2000 SLE Front end shakes when turning right

My 2000 SLE front end starts shaking when i turn right. My mechanic found the left engine mount broken and replaced that and that fixed ruff shifting problem but not the shakking problem when turning right. It is especially noticable when accelarating. It is not alignment tire or wheel problem as I have brand new tires and the problem was there before i replaced them and i had a alignment done as well. Any ideas my mechanix mentioned PVC joint or axle problems but is not sure.