AUTONET TV

Fuel System Cleaning at McLearen Shell

Is your vehicle sometimes hard to start early in the morning? When you turn the key, does it hesitate or stutter? If so, the problem could be the result of a dirty fuel system. Your vehicle's fuel system starts with the air filter and ends in the top of your engine. Over time, different parts of the system get dirty, which robs you of performance and hurts your fuel economy.

Most Herndon vehicles have fuel injectors, rather than a carburetor. Fuel injection systems have fewer problems and require less adjustment. But they still need to be properly maintained. This is why your owner's manual has a schedule for cleaning your fuel injectors and other parts of your fuel system.

Some Herndon residents are interested in buying fuel system cleaners that they can pour into their gas tank. You can do that - and there are lots of great products available that can help maintain an already clean fuel system - but these products cannot do a major cleaning. For that, you need to see McLearen Shell. McLearen Shell has the professional tools and chemicals to really do a complete service.

McLearen Shell uses a process that gives your vehicle a deep, professional fuel system cleaning. You need to remove particles, gum and varnish from your fuel system and get those injectors running cleanly and efficiently. After a professional fuel system cleaning, you'll notice more power, better fuel economy and reduced exhaust emissions.

The cleaners also help prevent rust and corrosion in your fuel system and lubricate engine parts.

Fuel system cleaning is just one of those recommended service items that help keep your vehicle running strong. As with all maintenance, it can help avoid repairs that often result from not taking the right preventive steps. Herndon residents will notice the difference in how well their vehicle runs. Check with your friendly and knowledgeable pros at McLearen Shell to see when your vehicle is scheduled for a fuel system cleaning.

An ounce of prevention really is worth a pound of cure for Herndon vehicles.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com

Helping Herndon Drivers Get the Right Tires

Every Herndon vehicle owner has to purchase tires at some time or another, so it's a good idea to understand what the choices are. The best seasonal performance is achieved by purchasing tires to match the season you are driving in. Summer tires are designed for hot temperatures. The tread is engineered for good traction on dry or rainy VA roads. But the rubber compound in summer tires gets stiff when temperatures drop below 45°F (7°C), and snow and mud can pack into the tread, reducing the traction of the tire.

Winter tires are designed for good traction on snowy surfaces. The tread actually throws snow off of the tire as the wheel turns. The rubber compound in a winter tire is soft so that it will remain flexible at temperatures below 45°F (7°C). At higher temperatures, however, the softer rubber wears down rapidly.

All-season tires sacrifice some of the extreme performance of summer or winter tires, but they maintain adequate traction in either type of Herndon weather.

So your first consideration when buying a tire is where you live in VA, and where you usually drive. If you require maximum summer and winter performance you can go with dedicated summer and winter tires; you would just need to change out your tires each spring and fall.

For serious winter driving in VA, look for tires with a severe snow rating. These tires are labeled with a mountain-and-snowflake logo.

Your second consideration is the quality of tire to purchase. Summer, winter and all-season tires come in a variety of grades and styles at VA tire stores. Herndon drivers will want to purchase a tire that will give them good wear and that will handle their driving style and road conditions. Your McLearen Shell tire professional can give you auto advice as to which type of tire will best fit your needs.

Herndon vehicle owners who drive off-road around VA may want to look at a high-grade tire that is designed for off-road use. These tires are designed to handle the extra wear of off-roading while still giving good performance on Herndon streets and roads. There are a number of options to choose from so that you can find the right tire whether you are only an occasional off-road explorer or a serious rock climber.

New wheels can be purchased in Herndon as a statement of style or to add personality to your vehicle. There are almost unlimited options. If you change the size of the wheels on your vehicle, however, you will need to get some professional help to make your vehicle compatible with its new wheels. Talk to your McLearen Shell for more information about tires.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com

Transmission Care in Herndon, VA

Do you have any plans around Herndon, VA, for the weekend? Maybe you and some friends are taking the boat up to the lake. Maybe you'll be having a lot of fun water skiing and doing a little fishing.

You got the boat all ready. It's all gassed up. You packed lots of snacks and the cooler's stocked – ready to go.

How about your tow vehicle? It has plenty of gas and you've even vacuumed it out, but is your auto maintenance up to date?

Stop and think. You'll have some heavy traffic on your way out of town. Hilly terrain as you get to the lake. Some dirt roads – and you may have hot weather. And all the time you're going to be towing around a lot of extra weight.

That all adds up a lot of severe strain on your engine, brakes and transmission. Your transmission's going to be working overtime, spending more time in lower gears. The internal transmission temperature is going to be much higher than normal. What's a fun little blast to the lake for you is really severe duty for your transmission.

It's important that you have enough transmission fluid. If you're running low, the transmission will run too hot and won't have the protection it needs to cope with the added stress of towing.

And if it's time for a transmission service, you really should have it done at McLearen Shell before your trip. Transmission fluid breaks down and gets dirty over time. Whether you have an automatic or manual transmission, you need to have it serviced on schedule to make sure it runs efficiently.

