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Clunking/crunching Noise At Low Speed

jackbh241

By jackbh241,
in Four Door Family & Wagoneers

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jackbh241 Collaborator

jackbh241

Posted
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Sorry if this has been covered before, I can't recall reading anything. My M35 has a strange clunking/crunching sound at low speeds. It doesn't appear to happen at higher speeds (over 40) although I guess it's possible that I just can't hear it.


To me it sounds like it's coming from the rear somewhere and also sounds like it is at the same point on the rotation of the wheel. ie whenever the wheel gets close to that same rotational position it clunks. It's been an issue for quite a long time and just haven't got around to working out the problem.


Incase the issues are related; I also get chirps constantly (that I assume are from the ATTESA) and a year or so ago I lost my passenger side rear wheel on the highway so there's potential that there was some minor damage from that accident that is slowly getting worse?


Any help would be GREATLY appreciated,


Thanks,

ben3322 Collaborator

ben3322

Posted
Posted

is it happening mostly while turning? not an expert on stageas but if its an LSD, sometimes the clutches in the diff will bind and release rapidly and repeatedly when cornering causing the inside wheel to "skip" which sounds like a clunk noise from inside the car and will also churp.
sometimes its a simple fix by just changing your diff oil and you can also get an additive that goes in with the oil to help free up the clutches.

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