit' ABS sensor fault will show the 'Hat trick' of warning lights. An ABS sensor which is producing reduced signal output will 'turn off' the ABS warning light at the prescribed 5-8 km/hr road speed but will then cause ABS to activate, producing a 'grinding' sensation through the brake pedal just before the vehicle , under braking, comes to a complete halt, due to the fact that the ABS monitoring system, mistakenly, believes that the affected wheel is about to lock. Reasons for the reduced signal output from the ABS sensor are generally regarded as due to incorrect fitting/refitting or damage sustained during hub removal for wheel bearing replacement etc.

Thanks teddywood1 and Dann for the advice I will give it another look at tommorow after work. This members of this site are so helpful to other less knowlwgable individuals. I hope I will be able to help others in thesame way in the future.

Thanks again

Darrell