PCV Valve: What Is It?

Most St. Peter 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. St. Peter 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 Autotronics of St. Peter.

The PCV system reduces harmful vehicle emissions. The maintenance it requires is simple and inexpensive at Autotronics of St. Peter. A fouled or damaged PCV system can lead to serious engine damage for St. Peter drivers.

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

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com

Speak Up: Talking with Your Autotronics of St. Peter Service Advisor

About 80% of the vehicles on St. Peter roads today are behind on their preventive maintenance schedules. That translates to about 160 million vehicles in the United States that aren’t performing as well as they could be – thousands right here in MN. Some of the maintenance issues are minor. Others represent serious safety concerns.

There are many reasons St. Peter drivers neglect their routine car care. Some of the more common ones are complacency, lack of confidence, lack of trust and budget issues.

Modern vehicles are amazingly reliable compared to their older counterparts. They can run for years without any repairs, and we sometimes translate that to mean they don’t need any maintenance. The trouble is that without maintenance, parts in the vehicle are gradually wearing out, fluids are getting dirty, oil is developing sludge — a lot of stuff is happening that we can’t see, and it is destroying the vehicle. The first time we learn there is a problem, we have a major repair bill on our hands.

Older vehicles just couldn’t keep going without frequent maintenance; they broke down without timely vehicle care. Modern vehicles are designed to keep running even when they’re not fully healthy. Unfortunately, that convenience has led some of us to become complacent and ignore vehicle care — until we have to fix something. And fixing something today takes a whole lot more than it used to.

Some people in St. Peter just don’t feel comfortable taking their vehicles to their local St. Peter service center. They don’t know much about engines or auto mechanics, so they don’t know what questions to ask. They don’t want to appear foolish or ignorant.

Your physician doesn’t expect you to understand what a ligament is or how it works. But if you have a problem with one, she’s going to explain to you what it is, what’s wrong with it and how it can be fixed. It’s in her best interest as well as yours to do so. You’ll both feel more comfortable with the treatment.

That’s what you can expect from the pros at Autotronics of St. Peter. They have to be highly trained and work with a lot of complex, high-tech systems. They don’t expect their St. Peter customers to understand car care. So ask questions. You need auto advice from a service specialist, just as you need medical advice from a doctor and financial advice from a financial advisor.

Which brings us to the next concern: trust. A lot of rumors fly around St. Peter about auto repair scams. You may have heard about some local auto shops taking advantage of customers and replacing parts that weren’t broken. Frankly, this is just bad business practice. St. Peter auto service centers won’t stay in business long if they’re engaged in this type of activity.

It’s in the best interest of St. Peter service centers to diagnose a problem correctly and fix it right the first time. That’s how they keep their businesses open.

Trust must be earned. But just as it took time for you to establish a relationship and rapport with your doctor, it will take time to build a relationship with your service center.

Also, realize that when your friendly and knowledgeable service advisor at Autotronics of St. Peter recommends routine maintenance, he is generally relying on your vehicle manufacturer’s recommendations. In other words, your trust lies both with your service advisor and your vehicle manufacturer. You’ll find that most of the service recommendations from Autotronics of St. Peter you receive coincide with what’s in your manual.

Those recommendations were set up by the engineers who designed your vehicle, not Autotronics of St. Peter. The team at Autotronics of St. Peter is just offering you a friendly reminder — a helpful reminder really, since most of us don’t post our owner’s manuals to our calendars.

Money is behind most neglect of vehicle maintenance. First, they worry that they can’t afford it. Second, they worry that they’re being overcharged.

The simple truth is, car care is like health care. We can’t afford not to have it. Preventive maintenance is cheap compared to repair work. It extends the lives of our vehicles and saves us money on fuel. It also makes our vehicles safer to drive, which can prevent accidents. Putting off preventive maintenance can be very expensive.

