Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Kaycee on 14 October 2011, 19:54:04
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Hi all
Hope someone can help I noticed today that my car was very high at the rear it looked just like a wedge on the road. I had took it for its Mot and the lad did say "My that looks a bit high at the Rear" I had not noticed it before but when i was coming home from my daughter the other evening i i thought the car was not running with its usual straight leveled feeling. It cant be the pump as its pumped right up i asked the garage but he just looked into my face and curled his lip obviosly not a clue . I wondered if it was the rear sensor but its not moving at all, and the car as not gone down yet 4hrs after i parked up.
I hope someone can tell me whats wrong and if its going to be expensive Knowing my luck ide say it is
Thanks in anticipation
Robert
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There is a sensor Bob on the drivers side of the rear axle, you can lower it or lift the car with that. You need to take it off the rubber and see what happens then adjust accordingly :y
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Thanks for that daz ill see bloke at local garage
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Pull the air line off one of the shocks to let it down again. Either sensor not reading correctly, or the pump is not releasing air. The self level pump runs for a short time on start up usually, pumps up, sees the required ride hight as correct, then let's air out if needed.
If cant let the air out, it just keeps pumping up over time and the back keeps rising.
Or the sensor is reading incorrectly.
See maintenance guide for test self level suspension.
Nth
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Hth... Not Nth
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thanks chris
just measured it before start up as it been stood all weekend and it is
from ground to wheel arch
Ds= 710
Ns= 720
im going into town shortly and letting garage look at the back sensor ill measure it when i start it up see if it changes i suppose it will
Robert
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It will only pump up if it thinks its low. So if its high, and you hear the pump, thats likely to be sensor fault.
If its just always high, and you never hear pump, it could be the pump cannot release air, or something else amiss (eg, wrong springs or shocks)
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I had the springs changed at the same garage last year as he said one was broke so i told him to change both i did emphasise that it was self levelling they said "yes sir we know" the springs were KYB but in all honesty i had not noticed if it indeed it was high when they changed them it was when the car was parked waiting and i was a few feet away that i noticed it looked high. but i know its different as the view out of the rear view mirror is different now i yhink about it and thats on the memory position. By the way what is the measurement for the rear suspension
TIA
Robert
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Thanks for all yr help with this, garage is looking at it on thursday
does anyone know the measurement from floor to wheel arch mine is
740mm its just i would like to be armed with the correct figure, i could not find it in hand book
Thanks all
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740 is very high indeed imo.Essex Bigal did some measuring a while back,and istr elite saloon from floor to wheelarch was around 675.
Quite a few elites seem to be fitted with LA coded springs which makes them sit a little high apparently,but Im sure its nowhere near 740. :-\
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There's some measurements in this thread: http://www.omegaowners.com/forum/index.php?topic=84324
As Albs says, somewhere around 650-675 'at rest' seems to be about right. I'd measure mine, but I'm pretty sure it has the same problem :-[
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Another link to confirm the same thing - around 675mm is the correct height. I think that 740 is waaay to high. Either the wrong springs have been fitted,or they have done something badly wrong when reassembling.
http://www.omegaowners.com/forum/index.php?topic=94569.0;all
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I had numerous issues with mine tyring to get the correct ride height sorted.
In the end I replaced the pump and the rear axle sensor from a breaker.Problem was resolved,but am convinced it was a fault with the original pump.It never seemd to drop back ,like yours just kept pushing more air in.Somewhee in the pump system is a releasse valve and sure that was the fault with mine.
Worth picking up a replacement pump from a breaker ..around £25/£30 expect and changing it over.Will be a lot less than the labour rate you could pay at a garage for them to experiment at your cost.
By the way mine sits totally stable at 660mm from ground to underside of rear arch and thats with brand new GM self leveling shocks and KYB s/l springs :y
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Reading back from the start of the thread, it could be more than one problem ? Car sat high after new springs were fitted,now sitting very high and staying there al the time,if Im reading it correctly ?
