Couple of months ago I wrote about thumping/jerking feeling when taking foot of the brakes after stops. (See here http://www.brickboard.com/RWD/index.htm?id=795829&show_all=1) At that time many people suggested to check 1) tranny mount (rear), and 2) control arms bushings. This morning I finally had a chance to look underneath (my S90 was due for an oil change.) I think I will try replacing tranny mount myself and if it does not fix the problem, it will go to an auto shop for new bushings.

Below is the picture I took this morning. Is this a cross member Chrissij was talking about (see below)? If it is, then it is not really silver; more like dark graphite/almost black. There are two bolts on each side and one in the middle (visible on the picture.) Do I have to take all five of them out or just four bolts from the sides? Should I put support underneath the tranny pan? Where is the actual mount located? Thanks for all your tips and suggestions..


Chrissij wrote:
Cross member is silver bracket that extends from side to side on the car...'bout the middle of the car. Since the cross member is kinda wide it's hard to tell without a lift if the trans mount is dead, but from your description that is what it sounds like.
Well, you have to pull the cross member, but not the tranny...course we have lifts and spin jacks...we put the spin jack under the tranny to hold it stable, take off the cross member, replace the mount and then put it all back together.

I have changed it too. Try to move up and down AT and you should hear, is tranny a reason of your sounds.
--
Gregski; european V90 '97 B6304FS2 AW3043 IGS HID

First, put a stand under the transmission. You must not remove the cross-brace until you have another way to support the transmission.

Next, remove all five bolts/nuts that you see, the two on each side and the one in the middle. The one in the middle is holding onto the bottom of the rear mount. Once all five are off, you will be able to remove the cross-brace. It will then be obvious how to remove the rear mount and replace it with the new one.

Then reverse the process to put it back to gether. This is a simple repair and a good one for a beginning mechanic.

Place a block of wood under transmission pan.Loose & remove the middle nut. Then jack up the transmission about 1" inch to get the weight off of the cross-brace Remove O2 sensor wireing nuts from the cross-brace. Remove the 4 nuts that hold the cross-brace.Remove the cross-brace from under the car Unscrew the two nuts that hold the Transmission mount on to the cross-brace. This should take about one hour. Install in the reverse order.



1990 740 Regina 255K & 1998 s90 122K

Thanks. Sounds simple enough. What mount should I get? I believe FCPGroton carries MTC mounts. However I read somewhere that the quality of MTC mounts is not very good... Is this true?

Installed the new tranny mount last Friday. It was pretty straightworward, thanks for everybody's help. The key was to raise the tranny itself a little bit so that it does not rest on the cross member when removing the bolts.

However, after replacing the mount I discovered that the problem still exists: the car jerks sligtly when taking foot off the brakes after stops or slow downs. So, it must be control arm bushings again... (I just replaced them 2 years ago!)