High pitch noise seems to be steering and temperature related.
My 2003 ford windstar makes a high pitch whinning sound when the outside temperature about 40 degrees F and above. Is loudest when making a turn in either direction. Was told by ford service department it was temperature related and to ignore it.
Re: high pitch noise seems to be steering and temperature...
I have a 2003 Ford Windstar also. You probably will need to replace the power steering motor. It will get worse, and if it goes out, it may lock up your serpentine belt, and you'll be on the side of the road.
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do u have any power steering fluid in ur pump? This will cause it to steer hard and should also be making a high pitch whining noise. I believe u need a new power steering pump and if the hoses going to the pump are leaking, then you will need to replace them as well.
I would check the idler pulleys on the belt first. Then maybe the alternator. If your battery is getting a little weak it could be working the alternator hard when you first start it up. I don't know how loud it is though. The alternator wouldn't be real noticeable but some people would hear it.
take to a proper mechanic and have it lifted and inspected on a ramp ,you have a serious problem by the sound of it and i have no idea with it up in the air and my big bar in my hand to wiggle woggle it
this sounds odd but mine did this when i replaced the wipers. it seems the design of the wiper frame was making a whistle at higher speeds. the freestar wipers are exposed on the window cowl and not hidden so they endure the winds at high speed. it is worth a shot.
Making sure that you have the right component will help, but should be a relatively easy repair. There are only a few bolts on the starter and you should be able to remove it with a basic wrench and socket set. When you pull the part off check the gear on it to see if it is worn. This may be the problem. Usually, if it is the starter, though it will make a loud grinding noise. Kinda sounds like a high pitched impact gun. Replace the component making sure that you wire it exactly like the one you remove. Take a picture if necessary.