10/27/2026
Notice your engine idling rough or surging slightly while sitting at a red light now that the weather is cooler? Check your PCV valve! This tiny one-way valve vents crankcase combustion gases back into the engine intake. Over time, oily sludge glazes the internal spring shut, or the rubber vacuum hose dry-rots and cracks in autumn air, which creates a hidden vacuum leak that throws off your air-fuel mixture.
Swapping a clogged PCV valve takes minutes and protects your engine seals from blowing out under pressure! Get it done at our shop soon.