Rattling noise between 4000 - 5000 rpm

Sounds like nails rattling in a mentos box and dripping water
Possibly vibration frequency dependant
Felt through gas pedal

Noticeable in these situations:
1st and 2nd gear pull
neutral
neutral with clutch depressed

2016 2tr 40k miles stock

 

i'm thinking it could be the cats heat shield, ill have to see in the morning

 

It was the exhaust system. I jacked my cat and the sound went away.

 

What did you have to do to fix this? I had a similar noise and it was an exhaust leak that was causing AFR to go lean and cause pinging.

 

I didnt make any repairs. All I did was verify the source of the noise. I'm not sure how to proceed with the "repair" seeing that all components involved tight and proper. Maybe weld in a flex pipe section if I ever put work in the exhaust. In my case i dont believe I have a leak so probably just a fluke of design.

 

In had some rattling a year or two ago, turned out to be the heat shield over the rear cat. One of the bolts rusted and it was loose. I just removed the shield and all is good.

 

can you post a video or picture of the area?