2004 Nissan Xterra exhaust system

CATHYMETZ

MEMBER
2004 NISSAN XTERRA

Other Category problem
2004 Nissan Xterra 4 cyl Wheel Drive Type unknown Manual 41000 miles

there is a small pinhole on the front of the muffler soneone told me thatit is suppose to be ther for condensation

Sunday, January 13th, 2008 AT 10:41 PM

1 Reply

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

Some mufflers do have a small drain hole, H2o is a by product of combustion and when the engine &exhaust is cool the water will condense and lie in the pipes and muffler, typical is a 5 min round trip to the store, this hole will help the water drain away as if it sits there, it will prematurely start to rust out the exhaust.

Mark (mhpautos)