2020 Acura TLX - high pitching noise under idle
 

Hey everyone,

I was at my buddy’s doing an oil change. Afterward with the hood still up, we decided to turn it on to check for leaks.

that’s when I started hearing a high pitched, ringing noise coming from the engine area. Not sure how long it’s been there. it seems to go away when I give it a throttle - mainly during idling.

video: https://youtube.com/shorts/vDhMwVAoucw

2020 Acura TLX
47k miles

thank you

Used 0W20 synthetic and filled between the 2 dots on dipstick? Used the correct oil filter? Your video doesn't appear to show valve cover gasket leaking onto the serpentine belt tensioner causing a noise.

This is an image from a cold-engine.
https://cimg4.ibsrv.net/gimg/acurazi...805a743361.png

Level should be between the 2 holes on the dipstick - check after three minutes after shutoff. I have same engine and don't have that noise. Check pulleys associated with serpentine belt, alternator, water pump and tensioner.