I just recently replaced my power steering pump belt and belt tensioner and Idler pulley because I was having a loud squeaking noise when I turn the wheel and also when I pushed on the break while sitting.after I replaced all those parts still have the loud squeaking noise when I'm idling why push on the break I don't know if it's the brake booster or the Master cylinder that might be causing the noise

 

Welcome to the forum, try starting a new thread in the Tech section, we'll help you over there. This section is just for intros. Good luck