Vibration felt everywhere while in D or R - Why?

Post by **EstVolvo** » 20 Nov 2010, 23:39

Vibration felt everywhere while in D or R - Why?
There is almost no vibration while in P or N.
Transmission - AW50-55SN
Engine - B5244S
Engine mounts are o.k.
Transmission mounts are o.k.
100000+ miles
I have felt similar vibration in V70 with 35000 miles on it.

Post by **precopster** » 21 Nov 2010, 01:42

I had a similar problem with my 850. The engine mount closest to the crank sprocket is almost imperceptible to view for breakage unless it's removed. Easy enough to do (Jack the car up remove the road wheel on the crank sprocket side, place it on a stand, support the engine weight with a jack, the peel back the plastic cover remove four bolts 14mm X 2 and 17mm X 2 and it's out) Check this first and see how you go. Good luck.

Post by **JRL** » 21 Nov 2010, 06:25

I'm assuming you mean at idle
You neglected to mention your model year
You say your "mounts are OK"
ALL FIVE MOUNTS??? (upper torque, lower engine mount, right side (front) of engine as stated above and important), transmission mount, and the 2 hydraulic subframe mounts)
Have you also tried to check the four subframe bushings? (also hard to check).

A P2 idles at a lower RPM than a GEN 1, 675 vs 875, so if everything is not brand new this engine tend to vibrate a bit at idle and the 01 thru 03s tend to vibrate more then 04-07s