AUTONET TV


PCV Valve: What Is It?

Posted October 24, 2016 3:24 AM

Most Bloomington drivers know something about preventive maintenance on a vehicle. We know we should routinely replace the oil and wiper blades and other fluids. But have you heard of a PCV valve ? This little car part needs to be replaced regularly or it can cause some serious problems in your vehicle engine.

PCV stands for Positive Crankcase Ventilation. The crankcase holds your motor oil and is located at the bottom of your engine.

When fuel is burned in your engine, it produces waste gases that are mostly vented out through your exhaust system. But some of these gases push their way past the pistons and into the crankcase. There, these gases can mix with motor oil to produce oil sludge, which can damage vehicle engine parts through corrosion and by clogging engine passages. Bloomington vehicle owners should be advised that if the engine is running at high speeds, these gases can also cause pressure inside the crankcase to build up. This pressure, in turn, can blow gaskets and damage seals, leading to oil leaks.

The waste gases that leave the engine are comprised of about 70% unburned fuel. They used to be vented off the crankcase into the atmosphere. But starting in 1964, laws mandated that these gases be recaptured. Manufacturers began installing PCV systems, which recycled the gases into the air intake system where they could be mixed with fuel and sent to the engine to be burned.

The PCV valve is a one-way valve attached to the crankcase. Waste gases exit the crankcase through the valve but cannot enter.

Over time, the waste gases leave deposits on the PCV valve that can gum it up. So it needs to be replaced occasionally. This is an inexpensive part of preventive maintenance that is often overlooked, but which can have very expensive consequences. It's good auto advice to keep this little valve clean and working well.

In order to maintain efficient circulation, the PCV system also has a breather tube that allows clean air to enter the crankcase. This air is usually filtered through the engine air filter. But some vehicles have a separate air filter for the breather tube called the breather element. If this is the case with your vehicle, proper maintenance of the PCV will include replacing this element. To find out whether your vehicle has this type of PCV system, check your owner's manual or ask your service advisor at AutoChoice Service Center Inc..

The PCV system reduces harmful vehicle emissions. The maintenance it requires is simple and inexpensive at AutoChoice Service Center Inc.. A fouled or damaged PCV system can lead to serious engine damage for Bloomington drivers.

Let's all learn to practice good car care. It's good for our wallets, and it's good for our Indiana environment.

AutoChoice Service Center Inc.
2009 S. Yost Ave.
Bloomington, Indiana 47403
812-339-9898



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Reviews

I had engine issues with one of my cars, and decided to give these guys the job to figure it out. They were very thorough and honest. I figured what some of the issues were to begin with, but didn't say anything just to see how they (AutoChoice) ran. Long story short, those guys are honest, extremely knowledgeable, I believe fair in their prices, and I wouldn't have a second thought of taking another vehicle to them. Now unfortunately for the motor...yep, it was toast!!!

, 03/14/2024

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Fast and friendly service, my pontiac died on me they got it in that day and it was fixed very quickly just a couple days so I didn't have to miss work and great prices.

, 03/01/2024

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Lloyd and the guys are great! My wife and I were unsure about finding a repair shop, and after reading the reviews, we decided to give AutoChoice a try. We took a car we were thinking of buying for a pre-purchase inspection and already liked the service from the start: fair prices, transparency, and clear communication. You don't feel like you're being taken advantage of at any point (unlike many other shops). Today, we brought in another car for some inspections and repairs and once again received excellent service! It's our go-to place in Bloomington for repair services! They really deserve the high reviews they have everywhere. We highly recommend it!!!

, 02/24/2024

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