Parts Category

PCV Valve Service At The Organic Mechanic In Asheville

The PCV Valve is a little, inexpensive part that does a big job for Asheville drivers. PCV stands for Positive Crankcase Ventilation.

The crankcase is the bottom area of the engine that holds the oil. When the car engine’s running, fuel is burned to generate power. Most of the exhaust from combustion goes out through the exhaust system. But some exhaust blows by the pistons and goes into the lower engine, or crankcase.

These hot gases are about seventy percent unburned fuel. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause car engine corrosion, something we see occasionally at The Organic Mechanic. At high speeds on Asheville freeways, the pressure can build up to the point that gaskets and seals start to leak.

Back in the old days, engine makers simply installed a hose that vented these gases out into the atmosphere. But starting in the 1964 model year, laws mandated that these gases be recycled back into the air intake system to be mixed with fuel and burned in the car's engine.

This is much better for the environment and it saves gas too. (Budget-conscious Asheville drivers take note!) The little valve that controls all this action is the PCV valve. The PCV valve lets gases out of the engine, but won’t let anything back in. Over time, the vented gases will gum up the PCV valve and it won’t work well. That can lead to all of the problems I’ve already described, oil leaks, excessive oil consumption and wasted gas.

Fortunately, it’s very easy to test the PCV Valve at The Organic Mechanic and quick and inexpensive to replace. Even so, it’s often overlooked because many Asheville drivers don’t know about it. Check your car owner’s manual or ask your The Organic Mechanic service advisor. If this is the first time you’ve heard of a PCV valve, you might be in line for a replacement.

There’s another aspect to the PCV system. In order for the valve to work correctly, it needs a little clean air to come in. This is done through a breather tube that gets some filtered air from the engine air filter. Now some vehicles have a small separate air filter for the breather tube called the breather element. That’ll need to be replaced at The Organic Mechanic when it gets dirty.

Please ask your honest Asheville service advisor about your PCV valve. For the price of a couple of burger combo meals in Asheville, you can avoid some very expensive deep engine repairs.

Emergency Items For Your car

Local Hendersonville roadside emergencies can range from a flat tire downtown to being stranded in a snowy ravine for three days. So you may want to consider a basic emergency kit to keep in the car at all times and a travel kit tailored to a specific trip.

Your close-to-home kit for around Asheville would have some basic items to work on your car: everything you need to change a tire, gloves, a couple quarts of oil, some antifreeze and water. A can of tire inflator is a great temporary fix for minor flats. You'll also want jumper cables or a booster box, flares, a flashlight and some basic hand tools.

Now for your comfort and safety: a first aid kit, drinkable water, high calorie food (like energy bars), blankets, toilet paper, cell phone, towel, hat and boots. Keep some change for a pay phone, emergency cash and a credit card.

People who live in areas with frequent severe weather or earthquakes may want to carry provisions for longer emergencies.

For trips away from home, consider the weather and geography as you assemble your emergency supplies. You'll need to have a source of light and heat and will want to provide protection against the elements as well as adequate food and water for everyone in the car.

Always tell people where you are going and have a plan for checking in at waypoints. Then if you run into trouble, you can be reported missing as soon as possible and rescuers will be able to narrow the search area.

The key to safe travel is to keep your vehicle properly maintained, plan ahead, and let others know your itinerary.

Headlamp Replacement

Like everything automotive, there have been great strides in headlight technology in recent years. We can all drive more safely at night because of it. Good headlights improve visibility down the road, enabling you to see farther. They also improve your peripheral vision, helping you to see the sides more clearly. The more you can see, the quicker you can react to road conditions. This is important because nearly half of traffic fatalities take place at night. And as the country's population ages, everything that helps older eyes is welcome.

Most new cars come with halogen headlamps. A decade ago, halogens were exotic and expensive. Now that they are standard equipment, the price has come way down. Many luxury cars are equipped with high intensity discharge, or HID, headlamps. You have probably seen them on the road, they're very bright and have a bluish tint.

