Hi, I have a 2003 Lexus RX300. For the past couple of months, my car has been emitting a high-pitched squeak that comes from the front of the car. The squeak occurs only when I am moving AND turning left. This also only occurs when I first start to drive off after the car has sat for several hours. At times, the squeak continues after I make a left turn while I accelerate until I make a right turn, and then it never happens again while I am driving for that period of time. Any ideas on what could be causing this? Thank you!

 

Power steering pump or the belt is loose?