Drivers will know something is off whenever they smell a foreign odor in the cabin. An exhaust leak is a serious problem. Let’s take a look at why these leaks occur, and the common types of smells associated with this issue.
Why Do I Smell Exhaust Inside The Car?
Exhaust is designed to exit the back of the car. If it’s finding its way into the cabin, this means there is a leak in the system. This could be the result of a rusted muffler, bad gasket, or cracked pipe.
In some cases, it could be a faulty trunk or door seal that lets the gases seep through. If you ever smell exhaust, it is bad news. Carbon monoxide is odorless and toxic, so this issue needs to be taken seriously with immediate action.
Common Causes Of Exhaust Smell
There are a few common causes of exhaust smell, including the following:
- Idling with the rear window open.
- Exhaust leaks.
- Faulty trunk or door seals.
- Leaking heater core or exchanger.
Types Of Exhaust Smells
Let’s take a look at how most drivers experiencing an exhaust leak will describe the smell inside the cabin.
Sulfur
Drivers often describe the smell as either sulfur or rotten eggs. Typically, this means the catalytic converter has been damaged. As the engine burns fuel, harmful gases like hydrogen sulfide are produced.
These gases pass through the catalytic converter where they are transformed into less harmful forms. This conversion, however, may not occur if the converter is damaged. A failing converter can create strong odors while limiting the car’s performance, overall.
Gasoline
If the exhaust smells like gasoline, this is likely the result of an excessively rich air/fuel ratio. In this event, either too much fuel is entering the combustion or there is an insufficient amount of air getting in.
This can be caused by a few things, including a blocked air filter, damaged fuel injectors, or a defective mass airflow sensor. Visible black smoke could be seen coming from the tailpipe, as well.
Sweet
Sweet-smelling fumes coming from the exhaust can occur due to a damaged head gasket. This, in turn, can lead to hot coolant that leaks into the exhaust.
On contacting the engine, coolant emits some clouds of white smoke exiting the tailpipe. If left unattended, a coolant leak can cause the engine to overheat.
Regular Exhaust
Normally, regular exhaust smell is kind of musty and smoky. However, you could have an exhaust leak if you smell it inside the cabin.
This is a major problem that should be addressed right away. Contact the experienced team at Heath’s Auto Service for more information today!
Heath’s Auto Service In Scottsdale, AZ
At Heath’s Auto Service, we offer a comprehensive range of services and repairs to meet all your automotive needs. From routine maintenance like oil changes and tire rotations to more complex repairs involving brake systems, engine diagnostics, and transmission issues, our highly skilled technicians are equipped with the latest tools and technology to ensure your vehicle is serviced to the highest standards. Contact our team today!
