LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Clunking sound

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Old 10-07-21, 05:58 PM
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Zetascry
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Default Clunking sound

Hi guys,

I recently had my front lower rearward controls arms done on my 2014 Awd Fsport. Also changed out ball joints on both sides. I had the mechanic loosen the bolts for control arms when the car was sitting on alignment machine and then re-tightened so the control arms sit in the natural position.

Right after alignment, every time I turn the wheel, engage gears, move the car..there is a clunking sound. The mechanic did drop the sub frame from rear of the engine.. I don’t know what it could be. Do you guys think the engine mount came loose? Any help is appreciated
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Fastnlight (10-10-21)
Old 10-07-21, 06:28 PM
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Anfanger
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The question is, did the mechanics loosen the control arms enough? Usually, there is a distinct sound when the arms snap back.
Old 10-08-21, 06:35 AM
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Zetascry
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Originally Posted by Anfanger
The question is, did the mechanics loosen the control arms enough? Usually, there is a distinct sound when the arms snap back.
Actually there was no sound when he loosened the arms. I didn’t think there had to be a sound for it set in properly..
Old 10-08-21, 03:56 PM
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THE_CEO
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Are you hearing it over bumps or just turns?
Old 10-08-21, 04:11 PM
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Zetascry
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Car is at full stop..just turned on after 10 hours of sitting over night. Engaged gear..clunk sound..turned wheel to the left..clunk sound..dominantly when turned to the left. Mechanic said it’s coming from between the left and right wheels..engine mount?
Old 10-09-21, 07:54 AM
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I would double check if all bolts were tighten. Check all the bushings the mechanic touched including subframe.
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BlazeViper (10-09-21)
Old 10-09-21, 09:35 AM
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Originally Posted by Zetascry
Mechanic said it’s coming from between the left and right wheels..
Well, now that narrows it down.
And then I'll add to that, it's probably from the front end of the car. <BFG>
Old 10-09-21, 12:23 PM
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The car needs to go on a lift so all the front end items can be visually checked as well as checking for movement with weight off the wheels. We can't do that via forum.
Old 10-09-21, 10:20 PM
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check the front control arm ball joints, also the steering rack arm ball joints, and 4 upper control arms ball joints
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