I had a problem with my car a noise when I turned ...

I had a problem with my car a noise when I turned and the tech heard it after driving it but could not find where it was coming from. Told me if it happens bring it in again and leave it and we will give you a loaner car. Two weeks later I brought the car back and received a loaner car. They called me and said my car now needs $1400 worth of work. Grease leaking from the left front axle and a wheel bearing on the right side. I requested the estimate and took my car to a local certified mechanic. They had the car for the entire day. They checked it mechanically and the axle and under the car and drove it and nothing was wrong with it. Before this I trusted them and felt they were honest and for the last few years was bringing it to them for service. Will not be taking my car there again.