Automatic transmissions contain a maze of passages that the fluid has to pass through to keep them shifting smoothly. If you neglect transmission service, the passages can get clogged up and you start to have problems. Neglect your transmission for too long and it can fail. Believe us – you don't want to pay for a major transmission repair.

You know, most of us in Herndon, VA, do a lot of our driving under severe conditions. Towing or hauling a big load is obvious, but there are lots of other things that constitute severe driving conditions. Things like short trips or driving in very hot or very cold weather. Also, dusty roads, city driving around Herndon, and basically any driving that's not at highway speeds or under ideal conditions is severe driving. We all need to think about whether or not we need to follow the severe service schedule.

So, consider going in for a full service oil change before you leave for the lake to make sure everything has been looked at. Ask for a trip inspection while you're at it. Your Herndon, VA, service technician at McLearen Shell can check your belts and hoses and let you know if your brakes are in good shape.

Don't forget the sunscreen. And to thank your McLearen Shell service technician, how about bringing him back a nice trout?

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com

Water Pump

Your cooling system is very important. It circulates coolant through the radiator and your engine to protect your vehicle from overheating. There are five main components to the cooling system:

• the radiator
• the radiator cap
• the hoses
• the thermostat
• the water pump

The water pump's like the heart of your cooling system, circulating the fluid throughout your vehicle. It's a small pump that's driven by the engine; usually by belt, but sometimes by a chain or gear.

The water pump only operates when the engine's running. Water pump failure is pretty routine. We see it often at McLearen Shell. Some start failing at around 40,000 miles/64,000 km, but most fail by 100,000 miles/160,000 km. Consult your owner's manual or friendly and knowledgeable service advisor at McLearen Shell to see what's recommended.

Since a water pump either works or it doesn't, you need to change it when it fails. Water pumps fail in one of two ways: the bearings fail or they begin to leak. It's possible to have a leak from a cracked water pump, but it usually leaks at the gasket where it attaches to the engine.

So how can Herndon drivers tell when the water pump is failing? If you can hear a low-pitched grinding sound coming from the water pump, it's got a problem. If you can see coolant in that area, you've got a leak.

Some water pumps are driven off the timing belt. They might be under a plastic cover so you can't see the water pump. Look for coolant on the driveway. If you see some, have McLearen Shell check it out.

Most timing belts need to be changed at 60,000 miles/97,000 km – some longer. It's a good idea to change your water pump at the same time if it's one of those that's driven off the timing belt. To start with, 90% of the work's already done with the timing belt change. And if you don't and develop a leak later, you'll have to change the belt again along with the water pump because the belt will have been contaminated by the leaking coolant.

McLearen Shell can replace a failed water pump with a brand spankin' new one or with a rebuilt pump. Rebuilt will save you some money, but ask your service advisor at McLearen Shell what he thinks. Don't feel too bad if your water pump gives out. They will all wear out eventually. We can get you back on the road and on with your life.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com

It's Brake Time (Brake Calipers)

Race car drivers have demonstrated the advantages of disc brakes, so most modern vehicles use them.  Sometimes just the front wheels have disc brakes, but many vehicles now have them all the way around. 

A major component of the disc brake is called a caliper.  It works by squeezing brake pads against the disc or rotor, kind of like a bicycle hand brake.  The brake pads themselves are what contact the rotor, causing friction to build and the wheel to slow down, but it's the calipers that apply the pressure to the pads.

Caliper design has evolved over the years, and there are two common types.  One is called a floating caliper.  It has one or two pistons on one side of the disc. When you push down the brake pedal, the piston or pistons in your caliper put pressure on that one side.  A mechanism connected on the other side of the disc applies pressure as well, squeezing your disc so the vehicle stops.  Floating calipers are less expensive since they have fewer parts.

The other type is called a fixed caliper.  They use pistons on both sides of the disc, sometimes several.  They are often used in more high-performance or heavy-duty vehicles.

Calipers can have rubber seals to keep out dirt, debris and moisture, but when that rubber wears out, sometimes the calipers can get contaminated.  They can stick or start leaking; they can even rust.  Then your caliper can get stuck applying that "squeeze" when you are not pressing on the brake pedal.  Or they can get stuck in the other position, not applying stopping power when you press the pedal.

When this happens, it's not unusual to feel your vehicle pull to one side when you brake.  You might notice a burning smell from the constant friction if the caliper is stuck on, plus you may feel the heat from the wheel after you park and get out of your vehicle.  Sometimes you'll hear a high-pitched sound or clunk if your calipers are binding up. 

That's your cue to have them checked out at your vehicle service center.  If your calipers aren't working correctly, it can be a safety hazard.  Sticking calipers can affect your ability to steer and stop; this is the kind of "brake time" you need so you can get them back on track and working properly.

McLearen Shell
3043 Centreville Road
Herndon, VA 20171
(703) 318-7744
http://www.mclearenshell.com