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Thread: NSR sits lower

  1. #1
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    Default NSR sits lower

    Hi Everyone,

    I have recently noticed that the NSR corner of the car is a bit lower than the rest. The gap between the top of the tyre and the wheel arch is about 15mm less at the NSR. The car is a Signum 2.0T Elite (2007).

    I looked at the rear springs and they seem to be the same. I can't see anything wrong with the NSR spring. No idea what to look at next and the car goes for mot in 3 weeks

    I would be grateful for any ideas?

  2. #2
    Regular Member nikroc's Avatar
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    Vehicle : 2t

    Trim : standard

    Engine : z20net

    Year : 08

    Mileage : 32000

    Default

    Have you physically taken the spring out to check?..has the shock gone awol?..may sound daft but..tyre pressure?..

  3. #3
    Regular Member si_hoss's Avatar
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    As posted could be a dead shock, does that side bounce the same when you try ie: does it go down back up to the top then stop back in the middle, or does it keep going like it's only the spring working?? Also check the shock is still bolted on the car at both ends, my dad's old Astra van had sheered the bottom bolts on both sides...

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    confused

    I checked a bit more this morning and there is no discernible difference in either side of the rear suspension. If I bounce the rear corners it seems to up and down about 1.5 times - same on both sides. The big difference though is between the front and rear. If I try to bounce the front it feels much stiffer and I can hardly get it to move, whereas the rear will move if you just rest your hand on the boot floor.

    Once more thing, I drove with the window down today and can also hear a squeak from that nearside rear corner. The squeek goes away when pressing the brakes!

    I suppose I should sort out the soft rear end and then see if it sits level. Is that caused by the springs? I can't see the shocks making it soft. Is the car supposed to be softer at the rear, after all its not got the firmer SRi setup, it is an Elite so designed for comfort.

    Oh and the handling seems good as ever, goes round corners fast and with minimal roll.

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    Default

    Forgot to say, tyre pressures normal and tyre wear even. Also I havent taken anything apart yet.

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    Regular Member m8internet's Avatar
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    Default

    Check the shock absorber
    Wear gloves, so as not to damage the paint, lift the wheel arch and then release
    If there is a squeek noise the shock absorber has failed
    Once it has completely failed it will start to leak, but it can take several weeks before it gets to this stage

    Check the spring
    You really need to raise the car to do this
    Usual failure point is the bottom

    Last year I had both a nearside rear shock absorber failed, noticed when car started to bounce side to side across the rear of the car, and an offside rear spring fail, with the same symptom but with no noise

  7. #7
    Regular Member si_hoss's Avatar
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    Default

    Quote Originally Posted by davidj387 View Post
    , whereas the rear will move if you just rest your hand on the boot floor.
    Hmmm I'm thinking shocks too. I only noticed my dad's problem because when we went fishing in the van I put my foot on the back bumper to tie my shoe lace up and the whole back end dropped with the weight, straight away thought "that's wrong". The only thing dad had noticed before this was a vibration through the vehicle from 50 going away at 55 - nothing at any other speed!

  8. #8
    Regular Member RLFH470's Avatar
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    Vehicle : Vectra

    Trim : SRi Nav

    Engine : 1.8 VVTi

    Year : 2006

    Mileage : 55k

    Default

    I'm following this thread with interest as I have a similar issue. I have measured the gap between the bottom of the wheel arch and the top of the wheel rim, (as it was easier than trying to get the tape measure into the arch gap), and my rear end is about 2 cm lower than the front. I have done the 'drop test' as mentioned previously and don't seem to get any bounce back at all. I have attached a photo but the height difference isn't easy to see.

    For info, the fuel tank is about an eighth full at the moment, tyre pressures are about 28psi all round and the boot is pretty empty. Is this height difference normal on a 1.8 SRi or could it still be suspension related? Many thanks.
    Attached Images Attached Images

  9. #9
    Forum Moderator soulman's Avatar
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    Vehicle : Vauxhall

    Trim : Astra Twin Top

    Engine : 1.9cdti

    Year : 07

    Default

    think youll find the front wheel arch is higher than the rear ..so you WOULD need to measure the gap from wheel to arch

  10. #10
    Regular Member RLFH470's Avatar
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    Vehicle : Vectra

    Trim : SRi Nav

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    Year : 2006

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    In that case probably nothing to worry about then as still handles okay round corners. Ta!
    Last edited by RLFH470; 6th May 2011 at 13:35. Reason: Extra info.

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