Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: chelski on 26 October 2010, 17:25:28

Title: abs unit
Post by: chelski on 26 October 2010, 17:25:28
hi on fitting abs unit no brake fluid from back brakes does any one know what order the lines go on the unit please help and what the letters by each hole on the unit
 mean  Darren
Title: Re: abs unit
Post by: TheBoy on 26 October 2010, 21:03:41
You replaced the whole unit, not just the ecu bit :o

Oh boy, are you in for some fun and games  :'(

When air gets in these, you'll have a job getting it out.
Title: Re: abs unit
Post by: chelski on 26 October 2010, 21:06:00
no i took out the whole thing and took it to them there was a fault and they repaired it
Title: Re: abs unit
Post by: TheBoy on 26 October 2010, 21:09:18
Its likely you will need specialist equipment to refit it. Sorry.
Title: Re: abs unit
Post by: Diamond Black Geezer on 26 October 2010, 21:14:46
I may have to be doing a similar job myself soon, so will be pleased of any further info given on this thread. Not many on this forum seem to have much experience with ABS, but hope you get all the help you require.

Best of luck chelski
Title: Re: abs unit
Post by: chelski on 26 October 2010, 21:17:41
well i got lights on dash out so probs gone its just a case of sorting the lines correct place on unit
cheers Darren
Title: Re: abs unit
Post by: vauxfan2k on 26 October 2010, 21:17:53
I asked this very question at my local vaux place, they said they have never had to use tech 2 to get the abs bled, pressure bleeding was all they did, and they have done a few.

the Mechanic guy is pretty clued up, far from daft, so cant see him telling a porkie..

Ill be keeping an eye on this one  ;)
Title: Re: abs unit
Post by: TheBoy on 26 October 2010, 21:20:54
Quote
I asked this very question at my local vaux place, they said they have never had to use tech 2 to get the abs bled, pressure bleeding was all they did, and they have done a few.

the Mechanic guy is pretty clued up, far from daft, so cant see him telling a porkie..

Ill be keeping an eye on this one  ;)
I've had to do it a few times where people (including myself  :-[) have allowed air into the actuator whilst bleeding.


The key to ABS ECU repairs is to purely remove the electronics and coils, not the hydraulic part.


Good luck chelski, hope you manage to get the air out.
Title: Re: abs unit
Post by: Diamond Black Geezer on 26 October 2010, 21:27:00
Quote
Quote
I asked this very question at my local vaux place, they said they have never had to use tech 2 to get the abs bled, pressure bleeding was all they did, and they have done a few.

the Mechanic guy is pretty clued up, far from daft, so cant see him telling a porkie..

Ill be keeping an eye on this one  ;)
I've had to do it a few times where people (including myself  :-[) have allowed air into the actuator whilst bleeding.


The key to ABS ECU repairs is to purely remove the electronics and coils, not the hydraulic part.


Good luck chelski, hope you manage to get the air out.


verrry interesting mr bond.... this is all adding to my knowledge. thanks boys.
Title: Re: abs unit
Post by: tidla on 26 October 2010, 21:44:19
did you have to bend the pipes out of shape that much?

(yes you did)

(http://i1045.photobucket.com/albums/b460/tapper888/261010005.jpg)

is that the same?

pressure bleeder as sugested, if that dont work jack a driving wheel and "fool" the pump into operation.
Title: Re: abs unit
Post by: chelski on 26 October 2010, 21:48:57
cheers mate big help now just printing to go have a look
Title: Re: abs unit
Post by: Andy B on 26 October 2010, 21:53:00
Quote
...... if that dont work jack a driving wheel and "fool" the pump into operation.

I pretty sure that'll not fool the ABS into doing anything.  :-/ Jack one rear wheel up & you'd only have just one wheel spinning and three stationary wheels.
I drove just one wheel of my Astra the other day and all that did was confuse the ABS into putting the light on.  ;)  ;)
Title: Re: abs unit
Post by: tidla on 26 October 2010, 22:00:57
Quote
Quote
...... if that dont work jack a driving wheel and "fool" the pump into operation.

I pretty sure that'll not fool the ABS into doing anything.  :-/ Jack one rear wheel up & you'd only have just one wheel spinning and three stationary wheels.
I drove just one wheel of my Astra the other day and all that did was confuse the ABS into putting the light on.  ;)  ;)

a gentle "input" from the pedal will help
Title: Re: abs unit
Post by: Diamond Black Geezer on 26 October 2010, 22:13:41
Good point. Have bled brakes before on other cars both with pressure feed, and the olde-worlde method of pumping the pedal, mixed result in both cases.

Has anyone any experience of fitting these without the tech 2, just using the 'bored mate slowly pumping on the pedal method'??
Title: Re: abs unit
Post by: Andy B on 26 October 2010, 22:42:54
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Quote
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a gentle "input" from the pedal will help

I assume you mean the loud pedal ....  ;) I think that's where my 'problem' started and the ABS light came on.

It might be slightly different with traction conyrol  :-/

I still doubt it'd work with just one wheel turning ....  :-/ :-/
Title: Re: abs unit
Post by: tidla on 26 October 2010, 22:53:20
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Quote
Quote
.....
a gentle "input" from the pedal will help

I assume you mean the loud pedal ....  ;) I think that's where my 'problem' started and the ABS light came on.

It might be slightly different with traction conyrol  :-/

I still doubt it'd work with just one wheel turning ....  :-/ :-/

no brake pedal/switch

turn off the traction

jack the one which registers the speedo

similar effect/principle to when the abs ring breaks off the cv joint on the old rovers
Title: Re: abs unit
Post by: TheBoy on 27 October 2010, 18:44:06
Quote
Quote
Quote
Quote
.....
a gentle "input" from the pedal will help

I assume you mean the loud pedal ....  ;) I think that's where my 'problem' started and the ABS light came on.

It might be slightly different with traction conyrol  :-/

I still doubt it'd work with just one wheel turning ....  :-/ :-/

no brake pedal/switch

turn off the traction

jack the one which registers the speedo

similar effect/principle to when the abs ring breaks off the cv joint on the old rovers
I suspect, given a not dissimilar situation I had in the winter with tractor, the dumb ABS insn't quite that dumb....