Dazed and Confused
Join Date: May 2012
Location: Upstate New York
Re: 00 Taurus DOHC, big noise from drivebelt and power steering pump
That's not what I've ever experienced. The power steering pump is nothing more than a hydraulic pump, basic explanation, you turn the wheel one way, hydraulic pressure is ported to one side of a ram which assists in turning the front wheels, turn it the other, and it's ported to the other side of the ram. If you go hard up, a relief lifts and gives you a little bit of a noise. It sounds like it's the pump, but a quick check (not necessarily a go-no go) is to block up the front end so the tires aren't touching the ground. Turn the car on and turn the wheels. The pump may or may not make the noise, but it should be relatively easy to turn. If it's binding, you might want to look into the rack and pinion, etc. for something binding first. Unfortunately, I don't know of anyway of checking pressure without a modification or special tooling.
A power steering pump from Advance Auto runs you about 50 bucks, and I don't know how good it is, just using it for a pricing reference. BUT, on a front wheel drive car, that's probably the easiest part of the power steering system to replace. Wish I could give you more info, but that's about all I know about power steering.