Hello guys I noticed that there’s a strange noise coming near the firewall of the engine bay right where my fuel rail is. I had the valve cover replaced in 2/23. I know there is an oil leak and have the gasket on order to replace but could it possibly be related or is this normal? The noise was consistent until I turned the ac on and off then it started with the rhythm heard in the video. I turned the vehicle off and on again and the noise went away. Attached in the link is a video of the noise.
https://youtube.com/shorts/ahG4WO2UmQ4?feature=shared