PCV valve
The PCV valve lets the engine’s waste gases go back into the air intake instead of leaking out. This keeps the engine cleaner and helps it run better.
The Positive Crankcase Ventilation (PCV) valve recirculates blow‑by gases from the engine crankcase back into the intake system, reducing emissions and preventing oil contamination.
Hear It Discussed
"...you got to check that PCV system too. You got a PCV valve for it and replace that."
Car Questions Live and Loosing Your Collection in a Fire Under The Hood show
"What I see is cumulative ... sticking cam phasers, getting noisy sledge accumulation in certain areas of valve covers and cylinder heads that just star of oil PCV valve systems..."
Ron Ananian, The Car Doctor - May 16, 2026 - Hour 2 Ron Ananian The Car Doctor
"Like, for example, the PCV valve in a lot of BMW and Mini engines. Look, back in the day, you could just undo the valve, put a new one in"
Ep 50: WHY MECHANICS HATE THESE CARS! The ReDriven Podcast
Cars Known For This
Episodes Mentioning "PCV valve"
Ep 50: WHY MECHANICS HATE THESE CARS!
The ReDriven Podcast
Ron Ananian, The Car Doctor - May 16, 2026 - Hour 2
Ron Ananian The Car Doctor
Ron Ananian, The Car Doctor - Classic Car Doctor - September 26, 2015 - Hour 2 - Why Are So Many Cars Being Recalled?
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Under The Hood show
S&YE221 - Swampback Adventures
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The Car Show with Dane Donovan - 1/17/2026
The Car Show with Dale and Dane Donovan
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Under The Hood show
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