What are Breathers?
Breathers are the other half of a crankcase emission system. A breather filter cleans the air that is drawn to the crankcase and later let out by the PCV valve.
How do Breathers Work?
Breather filters usually are contained in a slot or small box that connects to the air box then to crankcase. They clean the air that travels through it.
How are Breathers Made?
Most breathers are a block or square of media material that is cut or formed.
Why do Breathers Fail?
- Type of duty impacts life or failure
- They can become clogged and need to be changed every 12 months or 12,000 miles
What are Symptoms of Breather Failure?
- Rough idle
- Difficulty starting
- Poor fuel economy
- Check engine light illuminates
What are Consequences of Breather Failure?
- Car will not start
- Engine failure