Imo needs someone to look at it who knows what they are looking at.Any knowledgeable OOFers nearby ? :-\
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Hi all
First thank you for all your help on this matter it truly helped
Garage man checked the sensor in as much moving lever when he shoved the lever up it rose further but would not come down when he pulled lever down. He then took off pipe and there was loads of pressure and suspension dropped to 670 height . the pump then started back and pumped it only slightly but did not drop anymore. He seems to think that it is this sensor that is causing the bother so as said soon as i get a replacement he will fit it if that does not work he will have to look further. he charged me a fiver so couldnt complain there.
Thanks again
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Hi all
First thank you for all your help on this matter it truly helped
Garage man checked the sensor in as much moving lever when he shoved the lever up it rose further but would not come down when he pulled lever down. He then took off pipe and there was loads of pressure and suspension dropped to 670 height . the pump then started back and pumped it only slightly but did not drop anymore. He seems to think that it is this sensor that is causing the bother so as said soon as i get a replacement he will fit it if that does not work he will have to look further. he charged me a fiver so couldnt complain there.
Thanks again
Doesn't sound like the sensor to me. It sounds like the valve attached to the pump, that's supposed to release the air to lower the suspension.
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Exact same symptoms as mine.
My money is on the pump as well not releasing the air....get another from a breaker and replace it yourself . :y Simple unbolt the old one and swop over .
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hi all
i have had the sensor changed and it as made no difference so most of you are right it does look like the pump. I have aquirred a breaker pump from steve at heathrow. I am going to try and do it my self as garage quoted £60 to change it, where is it situated and how do i get to it to remove it garage said lights need to be took out,well drivers side im sure someone said it was in wheel arch
Thank you
Robert
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In the drivers side front wheel arch, in front of the plastic wheel arch liner.
I haven't taken mine out (yet.........) but I cannot see that taking the headlight out would give any benefit at all.
Get the front wheels up on ramps and you should be able to get good access from below the car.
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Just a update on the pump
I found that a pipe was split on the pump i put on a new piece but it made no difference it looked like it had been sucking crud into the pump, However with the help of my grandson we changed the pump over for a breaker one Bots were a bit tricky but done. It is now working ok and level is 680 but they were KYB springs wether i change to genuine SL springs im giving it thought. 680 dont seem too bad it was 740
One again thank you all for your excellent advice
special thanks to Albs
Robert
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680 is what I measured mine at (Elite on standard 235/45R17 tyres) the other day :y
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Glad to hear its sorted :y
When I replaced my pump a while ago I also fitted new pipe work onto the pump as it had seen better days ;D....used fuel hose which was an exact fit and also the long breather section.
Unsure of the way pump releases air :D but my money was on it not doing it either properly or at all hence why the rear just kept getting pushed higher.
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The pump will run or should run on every start, it's easily audible. It pumps up then releases to the sensor hight every time. So if the pump can't release air it just keeps pumping up gradually with each start. Pumping up and releasing air can be heard, hence the guide on playing with the sensor to test.
Glad your sorted. :y
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Hi All
Just as an aside to the Self Leveling Pump
It is fitted and all seems okl but
On initial turn of the key it takes 30 sec before the pump starts and runs for about 4 to 5 secs
I got this pump from steves Parts at Heathrow it was very clean and looked ok and indeed is working ok.
The one that came off used to start to run within 20 secs and did pump up ok but would not allow it to drop so it was no good really
The question im asking is 30 sec the time it takes as it seems a long time to me or ios this the norm.
It does seem to work ok i put the lawn mower in the boot with some gardening tools and it immediatly pumped up slightly, when i took them out with engine still running it came on again and went to correct height.
it just the 30 second delay at start i was worried about have i got a duff pump
TIA
Robert
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No, that's normal. It varies. Both on an individual car, and from car to car. I don't think it's a timed process as mine used to start almost immediately, or as I was driving up the road, had two Elites now, 52plate and an 03.
Sounds like it ok to me. :y
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thanks for that ill leave it and see how it goes on
thank you all for your excellent advice
robert