I have a 2005 5.4 4X4 Scab. Just bought it and I love it. I've noticed a leak recently that, strangely enough, comes out of an end seem on the muffler. I'm pretty sure it's water. Has anyone seen this? Is there some easy way to fix it like maybe drilling a small hole? or should I even worry about it? Someone mentioned muffler bearings.

 

Some mufflers do have a small hole drilled in them to drain...

 

My exhaust leaks water at startup at all the seams both in front, at, and behind the muffler (especially at cool/cold temps). It stops after the truck warms up. I think it is just condensation so I personally don't worry about it. Could be wrong though....

 

I figured condensation. I don't drive far to work which is when I normally notice it. Just didn't want to be the only one with this problem.