While driving my car fails to accelerate. in drive all it does Is Rev real high

What is your question?

While driving down the highway yesterday it just stopped accelerating. Reved really high and would not go. I pulled over put it in park. Tried drive again and nothing happened, It would not engage, only rev Real high. I tried one more time , Putting it in driveand it worked drove a few feet and then stopped working again. The Aaa garage today is finding nothing wrong with it. They put it in drive and it drives perfectly. The exact sameThing happened to me three months ago. I have put 3000 miles on the car since then. When I got in the car and started it yesterday it was making a squeaking noise. Not too loud but definitely a noise. I thought the car was just cold. 4 miles down the highway it stopped accelerating. I had to Coast to the side of the road. Now nothings wrong. Please help

What makes this problem better or worse?

No warning whatsoever. Just a slight squeaking noise that sounded like a cold belt

How long has your 2000 Lexus ES300 had this problem?

3000 miles ago it happened. Then yesterday with no warnings