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Exhaust (maybe) rattle
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webego
 


Member Since: 06 May 2015
Location: Bromley
Posts: 331

England 2012 Discovery 4 3.0 SDV6 Base 7 Seat Auto Orkney GreyDiscovery 4
Exhaust (maybe) rattle

Hi all,

So upgraded (I think) from my D3 to a 2012 D4. All good except for one thing, there is a very audible rattle from the exhaust area when the car is idling. I've been under and checked all the hangers are present and correct and had a poke around to make sure the heat shield isn't touching the exhaust anywhere. I believe it is the exhaust because if I put my foot on the CAT area or apply a bit of pressure with a screwdriver, the rattling does mostly stop.

The vibrations (and the noise of course) seem to cycle from stronger to weaker over a second or two. I can feel the vibrations coming all the through to the down pipe from the manifold.

So I have a few questions for anyone willing to have a stab:

Is that sort of vibration normal?

Can the CAT itself be causing the noise if something has broken loose inside?

Any suggestions of things I can check beyond the above?

Thanks
  
Post #225095512th Sep 2021 5:16 pm
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