Well, with such a question as this (no details as to where the sound seems to come from,) there are a couple usual answers for this. If you have a turbo charged (or otherwise forced induction engine), that would be the loudest whine under acceleration. If not, most probably your transmission the gears and other parts of the clutch system will rub together and make a slight whining noise, especially when the motor/transmission is cold. The tranny fluid is more viscous, thus the parts are working that little bit harder to move.
Check the power steering fluid level. It might just be low or there is a leak.
when warmed up high pitch noise at idle and it gets louder during acceleration Response to : Can someone actually answer this question? This is my question and the above answer makes no sense.
Previas have a history of a whining noise coming from the catalytic converter. There is a bracket inside the converter that when loose or has came apart creates the whining noise during acceleration. It especially is very pronouced during high speeds in the freeway. You might be in for an expensive cat converter replacement.
Whining noise near belts had pulleys adjusted any idea what is causing this
A whining noise in the transmission is usually an indication the transmission fluid is low. Check the transmission fluid and fill it to the recommended level.
It is the alternator....
Its could be the turbo your hearing...
The kids in the back.
The whining noise in our 2001 2.2 cavalier turned out to be the a/c compressor. It ended up going out at about 120,000 miles. I would suggest having it serviced. I wish we would have had ours serviced.
wheel bearing, gearbox or wind noise Supercharger?
the whining noise is probably your passenger whining about the stupid questions you ask
I would say probably not, the reason your battery is weak is I reckon due to a fault with your alternator. It is obviously not producing sufficient power (electricity ) to keep the battery charged. The whining noise is probably caused by worn-out bearings. A replacement or re-conditioned alternator should cure the problem .