New ignition coils / grinding noise

Hello everyone. Hoping I can get some insight on this issue.
Replaced my spark plugs and ignition coils about a week ago after my check engine came on stating the problem. Switched all four out and fired it up with no issues. Once I took it on the road though, anytime I decelerated by downshifting, at around 2500 rpm, the engine (or something) makes a strange grinding noise. If I hold the clutch in or go below roughly 2500 rpm, it goes away. Any help is greatly appreciated.
Thank you.

2003 Tacoma 4cyl 2.4L 4x4 manual

 

you got a Video?

 

https://youtube.com/shorts/MpLNFVC73F8?feature=share

 

It just started after you worked on it...didnt do it at all before?

 

Correct.

 

i cant hear it well enough...you double checked everything under the hood..it sounds like a rattle to me

 

Yep. Just checked and some nuts fell off that weren’t tight enough. Will replace and see if it fixes it.