A4 vibration, 3rd gear only
09-12-2011, 08:39 PM
#21
TECH Regular
Join Date: Jun 2009
Location: new york
Posts: 448
Likes: 0
Received 0 Likes
on
0 Posts
im gonna go out on a limb and guess u guys have a poly trans mounts , that being said yank em out and install a stock or aftrmkt rubber one in there and im bettin your vibrations are gone . i know cause i did it at the same time i did my trans , checked everything etc etc . guess what the poly dont give and is stiff unlike the stock one . either live with it or replace it .
09-13-2011, 01:43 PM
#22
Yes vibrations exsist in the drive train and trans. There is an excellent reason GM used the mounts they used on the engone and the trans and its not cost as in reality those stockmounts cost alot mre to produce than the poly mounts do. They made them strong enough yes but at the sametime they were made soft in order to dampen or isolate drive train vibration from chaisis. Add poly engine mounts you add alot couple that with poly trans mountsand well its can get really bad. The vibration being greater in third gear is simply because in that gear the entire drive train becomes straight through so all vibs are tranfers with exqual intensity .
__________________
