By the time you read this post, I will have already drilled a weep hole into my 2005 muffler.

The truck only has 25,000 miles, and is still under warranty, but the OEM muffler is starting to show signs of corrosion. I live in Phoenix, Arizona, so there is no snow/salt factor here. The problem is that the factory forgot to drill the weep hole into the muffler. I use the truck like every other week, but move it in and out of the garage a lot -- so the engine doesn't get a chance to evaporate the residual water that is trapped.

The issue is that the dealership will probably take cover behind the fact that I drilled the hole to deny a clain for a new muffler -- but I don't think it is worth the time to go and deal with all that hassle.

 

I drilled a weep hole within the 1st month of owning my truck. I saw the water coming from the front seam in the muffler. I drilled a hole about the size of a pencil and the water runs out nicely

 

Those stock mufflers belong on a motorhome. Our trucks deserve a real exhaust from the factory.

 

Pulled the whole thing off from cats back and it's now hanging in the rafters like a hunting prize (some prize, huh).

 

LOL I have mine in the garage too... and have an add on the clasified here to sell... no takers...WTF?? hehehe

 

OK, I guess I'm the only person that doesn't know... What is a "weep hole".

 

Water is a byproduct of combustion in an engine. The water escapes through the exhaust which is why sometimes you'll see water dripping out of the tailpipe of a running vehicle.

The probelm is that water gets trapped in the muffler and causes it to rust.

Most people think that exhaust systems rot from the outside, but on most newer vehicles they rot from the inside out.

The weep hole is in the bottom of the muffler so the water can escape.