2004 Nissan Xterra exhaust system

2004 NISSAN XTERRA
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CATHYMETZ
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2004 Nissan Xterra 4 cyl Wheel Drive Type unknown Manual 41000 miles
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there is a small pinhole on the front of the muffler soneone told me thatit is suppose to be ther for condensation
Jan 13, 2008 at 10:41 PM
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MHPAUTOS
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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)
Jan 14, 2008 at 1:36 AM