Vibration noise when accelerating?
JK Newbie
Joined: May 2013
Posts: 1
Likes: 0
From: Ct
It's most likely a heat shield (there's tons of that stuff under there) Mine did it in two places, and just snapped another weld and started again. It usually comes on around 2000-2500 RPM and I don't have to be hard on the gas - just accelerating. When we are having our shutdown over Christmas gonna get under it and tack it all back into place instead of just bending parts out a little. The first two were under the hood on each side, now it is underneath the body.
I tried to have it covered under the lifetime, they shot that down and offered to replace the exhaust (with shielding) for $1,500
I'm in an apartment, but my buddy has a 3 car garage and a full weld shop in the third bay, an hour climbing around underneath followed by a few
and it'll be all good again.
I tried to have it covered under the lifetime, they shot that down and offered to replace the exhaust (with shielding) for $1,500
I'm in an apartment, but my buddy has a 3 car garage and a full weld shop in the third bay, an hour climbing around underneath followed by a few
and it'll be all good again.
JK Enthusiast
Joined: Feb 2009
Posts: 301
Likes: 1
From: Thee Great Pacific Northwest, US
Heat shield!
Check the heatshield which covers the exhaust as it goes back sideways, parallel to the transmission crossmember.
I'll bet $20 that your shield has a tiny little crack where the pos tackweld has separated from the exhaust pipe.
That's where the rattle noise comes from when you get to 2500-3000 rpm.
Check the heatshield which covers the exhaust as it goes back sideways, parallel to the transmission crossmember.
I'll bet $20 that your shield has a tiny little crack where the pos tackweld has separated from the exhaust pipe.
That's where the rattle noise comes from when you get to 2500-3000 rpm.
JK Newbie
Joined: Jan 2013
Posts: 48
Likes: 0
From: Ft. Campbell, Ky
My 2010 started doing this one day. It turned out being debris in the skid plates. I'm sure you all have checked this out, but some times it something simple as that. It started rattling like hell just as you described. Finally a buddy climbed under neath while I hit the gas and noticed it was gravel and dried mud rattling in the skid plates. Hope yall figure it out.
