Once you remove the valve, shake it with your hand. Most vehicles come equipped with a valve that is nothing more than, a spring-loaded device.Some car manufacturers recommend replacing the filter, every 30,000 miles or so. On some engines, you’ll find a mesh filter underneath the valve.Because, it’s more likely to have a more precise calibration, for your specific engine model. Regardless of the type of PCV valve your engine uses always buy a quality brand valve. Other valves incorporate heating elements and cost more. As a result, many car owners just replace it, every service interval. Many engine models use a simple, inexpensive valve.Or, simply replace those components along with the PCV valve. If you find the hoses filled with slime clean them with solvent or lacquer thinner and replace the valve. Carefully disconnect the valve and any system hoses and visually inspect them.Replace one or more of these components as necessary. Rubber components like grommets O-rings, and hoses swell and turn hard and brittle after constant exposure to high temperatures. PCV Valve Flow Operation Luckily, It Doesn’t Take Much To Check The System:
PCV VALVE IN A 2009 HONDA ACCORD 3.5 V6 MANUAL
So, if you are not familiar with the PCV system in your vehicle or can’t find the valve buy the service manual for your particular vehicle make and model from a local auto parts store. Still, you can check the restrictor, hoses and other components. Others may have a simple restrictor in place. Instead, you’ll find a simple vacuum hose going from the valve cover to an air inlet duct. Also, keep in mind that some new models, don’t have a PCV valve at all. Also, depending on your particular model, you may find the valve on a rubber grommet on the valve cover on a breather opening around the intake manifold or to one side of the engine block. So, to start checking the PCV system in your vehicle first locate the PCV valve and its related components. However, a more frequent system inspection, helps prevent costly repairs and keep the engine running smoothly. As a result, some suggest servicing the system, every 20,000 or 50,000 miles. Unfortunately, many car manufacturers are not strict, about PCV system maintenance. However, a diagnostic computer may point to a Mass Air Flow or Oxygen Sensor failure instead making it harder for you to detect the real source of the problem. A PCV Valve Stuck Open Can Trigger The “Check Engine” Light In addition, a PCV valve stuck open can trigger the “check engine” light, due to increased air flow.
Still, a small amount of the gases in the combustion chambers, find their way into the crankcase. So, after each combustion process, the exhaust valve routes these gases into the exhaust system where the catalytic converter turns them into much less toxic fumes, before releasing them into the atmosphere.