Engine whistle while accelerating

Hey guys,
I’ve got a stock 20 Tacoma v6 DCSB 4x4 with 22k that makes a whistling sound around 2000-2100 rpms from the front engine area, and only while accelerating, regardless of mph. It completely disappears as soon as I take my foot off the accelerator, and doesn’t make any sounds outside of those rpms. I can cruise at 2000-2100 rpms and there’s no whistle. Any ideas before I take it to the dealer?

 

I get one intermittently when the AC is on and accelerating.

 

mine does that but only when the A/C is running. haven't heard it in a while since i only use the heater this time of year

 

It’s been cold as hell here, so I haven’t been using the AC. I was thinking it could be a belt, maybe?

 

It’s your twin turbos.. you didn’t know your Tacoma had them?

 

Wooo wooo!

 

Have you installed an aftermarket CAI??

 

Completely stock

 

Suggest to look for loose intake connections.

Another source could be exhaust connections.

Check the radiator fan.

After that.........you may need a helper to run the throttle while you listen under the hood.

Noises can be very hard to isolate.

 

Because turbo bruh