CALL US: (541) 752-2263
797 NE Circle Blvd, Corvallis, OR 97330


Clayton's Auto Service Automotive Tips: Diagnostic Service

Posted January 29, 2018 9:16 AM

Imagine waking up one morning with a stomach ache. You pick up the phone, call the doctor’s office and say, “I’ve got a really bad tummy ache. How much will it cost to make me feel better?” Of course you wouldn’t do that. You know that there could be a lot of reasons for your symptoms and that the doctor will have to examine you, ask some questions and probably run some tests before she can tell you what’s wrong and give you treatment options.

This same scenario plays out every day at Oregon auto repair facilities. When the cause of the concern isn’t obvious, the car will need to undergo a diagnostic examination. The typical car has about 30,000 parts, including several networked computers and miles of wiring. Finding exactly what is wrong can be very complicated and take some time. The most experienced technicians at Clayton's Auto Service in Corvallis are the ones who tackle the difficult diagnostic jobs. Once they have determined the cause of the trouble, they can work out the plan for how to fix it and tell you how much it will cost.

When you think about it this way, it makes perfect sense that, 1) the Clayton's Auto Service service advisor cannot provide an estimate before the diagnosis is done, and 2) there is a charge for auto diagnostic services in Corvallis. You expect to pay for an office visit to the doctor and for any necessary tests before you can be presented with your treatment options and costs; same goes for your vehicle.

We know it can be frustrating for Corvallis drivers when something is wrong with your car and you aren’t sure what is going to be involved in getting it fixed. We are passionate about helping you through the process, communicating with you at each step along the way. We have highly trained diagnostic technicians and technologically-advanced diagnostic equipment to uncover the cause of your trouble. We use quality replacement parts to help make sure you stay on the road after the repair is done. That’s our prescription for automotive peace of mind.

Give us a call.

Clayton's Auto Service
797 NE Circle Blvd
Corvallis, Oregon 97330

At Clayton's Auto Service we install quality NAPA replacement parts.


PCV Valve: What Is It?

Posted September 29, 2017 1:14 AM

Most Corvallis 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. Corvallis 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 Clayton's Auto Service.

The PCV system reduces harmful vehicle emissions. The maintenance it requires is simple and inexpensive at Clayton's Auto Service. A fouled or damaged PCV system can lead to serious engine damage for Corvallis drivers.

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

Clayton's Auto Service
797 NE Circle Blvd
Corvallis, Oregon 97330

Exhaust Service at Clayton's Auto Service in Corvallis

Posted February 21, 2017 10:37 AM

Whenever they hear the term "exhaust service," most Corvallis residents think about exhaust pipes and mufflers. Well, actually, exhaust service at Clayton's Auto Service is a lot more comprehensive these days. For example, catalytic converters were mandated in 1976 and on-board emission control computers in 1990. Governmental emissions requirements have forced manufacturers to come up with much more sophisticated ways to comply with environmental regulations.

Exhaust service has really become exhaust and emissions service. High-tech computer controlled emissions devices are now a big part of exhaust service. Because it is so sophisticated, your recommends you have your emission system checked out by a qualified Corvallis exhaust technician regularly to make sure everything is working right - usually every 6 months or 10,000 miles/16,000 kilometers.

If your Check Engine light comes on, especially if it's flashing, get your car looked at right away. Technicians at Clayton's Auto Service in Corvallis handle emission problems everyday. You might have exhaust or emissions trouble if your car is difficult to start, runs rough, is noisy or smoking. Call Clayton's Auto Service at 541-752-2263 to schedule an appointment if you experience these problems.

Let's review the exhaust system. We will start from the top with the exhaust manifold. That is the part that attaches to the engine and collects the exhaust from the cylinders and directs it into the exhaust pipe. Exhaust gaskets help seal the connection with the manifold and various other joints along the way. If the manifold is cracked or loose or a gasket is leaking, gases could escape into the passenger compartment where you ride. Carbon monoxide can be deadly, so it is important that your exhaust system doesn't leak. The exhaust pipes connect the various components. They can rust or be damaged by a rock, so they need to be inspected periodically.

