"Crankcase ventilation" refers to the process of removing gases and pressure buildup from the engine's crankcase. It helps keep the engine running smoothly and prevents damage by allowing fresh air to enter and harmful gases to escape.
Full definition
New domed rocker covers house a patent - pending integrated positive
crankcase ventilation system that enhances oil life, reduces oil consumption and reduces exhaust emissions.
There are two different problems, leading to two different recalls: «740,561 cars [are being recalled for] a positive
crankcase ventilation valve heater that can short, melt, and ignite.
During World War II a different type
of crankcase ventilation had to be invented to allow tank engines to operate during deep fording operations, where the normal draft tube ventilator would have allowed water to enter the crankcase and destroy the engine.
Crankcase ventilation system failures can cause variety of problems, including vacuum leaks, Check Engine light with lean and misfire codes (P0300, P0171), idle regulation codes, and even screeching / whistling noise coming from the engine cover that changes when the dipstick is removed.
With this commercial grade, DPM targets the market of flexible thermoplastic - Positive
Crankcase Ventilation (PCV) tubes and Exhaust Gas Recirculation (EGR) sensor tubes.
Otherwise the valving in
the crankcase ventilation system tends to let oil accumulate in the inlet tract, which leads to blue smoke on start - up and a build - up of carbon around the inlet valves.
My understanding is that
crankcase ventilation is a universal feature in automobile engines and other modern internal combustion engines.
It's most likely oil that's been pushed up by the PCV (Positive
Crankcase Ventilation) hose.
What was the first tank engine that used
a crankcase ventilation?
That said, ICVs are easily fouled by oil from
the crankcase ventilation, if it doesn't go straight into the manifold.
The older engines I normally work on have
crankcase ventilation that just ventilates the crankcase vapours to the open air, so I suppose it's not that of a concern.
Normally these combustion products pressurize the crankcase slightly and then vent through the PCV (Positive
Crankcase Ventilation) system into the intake.
At first I thought I had an exhaust leak, but it turns out it's someting with
the crankcase ventilation.
A leak down tester will pressurize your combustion chambers and allow you to listen at your intake and exhaust valves for leaks as well as
your crankcase ventilation for head gasket and ring leaks.
Check the PCV (Positive
Crankcase Ventilation) valve to determine if it is operational.
The positive
crankcase ventilation (PCV) system is designed to prevent these gases from leaking into the...
We were told that, shortly after the first reported cases, Chrysler isolated the problem to
the crankcase ventilation system; hydrocarbons were entering the oil and breaking down the additives.
Efficiency is further reflected in a revised positive
crankcase ventilation (PCV) system, which is integrated in the intake manifold.
Problems with
the crankcase ventilation system, breather (PCV) valve and intake manifold are common.
The crankcase ventilation system (commonly known as PCV) is another trouble spot.
The PCV (Positive
Crankcase Ventilation) system is designed to remove fumes from the engine crankcase, and alleviate crankcase pressure which...
Combustion gas (such as piston ring blow - by) is removed from the crankcase via the PCV (positive
crankcase ventilation) system.