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Misfire Noise

Anyone know what this noise is in the video occurring just before 3000rpm? Noise definitely from engine compartment. Truck hesitates under hard acceleration, recently had the stretched timing chain TSB completed and all new spark plugs and boots. Check engine light came on shortly after.
 

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This is something that has been discussed many times on here. It could be a bad coil or injector. There are many things it could be, but no one really knows for sure. I have the same problem with my 14. I am planning on changing all the coil packs out to see if that helps.
 
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