Odd metallic jingling sound from engine bay at idle

[S2K Void Filler]

So I will admit I’m an idiot when it comes to cars maintenance—just go by the manual service intervals and enjoy them.

So I was in the drive thru the other day and noticed this metallic jingling sound that you can’t miss from the videos—it developed out of nowhere—and could even hear it from the cabin. I come home and inspect further as you can see in the attached clips. I’m not talking about the normal ticking sound, but the metallic jingling sound if you listen closely. What could this be?

To make things more confusing, this sound is not as pronounced now—you can’t hear it from the cabin anymore. I’ve already made an appointment with Acura for Monday (takes about a week or so to get in) at the service department that I’m considering cancelling because I don’t want to waste their time if his was a one off issue that may be normal?

What do you think?

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[Dvs1270]

Wastegate (higher pitched ringing sound) & normal healthy Honda valve ticking.

 

[Victorofhavoc]

Yeah what he said^. "normal"

The wastegate has a duty cycle of how it moves to control and smooth boost. In certain conditions it just moves a tiny bit at high rate and the jingle comes from the multipart arm that moves back and forth (you can see it on top of the turbo and it runs under the heat shield there). If you wiggle it when off (careful, can get crazy stupid hot) you can hear and feel the play that causes it.

I put a washer in to stop it and it helped, but the issue is the rivet part of it. No way to fix that unfortunately.

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