Possible the Power Steering pump.
Diagnosis procedure:
remove serpentine belt. Run car BRIEFLY (1min) and listen for whine. No wine indicates bad power steering pump or alternator.
Spin each pully seeing if the wine can be replicated.
Not much info there but my guess would be the the fuel pump.
your wife
There could be many reasons why the Acura makes a high pitch whining noise. It could be that the brakes or the rotors are going out.
Most likely the power supply or a failing hard drive.
Saturn vue V6 lifter noise when first started
Are you sure it was the water pump whinning? Cause they don't make a noise, even when they are going bad, or atleast ive never heard one make a noise. Sounds to me like its the torque converter, cause when they go bad they whine, and make you lose power... The engine can be running, but with the converter going out it will whine and you are going anywhere. Even though its whinning, the car might be able to go afew, but definitely, wont make it far. My 92 Spirit had a converter that went out. Converter was whinning, and I could still move it around, but wouldn't trust it on the road.
if it makes a loud whinning noise when you turn power steering pump bad or needs fluid if not it might be a popped belt
Generally, this means your fan belt is old and wearing. I would recommend installing a new one, they are very cheap and easy to install.
it sounds like a humming or whinning noise, what year is the truck if its from like 01 or up those trucks have a lot of wheel bearinig problems that some one might misdiagnose as a differential noise or it could be chopped tires making the noise.
A Saturn 3.0 timing belt noise can indicate that the belt is becoming worn down. It can also indicate a bad gear.
#1 noise....loose exhaust
It is not normal for a timing belt to make any noise. It is whining because something is out of place. It is either under too much tension or there is not enough lubrication.