A vibration or shutter may be noted on acceleration. If the transmission torque converter is suspected a revised part is available to correct this concern.Google+
Car Problem Reports
Subaru Tribeca Vibtation or shutter on acceleration
Subaru Tribeca Problem
Average Mileage: 77,250 mi (30,000 mi - 120,000 mi)
Visitor, 2009 Subaru Tribeca, 100,000 mi
rumbling or shuttering happens when stepping on the accelerator at times then goes away.
Visitor, 2008 Subaru Tribeca, 57,000 mi
[Added note: the second time the dealer said there was a remapping program for the transmission. Apparently, that's not enough.]
My Tribeca was bought from a reputable Subie dealer just after they got it from Subaru USA as a company car. Totally maintained and such. At first it was an occasional shudder/vibration you could feel in the seat of your pants. I used to have a shop and know the first thing is tire balance, etc. Then a new set of wheels/tires for winter just after purchase, and the problem didn't go away. She now has 61K miles and it's getting worse. I've mentioned this to the dealership twice since. (I have a lifetime powertrain warranty.) I had thought maybe there's a u-joint or differential problem. But, that didn't explain that it was consistent under light acceleration/ light load that didn't coincide with either road speed or engine speed. Torque converter problems could easily explain this. Guess whom I'm calling in the morning.... Thanks all. Sometimes it's right under your nose and you can't smell it until someone else says: "What? You can't smell that skunk!" I've owned about six Subies (in addition to four Hondas, four Toyotas, three BMWs) and I'll take a Subie over any.
Thanks all for this info/perspective. :)
Visitor, 2008 Subaru Tribeca, 56,000 mi
Vehicle begins wobble at 90km/hr which worsens with greater acceleration. Originating from powertrain, or Torque Converter.
Visitor, 2008 Subaru Tribeca, 89,000 mi
Traded for an Audi
Visitor, 2008 Subaru Tribeca, 90,000 mi
same as above.
Visitor, 2008 Subaru Tribeca, 70,000 mi
shudder/vibration throughout car at 40 mph and 60 mph speeds.seen numerous complaints about this issue.torque converter problem to blame