Three Questions

Three Questions. Very Very Hard to Start in Morning. Battery Good. Recent Tune-up. Used over the counter fuel injector cleaner. No help. Once it starts, starts rest of day every time. Runs fine. Only difficult to start after sitting for 10 hours or so overnight. Not really cold in Fremont, CA overnight, but very difficult to start. There are no codes. Could it be fuel pump pressure so bad fuel pump, dirty injectors? Is there something called a cold start injector sensor. But again no codes. Just started doing this over the last several months.

Question 2. When vehicle has been driven and warmed up and you come to a stop, when begin to move forward, at times it feels like something in the rear end sticks, like a grab. Does not do it every time, but definitely feels like something is stuck and then released. Not a lot of noise just a feel something locked up and then released. Had recent brake job. Was doing prior to brake job. Could it be.U-joints, tranny? How to check?

Question 3. After recent brake job, power steering pump very noisy when turning under power to the left, a little noise when turning to right, but most noise when turning left. I believe this car has a system, power assist or power boost. I think power steering and brake fluid are used in part of both systems. Reason for pump noise after brake job?

Thanks for the help. Dan.