The muffler is surely an important component of an engine's exhaust method. This muffler can be found nearby the again of the auto, as well as intent should be to slow up the sound manufactured from the particular exhaust process. It also blows the particular exhaust un wanted gas properly away the particular vehicle's method. Though companies intended for frequent check-ups or alternative will not program the particular muffler, you need to learn to learn if a muffler is actually busted as it can need replacing or split. The defective muffler could potentially cause considerable sound smog along with create a new threat intended for some of the vehicle's passengers.

IF it is not supposed to be there, and it is small, a screw might fill the hole. IF it is a drain hole, then leave it alone. Consult your dealer. Regarding the carbon monoxide, if the muffler is at the rear of the vehicle, it will not be problem. However, I have known people who had a mid-car muffler that was bad. After experiencing very bad headaches, the doctor confirmed their poisoning. So, you are wise to ask this question.

As others say, a small, well-formed hole at the bottom of the back of the muffler is a weep hole. Do not plug it up; that can reduce the life of the muffler drastically by letting acidified water collect during short trips.

No generally not a big deal as long as your muffler isn't directly under your cab. I had a hole in mine on my truck for about 6 months and there was no problem besides it was really loud. I later took off the muffler completely and had a glass pac sitting under my truck and for a year I haven't smelled any exhaust in the cab. Over all is it safe? Not really because there's always the possibility when your iddling. Is it really a problem you need to fix? Not really! There's a pretty low chance it'll hurt you especially if your cab is pretty well sealed.

If it is a small perfect hole, the manufacturer out this here for evaporative purposes and it should be left alone so that it can drain water. If it is a rusty imperfect he I would replace the muffler

Most all mufflers have a small drain hole to remove condensation to keep muffler from rusting from inside out. It will not cause carbon monoxide poisoning.

If it is a drain hole (I didn't know they had drain holes myself) but if it is it is alright. If it is a small rust hole it is no problem at all but it will get bigger. Then it will be a noise problem only. But you might as well get a whole new exhaust system if it is rust.

It lets the water out.

Water occurs after you burn fuel, as a byproduct.

The chemistry is there because the elements and condensation requirements for water are occurring.

In the UK we can buy a heat hardening putty that works well and lasts. Motor accessory shops should sell it where you are.

if it,s a small hole then it,s probably a drain hole for moisture and that,s natural for that hole to be there !

There is a small hole at the back of the muffler could this cause a carbon monoxide and is it safe to drive it's a ford contour it doesn't make an noise and its not acting up I just noticed a small hole with fluid leaking out

use silcone to fill up the hole