Omega Owners Forum - Rear suspension creaking

Trothy

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Posts: 27
Warrington

Drives: 2.2 Omega

Rear suspension creaking
15. Jan 2011 at 14:33

Hi everyone, have noticed the rear suspension on my omega (2.2 Saloon 2001) started creaking very noticeably over speed bumps during the recent cold snap.

It's a bit warmer now and the creaking is not as bad but definitely still there. If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing? As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan

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Entwood

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North Wiltshire
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Re: Rear suspension creaking
Reply #1 - 15. Jan 2011 at 15:56

Trothy wrote on 15. Jan 2011 at 14:33:

Hi everyone, have noticed the rear suspension on my omega (2.2 Saloon 2001) started creaking very noticeably over speed bumps during the recent cold snap.

It's a bit warmer now and the creaking is not as bad but definitely still there. If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing? As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan

AFAIK the rear donut bushes can't be checked on an MOT as they are not visible ... and no dismantling is allowed .. if I'm wrong I'm sure "someone who knows" will correct me very soon ..

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Kneepad

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West Scotland
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Drives: '96 Omega 2.5 TD CDX Auto Saloon and '99 Omega V6 CD Auto Estate.

Re: Rear suspension creaking
Reply #2 - 15. Jan 2011 at 21:12

Entwood wrote on 15. Jan 2011 at 15:56:

Trothy wrote on 15. Jan 2011 at 14:33:

Hi everyone, have noticed the rear suspension on my omega (2.2 Saloon 2001) started creaking very noticeably over speed bumps during the recent cold snap.

It's a bit warmer now and the creaking is not as bad but definitely still there. If I give the car a hard push on the boot corners a pretty loud creaking noise can be heard.

Would I be right in thinking this is the rear donut bushes that need replacing? As the car is going in for it's MOT in a couple of weeks would this likely be a fail on the MOT?

Cheers,

Allan

AFAIK the rear donut bushes can't be checked on an MOT as they are not visible ... and no dismantling is allowed .. if I'm wrong I'm sure "someone who knows" will correct me very soon ..

I have had a failure on my TD for excessive play on a nearside donut bush. I found no evidence of this myself, so took the car to another MOT station where it passed without a mention. Undecided

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chrisgixer

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Wokingham
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Re: Rear suspension creaking
Reply #3 - 15. Jan 2011 at 21:54

Mine failed the MOT and they where knackered. They are visible to an extent, with the car on a ramp certainly, or when jacked, by looking through the gap under the triangular plate, more obvious when looking from the direction of the rear dif, see the guide. There is a pic of donut in situ. Press the bump stop/knobly bits around the outside diameter in towards the centre of the bush, if they stay put all is well, if they fold in towards the centre to reveal a rusty mess underneath they are fubar.

As said elsewhere on here there can't be many omegas left with sound original rear donut bushes, my previous car was a 52 plate, bushes failed. Most of the cars done at Newent where facelifts post 01 at least iirc.....and all had a valid MOT.

Failed bushes front and rear, IME, are often missed by MOT inspectors, and I was actually quite pleased when mine where spotted. Tightened up the back end nicely once replaced.

Hth.

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Trothy Newbie Offline Posts: 27 Warrington Drives: 2.2 Omega	Re: Rear suspension creaking Reply #4 - 15. Jan 2011 at 23:17 Many thanks for the info guys.
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chrisgixer Omega King Offline Black ones are faster. Posts: 14570 Wokingham Gender: Drives: "Omega Black" 3.2 Elite. Thanks to Joshwyatt.	Re: Rear suspension creaking Reply #5 - 16. Jan 2011 at 00:09 Trothy wrote on 15. Jan 2011 at 23:17: Many thanks for the info guys. Not saying your squeak is definitely rear bushes mind. But if it's that audible I guess it should be easy to find with an assistant bumping the car while you carefully look underneath....
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polilara

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Finland
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Drives: 2.6 V6 (Y26SE) Sedan 2001 Elegance

Re: Rear suspension creaking
Reply #6 - 16. Jan 2011 at 09:30

Mine failed the MOT and they where knackered. They are visible to an extent, with the car on a ramp certainly, or when jacked, by looking through the gap under the triangular plate, more obvious when looking from the direction of the rear dif,

see the guide. There is a pic of donut in situ.

