Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Re: Help - Loud Exhaust
Have somebody stand behind the Jeep while you produce the noise. He should be able to tell you if the noise is coming out of the tailpipe. If it is, the problem is likely to just be a rusted out muffler. It's not unusual for the baffles in the muffler to rust and break loose. When that happens you can get some odd results, but the outside of the muffler can still look fine.
If that doesn't narrow it down, have the buddy listen under the hood. It could be a leak at the exhaust manifold.