Car Forum World

We have a 97 Legacy Outback with the 2.5 engine. Last week it suddenly developed an odd vibration. It felt like it was coming from the front, maybe the right side. It feels like a badly unbalanced tire. We just had new tires put on about 3 weeks ago. The odd thing is that it does this under a load only. When accelerating it gets worse the harder I press on the pedal. When I let it coast at an even speed, it goes away, completely. At highway speeds it will do it while speeding up and it also does it if I let off the gas completely where it is using the engine to slow it back down. keep it at a steady speed and it is gone. The 2 front axles are fairly new and I crawled under and felt all axles and u-joints and everything feels pretty solid.

Any ideas would be appreciated.