Press the bump stop/knobly bits around the outside diameter in towards the centre of the bush, if they stay put all is well, if they fold in towards the centre to reveal a rusty mess underneath they are fubar.

As said elsewhere on here there can't be many omegas left with sound original rear donut bushes, my previous car was a 52 plate, bushes failed. Most of the cars done at Newent where facelifts post 01 at least iirc.....and all had a valid MOT.

Failed bushes front and rear, IME, are often missed by MOT inspectors, and I was actually quite pleased when mine where spotted. Tightened up the back end nicely once replaced.

Hth.

Hello

I have same problem, the colder the louder. Where is the guide ? How to change them ?

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hotel21

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Doghouse
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Re: Rear suspension creaking
Reply #7 - 16. Jan 2011 at 11:45

polilara wrote on 16. Jan 2011 at 09:30:

Hello

I have same problem, the colder the louder. Where is the guide ? How to change them ?

When at the Omega Owners Forum home menu, click on Maintenance Guides in the second section down (Omega Help).

This opens the maintenance guides so click on Maintenance Guide Index towards the top and look down through the various links, set out in relevant sections for engine, electrical, drivetrain etc etc.

In the drivetrain section, the rear subframe bush guide is the last in the suspension section.

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sierrapaul

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Drives: elite v6

Re: Rear suspension creaking
Reply #8 - 16. Jan 2011 at 15:06

if you can get a lever bar in there and theres excesive movement they will fail the mot.get under it with a can of white spray greese and spray spring mounts,shock mounts and any bushes.its where its been cold and damp and now its dry and things have got rusty most cars go like it in winter.white greese with ptfe in it is all you need

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ffcgary1 Omega Baron Offline I really must get my eyes seen to. Posts: 2263 Mitcham,Surrey. Gender: Drives: 2.5 v6 tourer, 2000 4.0 straight 6 jeep cherokee lpg	Re: Rear suspension creaking Reply #9 - 16. Jan 2011 at 15:25 This sounds like rear anti roll bar bushes are creaking due to the amount of salt put down this winter, remove the anti roll bar rubbers and clean the bar then grease the rubbers with some silicone grease and refit.. Simples.
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chrisgixer

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Wokingham
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Re: Rear suspension creaking
Reply #10 - 16. Jan 2011 at 17:15

sierrapaul wrote on 16. Jan 2011 at 15:06:

if you can get a lever bar in there and theres excesive movement they will fail the mot.get under it with a can of white spray greese and spray spring mounts,shock mounts and any bushes.its where its been cold and damp and now its dry and things have got rusty most cars go like it in winter.white greese with ptfe in it is all you need

Is White grease petro chemical based?

I'd be using something sylicon based on bushes/rubber components tbh.....?

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ffcgary1 Omega Baron Offline I really must get my eyes seen to. Posts: 2263 Mitcham,Surrey. Gender: Drives: 2.5 v6 tourer, 2000 4.0 straight 6 jeep cherokee lpg	Re: Rear suspension creaking Reply #11 - 16. Jan 2011 at 17:30 Quote: Is White grease petro chemical based? I'd be using something sylicon based on bushes/rubber components tbh.....? Like what i said
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chrisgixer Omega King Offline Black ones are faster. Posts: 14570 Wokingham Gender: Drives: "Omega Black" 3.2 Elite. Thanks to Joshwyatt.	Re: Rear suspension creaking Reply #12 - 16. Jan 2011 at 17:34 ffcgary1 wrote on 16. Jan 2011 at 17:30: Quote: Is White grease petro chemical based? I'd be using something sylicon based on bushes/rubber components tbh.....? Like what i said Indeed, like wot you said.
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