High pitched whine to the right front passenger side that appears to increase with acceleration

If it is the idler pulley for the accessory belt, it would make the sound at all times the engine is running, not just under acceleration. I would look to the wheel bearing or the brakes on that corner of the vehicle.

Possible bearing in one of the drive pulleys. I have changed numerous alternators for this noise. Take the belt off and start the car. If the noise goes away you know it will be pulley related and not transmission related. If noise goes away, spin all pulleys by hand to determine the defective/noisy one

Hi Kimberli,

I suspect that since all windows can be powered up and down, you have issues with I believe 2 specific switches you mentioned that have problems - as a result of possible rain water, melting snow / ice or spillage of beverages. You might be able to clean them up - or replace the ones that are "flaky"

Good luck!

Could be one of the belts slipping or worn out. Might even be the water pump bearing. Does the whine increase/decrease as you rev? Whine louder if you suddenly accelerate?

One wheel turning faster than the other is normal if both wheels are off the ground. If one wheel is dragging when the other wheel is on the ground, it could be brakes or a wheel hub bearing.
Usually if the noise happens on right turns, the left hub bearing is failing, and vice versa.

The lost acceleration is of major concern. Maybe you have lost your water pump. It would work great for a few miles when you start out and then gradually heat up and loose performance. The fluid would eventually boil over? Maybe a bearing on the camshaft is expressing it's discontent and causing extra load for the engine to overcome. Try to determine where the noise is coming from.
The serpentine belt connects the alternator, water pump, power steering, front timing pulley, fan, and front timing pulley. All these components generate a parasitic load on your engine. If the engine has to work harder because of increased load it could be any of these components. I'd definitely check the water pump listening for noise while running. Look for obvious things related to the belt and its' components.
Check the serpentine belt for wear. May indicate pulley misalignment or wear. There exists two idler pulleys that have small bearings that wear out and squealing noises. Check those for wobble with the tension off the belt. They are pretty cheap so replace them if any concern at all.
Power steering pumps cavitate and make a high pitch gear whining sound if fluids are low or gears warn of. Check the fluid and top off to the correct level.
Best wishes,
TF

The noise you're hearing is the electric fuel pump in your fuel tank.

Whining high pitched sound from front end...left front wheel bearing or right it could be hope this helps tell me if it does

it is your idler pulley. get it from dealer comes with bracket, just use pulley off bracket. take your belt off and your idler pulley is lower right hand side(facing your engine). 15mm bolt, replace pulley and reinstall your belt. it;s a common problem on trailblazers

hat u need to do is drive vehicle until you hear this pitch once you hear it turn steering to the right to see if whine disappears if it does you are looking at replacing wheel bearing.