Next is the catalytic converter. This part looks like a muffler. It changes chemicals that are dangerous to your health and our Corvallis environment into harmless carbon dioxide and water. It doesn't require any maintenance itself. But eventually they wear out. Corvallis drivers find this out when their car fails an emissions inspection.

Now the muffler. Its main job is to quiet engine noises. Mufflers work by either absorbing or baffling sound. And you can actually customize your car's sound with different mufflers - anything from whisper quiet to bad-boy rumbley. Rusted or road-damaged mufflers can leak and need to be replaced right away. Talk to your friendly and knowledgeable service advisor at Clayton's Auto Service .

The exhaust system is attached to the vehicle by a series of hangers and clamps. These fasteners hold the system in place. When hangers come loose or break, hot exhaust components can touch and melt wires, hoses and lines.

Finally, we end at the tailpipe. This is the final outlet for the exhaust. These can be plain-Jane or pretty flashy. Also, the oxygen sensors monitor the oxygen content of the exhaust so the engine control computer can adjust the fuel-to-air mix to keep the car running right.

Exhaust and emissions service at Clayton's Auto Service in Corvallis covers plain old pipes and high-tech computers. It impacts everything from life-and-death safety due to exhaust leaks to fine-tuning the sound of your ride.

Clayton's Auto Service
797 NE Circle Blvd
Corvallis, Oregon 97330

Positive Crankcase Ventilation – PCV Valve Service at Clayton's Auto Service

Posted July 11, 2016 9:37 AM

Hello Corvallis! Did you know that the first federally-mandated emissions control device was introduced in the 1960's? The Positive Crankcase Ventilation valve, or PCV valve, has been installed in Oregon vehicles since 1964 and represents the first legislation by the United States government to regulate harmful emissions as well as to improve performance in the country's vehicles.

The PCV valve, as you can probably guess, is located on the crankcase. The crankcase is the lowest part of a vehicle's engine. It houses the crankshaft and the engine oil. The crankshaft connects to the pistons that power the engine.

Pistons are pushed down when fuel is burned in an engine. This causes the crankshaft to rotate, which sends power to the transmission.  It ultimately turns the axles and causes the vehicle to move. Some of the gases released by the burning fuel squeeze around the pistons and down into the crankcase.

If the escaped gases mix with the engine oil in the crankcase, oil sludge develops. This sludge has the consistency of petroleum jelly and can cause damage by clogging up passageways in the engine. Further, escaped gases can build up pressure inside the crankcase that can blow out seals and gaskets.

Before 1964, a hose was attached to the crankcase that vented escaped gases out into the air. These gases contained about 70% unburned fuel as well as harmful emissions. The PCV valve was designed to curb these harmful emissions as well as recapture unburned fuel.

The PCV valve is a small, one-way valve that allows escaped gases to exit the crankcase. The gases are then routed into the intake system so they can be re-burned in the engine. Fresh air enters the crankcase through a breather tube to facilitate this circulation and keep the air in the crankcase clean.

The PCV valve, like most working parts on a vehicle, will wear out over time. Usually it simply gets gummed up. Preventive maintenance, including routine oil changes at Clayton's Auto Service in Corvallis, will extend the life of the valve, but eventually it will have to be replaced. A sticking PCV valve won't allow gases to circulate properly, which can increase pressure in the crankcase. Over time, that pressure will lead to oil leaks.

Your vehicle manufacturer recommends that a PCV valve be replaced every 20,000 to 50,000 miles (32,000 to 80,000 kilometers), depending on the vehicle and Corvallis driving conditions. It's an inexpensive repair but may not be included in the maintenance schedule in your owner's manual.  So if you're looking for auto advice about the PCV valve, you may have to ask our pros at Clayton's Auto Service.

