What is a breather box on a Volvo?
What is a PCV breather system? A PCV (positive crankcase ventilation) breather system is designed to regulate hazardous fumes from your vehicle. As your engine runs, combustion gases escape from the combustion chamber, finding their way into the crankcase of your engine.
What happens if your PCV valve goes bad?
As the PCV valve starts going bad, the performance of your vehicle will get worse. This can be exhibited by a buildup of pressure in the exhaust or the engine could stall out. When this happens, the fuel and air mixture is diluted causing your vehicle to run poorly and lean out.
What does a Volvo oil trap do?
This genuine Volvo PCV valve oil trap is an essential component of your Volvo’s power train. It allows internal pressure built up in the engine to be released safely instead of popping seals or gaskets that could be costly and timely to replace.
How does the breather work on a Volvo?
It does this from a location nearly opposite of the breather location. This connection creates a slight vacuum in the crankcase that draws gasses in a direction from the breather into the intake manifold and through the PCV valve, where they are re-burned with a fresh charge of air.
How much does it cost to replace a Volvo breather box?
My car was fine before I took it in…they said that it would be $700 to replace the breather box…Can they patch up the hole, or is the hole that he is seeing apart of the breather box, which allows air pressure to release…
Where is the PCV breather located in the engine?
In naturally aspirated engines, the PCV valve connects the crankcase to the intake manifold. It does this from a location nearly opposite of the breather location.
What kind of valve does a Volvo use?
Some Volvos have used a PCV valve of 1960s design that has been called an anti-backfire valve. When it fails the idle will be affected and oil might leak to the back of the engine and out the dipstick tube and the brake pedal might become more difficult to press.