Y61 4.2 Rear knocking noise
Posted: 24 May 2019 06:03
Rear Nocking Noise when driving in sand, on the road no noise, cannot say where in the rear, anybody have any ideas
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Y61 4.2 Rear knocking noise
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Re: Y61 4.2 Rear knocking noise
Posted: 24 May 2019 06:28
Mabe the rubber packing on top of the coil is worn ?
Re: Y61 4.2 Rear knocking noise
Posted: 24 May 2019 09:00
Or the upper and lower rubber bushes might be "kaput", so as you go over a bump it has excess movement. You should also feel it on pull off though....
Re: Y61 4.2 Rear knocking noise
Posted: 24 May 2019 09:43
One of the rubbers on my rear sway bars disintegrated. The sway bar had a lot of play as a result and any drastic movement, such as going over a speed bump would result in a loud clack sound.
I've also had two of my shocks on different cars develop knocking sounds. It was a major pain to find since the shock tested fine. Could have been the mounting rubbers as well I suppose. Either way, replacing the shocks sorted the problem in these two cases.
I've also had two of my shocks on different cars develop knocking sounds. It was a major pain to find since the shock tested fine. Could have been the mounting rubbers as well I suppose. Either way, replacing the shocks sorted the problem in these two cases.
Re: Y61 4.2 Rear knocking noise
Posted: 25 May 2019 08:31
Thanks good place to start, I have fitted OME recently, made noise before as well.
Re: Y61 4.2 Rear knocking noise
Posted: 25 May 2019 08:33
Re: Y61 4.2 Rear knocking noise
Posted: 25 May 2019 08:38
HI, I have recently replaced coils and shocks OME 2", made no difference, going over speed humps does not make a noise.pgreeff wrote: ↑24 May 2019 09:43 One of the rubbers on my rear sway bars disintegrated. The sway bar had a lot of play as a result and any drastic movement, such as going over a speed bump would result in a loud clack sound.
I've also had two of my shocks on different cars develop knocking sounds. It was a major pain to find since the shock tested fine. Could have been the mounting rubbers as well I suppose. Either way, replacing the shocks sorted the problem in these two cases.
Re: Y61 4.2 Rear knocking noise
Posted: 25 May 2019 11:08
Check the sway bar links to see If any of them are loose. Mine keeps coming loose on the rear passenger side and any articulation results in a loud knocking noise because of the play. Drives me crazy 
it's fine on the tar but as soon as I go off road it starts.
I need to get new ones next time I'm in SA
it's fine on the tar but as soon as I go off road it starts.I need to get new ones next time I'm in SA
Re: Y61 4.2 Rear knocking noise
Posted: 26 May 2019 12:56
Thanks I will check this out.Craig Lord wrote: ↑25 May 2019 11:08 Check the sway bar links to see If any of them are loose. Mine keeps coming loose on the rear passenger side and any articulation results in a loud knocking noise because of the play. Drives me crazy
I need to get new ones next time I'm in SA