Help with whining noise

[philskeeter]

The searches IÂ’ve come across seem to all be people talking about the humming noise where the vehicle is running a systems check after the vehicle has been off a few hours. IÂ’ve heard that noise and am familiar with it and this is not the same noise. IÂ’ve got a 2023 4Runner with 8,000 miles and IÂ’ve heard this whining noise probably 15 times start the past month. The first few times was while I was sitting at a stop light. I thought steering pump, but when I turned my steering wheel while hearing the noise, it never changed. Then I started to hear it within a few minutes of shutting the vehicle off so I ruled out power steering pump and bearing or tensioner pulley. My next best guess is a vacuum leak? ItÂ’s coming from underneath the vehicle and seems like it is near the fuel tank. Is it a fuel pump noise? I couldnÂ’t post the video, so here is a link to hear the noise

IMG 2920 - YouTube

I havenÂ’t taken it to the dealer yet because this noise doesnÂ’t happen every time I turn the vehicle off. From past experience, they use not being able to recreate the noise as a reason to not fool with it. Thanks in advance!

 

[andreamoon]

I am having the same issue now. Did you find any solution to solve this whining noise?
geometry dash scratch

 

[Humble Leader]

I am having the same issue now. Did you find any solution to solve this whining noise?

I think it is definitely something to do with the fuel system. a smoke test would probably find the leak. if it's not a leak could be the charcoal canister. do you have a check engine light, poor performance and mileage?

 

[daronjh]

I typically leave the wife & kids at home & magically the whining stops.

 

[weberlukas74]

Check if the noise changes with the fuel level. Does it get louder when the tank is full or low? Also, inspect the fuel lines for any kinks or damage.
A faulty fuel pump relay can cause whining noises. The EVAP system might also make strange noises if there's a small leak or the purge valve isn't working right. A smoke test can help find leaks in this system.