7th Gen ('06-'07): The LS4

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Aug 1, 2021 | 12:39 PM

#11

CASCO

Thread Starter

Joined: Jul 2021

Posts: 36

I have no idea, but I’ll look - either way what are you thinking?

Aug 1, 2021 | 12:54 PM

#12

wht02monte

Joined: Oct 2009

Posts: 4,159

From: Coal City,Il

Quote:

Originally Posted by CASCO

I have no idea, but I’ll look - either way what are you thinking?

Well what youre explaining is exactly what my car did when I switched to poly mounts. I have the v6 so I have two mounts up top where as you only have 1 but slowing down from about 30mph to stand still, it vibrates. Putting in N stops it.

Im trying to think of how to ask this... Does the frequency of the vibration match the RPM of the wheels or axels?

Aug 1, 2021 | 03:49 PM

#13

bumpin96monte

Joined: Feb 2008

Posts: 6,460

Quote:

Originally Posted by CASCO

Thanks - I noticed that if I put it in neutral as I come to a stop the vibration doesn’t happen, so it’s obvious it’s a transmission issue or it’s just the way it is. Sooooo??

I don't have any good suggestions in terms of diagnostics. I can say its not normal though.