I have 2008 Acura TL that I bought last Decemeber. It currently has 87,000 miles on it and has been a great car so far. The last couple of weeks I have noticed that when the car is idling I hear a rattling noice. Any idea on what this might be, or where to start on how to address it?

Any advice would be greatly appreciated! Thanks!

 

What kind of rattling? Maybe one of the clamps or heat shield on the exhaust is loose?

 

Peter 6 is probably correct. My heat shields on my cats were making tons of noise, I deleted them

 

I did a mid and rear muffler delete and after cutting them out all 3 of them had about a 1.5 inch rust hole in the tops. That could be your problem or one of the plastic panels in the engine bay could be loose. My solution is usually just to start shaking and tapping on everything in the area where I think the rattling is coming from until I find something loose.