Very faint idle tap 2012 5.4

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expyshamir

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hi guys, I have a 2012 Limited with 158k kms (98k miles) on the clock
I hear a very faint tapping noise when the car is idling. I might be just anxious for no reason, but it is a 5.4 after all. Here is a link of the video attached, please let me know if its something normal or any cause for concern. Thanks in advance!
5.4 idle
 

00XTL

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To me it just sounds like the fuel injectors actuating. if you have a stethoscope or a long screw driver you can put it up to the fuel injectors and see it the sounds matches up. if it dose then your good its normal operation. If the sounds dose not match up then you can use that same technique to isolate the sound. Hope this helps
 

Mikezr

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Could be a leak at the exhaust manifolds. Just for fun you could pull the valve covers and take a look at the rollers doesn't take long
 

Goofy173

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That's the phasers. Nothing wrong with them, yet.
 
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