PCV Valve Service at KPS Princeton Garage in PrincetonPosted October 18, 2020 9:36 AM
Today, we are talking about your PCV valve. Unburnt fuel is forced into the crankcase as your engine runs. The PCV (positive crankcase ventilation) valve vents this unburnt fuel and oil vapors from the crankcase and sends it back into the air intake system to be burned in the engine. A clogged PCV will not allow these vapors to escape. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause vehicle engine corrosion, something we see occasionally at KPS Princeton Garage. At high speeds on NJ freeways, the pressure can build up to the point that gaskets and seals start to leak.
Back in the old days, vehicles were simply installed with a hose that vented these gases out into the atmosphere. But starting in the 1964 model year, environmental protection laws required that these gases be recycled back into the air intake system to be mixed with fuel and burned in the vehicle's engine.
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Linda Saffet, 01/20/2021
As has been the case for the last 15 years of patronizing your shop, I thank you for your advice, honesty, and respect for my budget. The car feels wonderful, the detail work makes this 10 year old vehicle seem new again. KPS is the only shop I would ever bring our three vehicles to for service. I highly recommend to anyone looking for an honest and reliable repair center.