From behind the wheel, there is no doubt that HID headlamps are the best thing going. However, many people complain about HID lights in on coming traffic or when they approach from behind. In fact, when the National Highway Traffic Safety Administration called for public comment, they received a record number of complaints about HIDs. This has lead to several studies - your tax dollars at work. Some expect future regulation of HID lamps.

All halogen headlamps dim over time. Experts recommend that they be changed out once a year. AutoNetTV suggests you replace your headlamps in the fall at the end of Daylight Savings Time. It's easy to remember - when you change your clock, change your headlamps. Remember to replace all headlamps at the same time - then all your lights will be equally bright. You will appreciate it during those long winter nights.

If you have an older car with old style headlamps - they make halogen replacement lamps for most cars. You'll be amazed at the difference this upgrade will make.

In addition to regular halogen lamps, you can upgrade to premium lamps that filter some of the yellow light, making a bright white light that's more like natural sunlight. This light's easier on the eyes and should improve reaction time.

Now, you may be able to step up to HID headlamps, depending on the kind of car you drive. These lamps should last the life of your car, but cost several hundred dollars a pair. If you want other drivers to think you're running HID lamps, you can even buy regular halogens that have a bluish tint. Does she or doesn't she? Only her North Carolina automotive service technician knows for sure.

Over time, plastic headlight covers can get cloudy or yellowed. In fact, AAA reports that nine out of ten headlights are dirty or yellowed, greatly reducing vision. In addition to helping you replace your headlamps, many service centers such as The Organic Mechanic in Asheville, North Carolina can restore your headlight covers. Headlights can be restored at a fraction of the cost of replacing.

PCV Valve Replacement

The energy from exploding fuel is what powers your engine. But some of the vapors from the explosions escape into the lower part of the engine, called the crankcase. The crankcase is where your engine oil hangs out. These gases are about 70% unburned fuel. If the gases were allowed to stay in the crankcase, they would quickly contaminate the oil and turn it to sludge. Sludge is one of the biggest enemies of your engine, clogging it up, eventually leading to expensive failures. Also, the pressure build up would cause seals and gaskets to blow out. Therefore, these gases need to be vented out.

Gasoline engines used to simply have a hose that let the poisonous fumes vent out into the air. In 1963, the federal government required gas engines to have a special one-way valve installed to help reduce dangerous emissions. Diesel engines are not required to have these valves.

The positive crankcase ventilation, or PCV, valve routes crankcase gases through a hose and back into the air intake system where they are re-burned in the engine. Fresh, clean air is brought into the crankcase through a breather tube. It's really a pretty simple system, but does an important job. The re-circulating air removes moisture and combustion waste from the crankcase, preventing sludge. This extends not only the life of your oil, but the engine as well. The PCV relieves pressure in the crankcase, preventing oil leaks.

Eventually, the PCV valve can get gummed up. Then it can not move enough air through the engine to keep it working efficiently. If the PCV valve is sticking enough, you could have oil leaks, excess oil consumption and a fouled intake system. If you experience hesitation or surging or an oil leak, it may be a sign of PCV value problems. Your owners' manual may give a recommendation for when the PCV valve should be replaced - usually between 20,000 mi/32,000 km and 50,000 mi/80,000 km. Unfortunately, some manufacturers don't list a recommendation in the manual, so it can be easy to overlook.

Many PCV system problems can be diagnosed with a visual inspection. Fortunately, PCV valve replacement is both quick and inexpensive. Proper oil changes will greatly extend the life of the PCV valve. Skipping a few recommended oil changes can allow varnish and gum to build up in the valve, reducing its efficiency. So now when your Asheville service technician tells you its time to replace your PCV valve, you will know what he's talking about. If you have had your car for a while and this is the first you've ever heard of a PCV value, ask your tech to check yours out or call The Organic Mechanic at 828-255-2628.

Search

Archive

Categories