I recently had problems with the steering on my Odyssey getting very tight when makeing turns at very low speeds (parking, especially backing up. Ended up having the ball joints first and then the struts replaced away from the dealer and it seemed to have fixed the problem. However, after the ball joints were replaced we starting getting vibration in at high speeds. I ultimayely took it to the dealer and tell me that 2 of the engine mounts are "torn." Not only did the dealer question what was done to repair the steering thet indicated that engine mounts could have easily been damaged during that repair. Given the timing of when we noticed the vibration, it makes sense. Could two engine mounts have been torn when the ball joints were replaced and if so how?
Damaged engine mounts on 2006 Honda Odyssey
I find it very questionable that motor mounts would be ruined from changing ball joints. I would REALLY go to another shop and get a second opinion. The ball joints are FEET away from the mounts. The high speed vibration may be tire imbalance. Motor mounts are usually felt when your are accelerating and they feel like a clunk. a totally broken mount would be a constant vibration, not just at high speeds.