![]() | Home > Maintenance & Mods (L322) > Suspension Rock Hard |
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
So I have noticed my suspension is rock hard and when the car hits a bump in the road the rear end seems to skip about on the road like a shopping trolley.
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DrRob Member Since: 16 Apr 2015 Location: Petersfield, Hampshire Posts: 4323 ![]() ![]() ![]() |
There is a mahoosive long thread on here all about it |
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
Yeah I read that and there was no definitive answer.
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7866 ![]() ![]() ![]() |
I’d check your rear shocks again to make sure… the other thread is mainly about hard suspension, not so much skipping about. I had a knackered rear shocker which caused mine to move about a bit over bumps. Failed MOT. Replaced them both and no movement over bumps any more…..
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
When I say hard suspension I mean like the shocks are locked.
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3283 ![]() ![]() ![]() |
Check the wiring to the top of the shocks. Assuming you have a GAP IID tool is it showing any faults?. I had a faulty solenoid replaced on one of my shocks and it wasn't showing on the GAP IID but did show on JLR workshop diagnostic that the garage used 2012 TDV8 Vogue (L322) |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7866 ![]() ![]() ![]() |
Only suggest checking the rear shocks to help diagnose the skipping….. the hardness might be a different issue…
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7866 ![]() ![]() ![]() |
Are the solenoids separate then?
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
Is there a recommended test to perform on them? Christian. Current Cars 2011 Range Rover Vogue SE 2020 BMW M4 Competition 2019 BMW X4 My RR Blog: www.facebook.com/L322Project or https://www.fullfatrr.com/forum/topic61540.html |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7866 ![]() ![]() ![]() |
Not exactly sure to be honest… I know you could do a bounce test on normal ones, but the dampers don’t get any signal to soften up from the ECU until the car is moving… some of the casing had allowed oil to come out mine, so you could see it… or at least the MOT tester did. Maybe you need to get them off and see if they push in and out easy?
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
I had them off to replace the brake pipes recently. They seemed fine. Rather stiff, could not easily move the rod, like any other shocker I've ever knows really, no visible oil etc.
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3283 ![]() ![]() ![]() |
The de-energised state of the CVD dampers is full stiff. Not sure what the solenoid is as it was on the repair list and was only £30 so maybe it was just the wiring? 2012 TDV8 Vogue (L322) |
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Caesium Member Since: 21 Sep 2021 Location: Essex Posts: 453 ![]() ![]() ![]() |
The solenoids are inside the dampers and are not serviceable. I will have a go at metering out the dampers and see if there is any current being applied to them when driving when I get a chance.
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Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631 ![]() ![]() |
Have you got someone that can drive behind the vehicle and record a video? Ideally also record from both sides, the higher the frame rate the better, it'll give you a good idea of what's going on, also check the tyres (all round) for distortion / balance / pressure / castellation.
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