Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

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-   Engine, Exhaust, Transmission (https://www.ft86club.com/forums/forumdisplay.php?f=8)
-   -   Weird whining noise when car is in ACC from engine bay [video] (https://www.ft86club.com/forums/showthread.php?t=118714)

dostoyevsky 05-19-2017 07:05 PM

Weird whining noise when car is in ACC from engine bay [video]
 
https://youtu.be/v5Q0DzBgrGk

JMon85 05-19-2017 08:54 PM

Maybe fuel pump or the head lights? My head lights hum like that but not as loud.

tCsonfrs 05-19-2017 09:45 PM

It;s related to the power for the throttle plate, completely normal

Ultramaroon 05-19-2017 10:13 PM

Pop the hood and have a friend work the accelerator while you listen, with the engine off, of course. Put your hand right onto the throttle body. It's rewarding to really understand a mysterious sound.


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