Taking care of our PCV valve protects the environment in Oregon and improves vehicle performance. It's just part of good vehicle care for Corvallis drivers and a way all of us can do our part to improve the world we live in.

Clayton's Auto Service
797 NE Circle Blvd
Corvallis, Oregon 97330

Exhaust Service at Clayton's Auto Service: Passing the Smell Test

Posted September 30, 2015 9:00 AM

The exhaust system on a vehicle is more complex than most Corvallis residents realize. It contains everything from old-fashioned pipes and clamps to sophisticated computers and sensors. All Oregon folks know a properly functioning exhaust system is good for the environment, but sometimes we forget that a damaged exhaust system can be deadly. That's why preventive maintenance on your exhaust system is so important. We can help you with that at Clayton's Auto Service in Corvallis.

The exhaust manifold is the first component in your exhaust system. The manifold is attached to the engine. It collects the gases that are produced by the engine and directs them into the exhaust pipes. At this point, these gases are both hot and chemically dangerous.

One of the gases produced in your engine is carbon monoxide. This gas is colorless and odorless. Breathing it can cause headaches, dizziness, nausea and drowsiness. Continue breathing it and you will die.

To keep this gas and others from entering your vehicle passenger compartment, the connections from the manifold to the engine and from the manifold to the exhaust pipes are sealed with gaskets. These connections should be routinely inspected at Clayton's Auto Service for cracks and to check if they have come loose.

The exhaust pipes can also get damaged, allowing dangerous gases to leak into your passenger compartment. These pipes can rust or be dented or broken by rocks and other roadway debris, so they need to be inspected regularly.

The catalytic converter is the next component in your vehicle exhaust system. You can breathe a sigh of relief now, because this is where the dangerous engine gases are converted into carbon dioxide and water, greatly reducing the amount of harmful emissions in your exhaust. You'll also be happy to know that your catalytic converter doesn't require maintenance. However, it will wear out. If you fail an emissions inspection because of a faulty catalytic converter, you need to replace it.

The muffler's job is far less critical, but far more noticeable, than the catalytic converter's. It dampens or absorbs the noise from the engine. Most Corvallis residents don't realize that we can actually customize the noise our car makes with a custom muffler. You can upgrade to a muffler that will make your car sleuth-quiet, or you can advertise your presence in Corvallis with a sassy rumble.

Mufflers can also rust or be damaged by road debris. But just because their main function is to dampen out engine noise doesn't mean they can be ignored. If your muffler is leaking, you need to get it replaced quickly. Exhaust fumes need to exit through your tailpipe, not your muffler.

The exhaust pipe contains at least one oxygen sensor. The sensor monitors the oxygen content of the exhaust, which allows it to adjust the fuel-to-air ratio in the engine. This keeps your vehicle engine running smoothly and maintains good fuel economy. So, besides keeping you and the environment healthy, a well-maintained exhaust system also keeps your vehicle healthy. The tailpipe itself can rust or get damaged by road debris, so it needs a quick inspection once in a while, too.

The whole exhaust system is mounted on the vehicle with clamps and hangers. These clamps and hangers can come loose, rust or get dinged up by road debris. Remember that the gases in your exhaust system are hot, so the exhaust system itself gets hot. The clamps and hangers keep the exhaust system attached to the vehicle, but they also prevent the heated components from touching things they shouldn't. If you don't inspect and replace broken, loose or damaged clamps, you may end up with melted wires, hoses or lines. And that can spell some expensive repairs.

You should schedule an exhaust system inspection as recommended in your vehicle owner's manual. Because this system is critical to your health and the health of your car, and because of its sophistication and complexity, you need to have the work done at a qualified service center such as Clayton's Auto Service in Corvallis.

Maintaining your emissions and exhaust system is not just good auto advice: it's good health advice for all Corvallis residents and their families.

Clayton's Auto Service
797 NE Circle Blvd
Corvallis, Oregon 97330