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[Webby the Bear]

This is a stab in the dark so please don't hesitate to tell me I'm talking nonsense if you think. But....

If all things have been done brakes and suspension wise could there be an ABS problem? For example a sensor gap problem causing excess braking on that caliper?

[martin42]

If abs sensor gaps are out it will put up the abs lights as it cant read the signal 

[chrisgixer]

This is a stab in the dark so please don't hesitate to tell me I'm talking nonsense if you think. But....

If all things have been done brakes and suspension wise could there be an ABS problem? For example a sensor gap problem causing excess braking on that caliper?

Abs fault sees a stationary wheel. So releases the brakes. Not applies. But the effect would be the same. Except the car doesn't stop.

Abs sensors on the omega are good as bomb proof though. It's just the ecu that's known to fail.

[TheBoy]

This is a stab in the dark so please don't hesitate to tell me I'm talking nonsense if you think. But....

If all things have been done brakes and suspension wise could there be an ABS problem? For example a sensor gap problem causing excess braking on that caliper?

Abs fault sees a stationary wheel. So releases the brakes. Not applies. But the effect would be the same. Except the car doesn't stop.

Abs sensors on the omega are good as bomb proof though. It's just the ecu that's known to fail.

And ABS  activation would give telltale signs on the pedal

[05omegav6]

The pump is as noisy as fook as well

[chrisgixer]

Having driven it, the symptoms are almost identical to TB's loose wishbone bolts.

One bolt was loose, front right. One over tight, other two probably not torqued correctly. All bolts torqued.

Bushes checked, drivers rearward wishbone bush failed. Badly. Delphi shite.



Steering idler shows visible verticle movement when rolling the pas road wheel back and forth.

To me, the bush is causing the steering input on the brakes, and suggested to Terbert that replacing the Delphi bushes with Gm ones would fix the pulling on the brakes.

But, during the drive home, I realised I've never experienced a steering idler with that much play. So the idler could be causing symptoms as well...?

A question for those with experience of severe steering idler play I guess..?

I know TB has had a (more) severe idler, but I think he would of said in the past if the symptoms where similar to loose wishbone bolts.

Reason being I think Terbs wants to leave the idler until after the mot on cost grounds. I've recommended a GM idler from vx as the last Lemforder one I had didn't last. And press in Gm rearward bushes as suggested earlier.

There's is a distinct set distance in play fealt at the steering wheel that is directly proportionate to the amount if brake pedal used. Apply the brakes, the steering wheel moves, at this point turning the steering wheel gives a springy feel that has no affect on the rate of turn within a a two inch zone in the steering wheel movement. More over there is a also a distinct slight clunk at each end of the two inch range of play beyond which the steering then starts to move.

Anyway. New rearward bushes and idler, and she'll be right.

[Paddy Flannery]

Thanks for the photo and explanation. Mine was equally as wayward under braking last year. Rear w/b bushes were buggered. New w/b and she was fine again. It developed very quickly and while I knew it was coming before I braked, I didn't allow the wife to drive her.

[Terbs]

I have to give Chris (gixer) a massive thankyou, for coming over and giving me a superb lesson in fubared suspension etc.
Without you chaps I could not keep an Omega, let alone two.
Monday morning I shall try to get the bushes from Burnham Vauxhall in Wycombe. May bite the bullet and get a steering idler too. Cash is tight this month with massive outgoings, but it may have to sit on Visa for a month, That way everything can be done at one session. MOT is also due on 3rd April.
Great pic Chris, of the rear bush
I have to go to the Wirral next Sunday to a friends funeral. If the car is not repaired by then, I'll leave it at the garage for a week while we are away.

[TheBoy]

I know TB has had a (more) severe idler, but I think he would of said in the past if the symptoms where similar to loose wishbone bolts.

A "disconntected" feel, rather than harsh pulls. Not dissimilar to tramline, but without the pull, if that makes sense?

[chrisgixer]

I know TB has had a (more) severe idler, but I think he would of said in the past if the symptoms where similar to loose wishbone bolts.

A "disconntected" feel, rather than harsh pulls. Not dissimilar to tramline, but without the pull, if that makes sense?

Yep that's pretty much how I described it to Terbert.

[cd 2.2]

The wishbone bush failure in that picture is shocking  Is this why we should only fit GM ones or Lemforder ones then?? I don't want to have to deal with this when mine are done !

[chrisgixer]

They all go that way in the end. Although probably not quite this bad.


But, they certainly shouldn't look like that after such a short space of time since purchase/fitting.




But as I/we/oof/members/the admins/experienced members/those that know and even those that don't will and should always bang on about until the end of time;

This is the risk you take with pattern parts.

[TheBoy]

They all go that way in the end. Although probably not quite this bad.


But, they certainly shouldn't look like that after such a short space of time since purchase/fitting.




But as I/we/oof/members/the admins/experienced members/those that know and even those that don't will and should always bang on about until the end of time;

This is the risk you take with **untried/tested (On Omegas)** pattern parts.

Fixed for clarity

[D]

They all go that way in the end. Although probably not quite this bad.


But, they certainly shouldn't look like that after such a short space of time since purchase/fitting.




But as I/we/oof/members/the admins/experienced members/those that know and even those that don't will and should always bang on about until the end of time;

This is the risk you take with pattern parts.

No, no, the reviews online said they are ok. Plus I know at least 20 other people who said its ok online. So I must be right and you must be wrong! 

[Terbs]

Bushes and steering idler ordered from Vauxhall....Steering idler £100.80, bushes £43.05  both inc vat.

Should be here today.
One thing I was surprised at was how Lemforder seem to be the choice for parts, but Chris said his idler did not last long. I know the Lemforder is half the price of the Vauxhall one, but what is so different in manufacture that the part fails quicker.
Who makes Vauxhalls parts, especially as the Omega finished ten years ago.

** Stop Press** Vauxhall have just phoned as I type, bits are in as quoted £143.00