Positive Crankcase Ventilation Valve. Valve Control.
PCV Valve.
- Ventilates harmful gases so they don't enter your engine
- When clogged or damaged can cause high engine pressure or gasket failure
- Replacement best left to a professional
The Positive Crankcase Ventilation valve, or PCV Valve, recycles toxic gasses exhaled from the crankcase in your INFINITI. The valve connects to the crankcase, which carries engine oil. When fuel is burned within the engine, the motor oil in the crankcase creates emissions that are toxic to the interior of your INFINITI's engine and the earth. Instead of allowing harmful gasses to get into your engine and create sludge that can ruin your INFINITI, the PCV Valve gives the gases a place to escape. Once they enter the combustion chamber, the gases are burned. Lastly, the gasses are expelled into the air as a less-damaging exhaust.
This small, but important part mitigates a large amount of harmful gasses from escaping, while providing proper ventilation within the crankcase. If a PCV Valve becomes damaged, it can lead to issues in your engine. A clogged or closed valve may lead to high pressure in your engine, a blown gasket, oil leaks, high-pitched noises, unwanted engine moisture, or buggy sensors. Occasionally a PCV Valve becomes stuck open. When this happens, it can lead to black smoke, loud noises while your engine idles, difficulting starting the engine, or motor oil in the PCV Valve.
Consistent maintenance checks can keep your PCV Valve from becoming stuck in the first place. However, if the PCV Valve in your INFINITI needs to be fixed, visit a local INFINITI auto care shop for repair, unless you have automotive experience. Get the job done right and don't take unnecessary risks with your INFINITI!
You can order a replacement Engine PCV Valve for your INFINITI QX56 or INFINITI QX80 online. After you receive the genuine Engine PCV Valve, visit your nearest INFINITI service center. See the What This Fits tab for specific fitment info.
Fits QX56, QX80