St. Peter area service centers have to be competitive. Like any business, they can’t afford to overcharge customers or they go out of business. But vehicle care today does cost more in MN than it used to. Vehicles are more sophisticated, complex and high-tech. That means technicians have to be better trained. They have to purchase high-tech diagnostic equipment and tools. They have to keep up with the latest advances in vehicle engineering and subscribe to computer databases. Like any business, they also have labor costs, insurance, rent, utilities, taxes, office supplies, etc.

If you are strapped for cash, Autotronics of St. Peter can offer auto advice to help you keep your car running safely and manage your budget. For example, let’s say you need new brake pads, transmission service and a new cabin air filter. A technician can’t ethically recommend you delay brake service: that creates a safety hazard for you and other St. Peter drivers. You need to get that done now. But they can let you know if the transmission service can wait a month and how long you can put off changing the cabin air filter. They can also estimate what these services will cost. That gives you the time and information you need to save up for the other services.

The key to modern car care is preventive maintenance. Our modern vehicles are safer, more fuel efficient and more reliable than ever before. But to keep them that way St. Peter drivers have to be more proactive about caring for them. It’s good to know there are knowledgeable professionals at Autotronics of St. Peter who can help us do just that.

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com

Timing Belt Service to Save Big Bucks in St. Peter

Your engine is like a finely choreographed dance. All the parts have to work together. If the timing is off at the ballet, dancers crash into each other and fall down. It the timing is off in your engine, it may not run at all. One of the most intricate dances in your engine has to do with the combustion cycle.

Your vehicle engine has cylinders in which a piston travels up and down. At the top of the cylinders are valves that open to bring in the air and fuel. And there are valves that open to let out the exhaust after the fuel has been burned.

Call Autotronics of St. Peter at 507.934.9290 for answers about your timing belt, or drop by our St. Peter, MN, service center on 111 Jefferson Avenue.

It’s critical that the values be timed to open and close at precisely the right time in the combustion cycle, or the engine will run poorly or not at all.

The timing belt is responsible for rotating the shafts that control the valves. It’s vital and precision work. Timing belts are made of very tough, flexible material. They can last a long time. But they eventually wear out and can break. The consequences can be disastrous.

In some engines, the valves actually protrude far enough into the cylinders that they could come in contact with the piston. If the timing belt breaks, the pistons will smash into the valves. Valves get bent or broken. If the engine is spinning fast enough, the broken parts will shred the cylinder head as well. Repairing this damage can cost several thousand dollars.

It’s a sad day when this happens; especially since it usually can be avoided. Manufacturers have issued recommendations for when you should replace your timing belt. For some engines, it’s at 60,000 miles/97,000 km. For others it’s at 90,000 miles/145,000 km or more. If you’re approaching 60,000 miles/97,000 km or have passed it, make sure you check your owner’s manual or with your St. Peter auto service advisor at Autotronics of St. Peter for when the timing belt should be replaced. Don’t let this one slip by.

Now some timing belts are visible and can be inspected. Others are hidden under a protective cover and are hard to get to. Some timing belts also drive the water pump. If you have a leaky water pump, the coolant will contaminate the timing belt and could make it fail sooner. So if you have this kind of engine, get it in to Autotronics of St. Peter for an inspection right away if you have a coolant leak.

Most people in the St. Peter area with this engine design end up with a new timing belt when they replace the water pump. And when you’re having your timing belt replaced on schedule, check with your Autotronics of St. Peter auto service advisor to see if it makes sense to install a new water pump, even if it isn’t currently having problems, since most of the labor is already being done any way for the timing belt replacement.

As a heads up; larger engines will often have metal timing chains rather than belts. The chains don’t need to be replaced like belts.

We’ve already told you how very expensive it can be to get your car running again after a timing belt fails. You also need to know that replacing the timing belt is very labor intensive and is one of the most costly maintenance services you will have. So if you will be at the point where your timing belt should be replaced in the next year or so, ask for an estimate from Autotronics of St. Peter in St. Peter, MN, so you can begin to prepare for the expense.

We at Autotronics of St. Peter, your St. Peter service center, can be a valuable partner. Please take advantage of our knowledge and experience.

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com