Vibrating transmisssion...

[cgilb]

Anyone with vibration in the car when accelerating and turning right or left
with an Outback wagon 1997 automatic.

I was told that the transmission had to be flushed. Wich I did. It came out
to be three to four time worse after it was done. What is left to be done
now?

Claude

 

[Edward Hayes]

We need more information. Why do you think it's the transmission and not an
engine miss. What modle and does it have a limited slip differental. Could
be a AT clutch pack acting up which I think is computer contolled. Help us
help you.

 

[Henry Paul]

I would agree. It sounds like an issue with the clutch packs shifting power
from front to rear. My jeep with part-time 4x4 is built like that. You can
only run on really slippery surfaces or you can't turn very tight. The front
end bucks and hops trying to get the tires to slip.

 

[cgilb]

It's a 1997 Outback Station wagon AWD, automatic transmission. I don't know
if it has a limited slip differential. I did some research on the WEB and
they call it: « 4EAT transmission binding in turns. (service bulletin) ».
this type of vibration or binding occurs when accelerating or maintaining
speed through a turn. On the straight road, nothing is felt and the engine
has never missed.

This binding or vibrating phenomenon has only occurred four or five time
before I brought my car to the garage and had the automatic transmission
flushed. I was frustated a bit because the mechanic never tried my car
before he flushed the transmission to get an idea of what was the problem.
He only took my word....When I drove the car after the flushing had been
done this vibration which was felt in the driver's seat (as if you had an
unbalanced tire in the rear at high speed) but it was at low speed as as I
said in my previous message it was 3 to 4 times worse than when I took the
car to the garage. I intend to drive my Outback like this for a while and
see what happens? What do you think? Is it a good idea?

I Hope this will give you a better idea of my problem. Thanks for taking the
time to answer me.

Claude

 

[Edward Hayes]

It is important that ALL tires be of the same circumference to within ~1/4
inch or binding can occure. I would check this first. A pencil line on the
tire and on the ground and roll the car one tire revolution and measure
between the two lines. Get back to this thread ed