My boyfriend has a 2012 WRX. In the recent ice, we ended up sliding into a curb and hitting the front passenger tire pretty hard. He then complained about vibration and took it to the dealer. They replaced the control arm and he put all new tires on it. Well, he still says it is vibrating and has taken it to 3 other mechanics since. I decided to ride with him this weekend and these are my notes. I have basic mechanic skills, but this is out of my area. I am looking for any ideas and leads at this point.
Intermittent car vibration felt/heard mostly on the passenger side (I can only describe it as it sounds like the warp core from the enterprise). Most prominently felt on the floor boards near the engine, the vibration is felt less on the floor boards closer to the seat.
Sound is not correlated to tire rotation. The sound stays at a mostly constant speed. It does increase just a bit at higher speeds. The most notable change is that the sound becomes a higher frequency the faster you go.
Sound is not always present. Drove many of the same roads at the same speeds, but a few times the sound/vibration would not be there.
Sound worsens when turning left, but stops when turning right. Also stepping on the brake stops the sound, even if still moving at a higher rate of speed. (Coming down off a highway, even at 60 MPH, sound completely stops when the brake pedal is pressed)
I wish I had more, but I couldn’t see anything visually that could be causing the problem. Thanks you for all the help!!