Fluttering / Rattling Noise

Carrington59

Member
Original poster
Joined
Oct 14, 2021
Messages
61
Location
Missouri
My Jeep (06 Rubicon, MT) has developed a fluttering/rattling/grinding noise under the hood the past couple weeks. Originally, it would only start when I was going 40+ mph. Now the noise starts when I get to 20. The nosie doesn't get any louder or faster with speed (once it starts) nor is it directly correlated to accelerating. As long as I am going 20 mph+, it is there, whether in gear or not. Any idea what it might be? Tough to tell if it is just under the hood or maybe from passenger side.
 
Here's what it sounds like. Phone is in passenger seat.