Whining noise with acceleration?

I’ve noticed a whining noise with acceleration, even when my kids aren’t in the rig, any ideas? (is a vacuum leak a possibility?)
2011 SR5, about 133,000 miles. There is also a sort of pulsating rhythm when idling in drive. Any guidance is appreciated!

 

The whine is normal. It almost feels as if there is a turbo in there. It is a 20 year old engine after all.
Clean your MAF sensor if you ve never done it. A dirty sensor messes with idling.

 

Record a video of the idling sound, near the engine, hood open and post it. If you can mount your phone in the engine compartment safely, record a video of the sound while driving.

 

Send pics from under the hood.
Hoping to see a MAGNUSON instead of an engine cover.

 

Make sure your power steering fluid is at the proper level.

 

Leave the ol lady at home and see if the noise persists

 

Thanks all! I’ll try those things…may not be able to leave the old lady though…