AUTONET TV

Give it the Boot (Ball Joint Boot Replacement)

Your vehicle may be wearing boots right now and you might not even know it.  They're called ball joint boots.  They're actually protective, flexible things that protect parts of your suspension (called ball joints) from all the hazards the road can fling at them.  If one of those ball joint boots fails and you don't get it replaced, the ball joints themselves could wind up failing, a repair that can be even more expensive. 

Ball joint boots not only keep things like rocks, salt, water and dirt out of your ball joints, they also help the ball joints keep their lubrication inside and working properly.  To do that, the boots have to be made of a flexible material, sometimes rubber, sometimes a synthetic.  They do take a beating, exposed to temperature extremes and debris, and eventually they can tear or crack just because of their age.  Unless someone is keeping an eye on your ball joint boots, you may never know there's a problem.  That's why when you regularly take your vehicle in to a repair facility for other things like oil changes and routine maintenance, a technician will inspect the ball joint boots to make sure they're still in top shape.

If they're not, your service advisor will let you know. Take care of that soon and you may avoid having to replace the ball joints themselves or other suspension parts which may be much more expensive.  Often it's best to replace boots on both sides of the vehicle since they frequently wear at about the same rate. 

If you want to make a fashion statement, some ball joint boots come in various colors other than run-of-the-mill black.  And some aftermarket boots are made of a more durable material than the original equipment that came on your vehicle.  Some drivers get a real "kick" out of flashy ball joint boots!

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

McLearen Shell Often Asked About Premium vs. Regular Gas

Herndon residents often ask the question: "Will using premium gas make my car run better?" The answer is simple. But first, let's talk about what exactly premium gasoline is.

Different grades of gasoline have different octane ratings. Regular gasoline has the lowest octane rating and premium the highest. Most gas stations around Herndon, VA, also carry a mid-grade that falls in between the two. The octane range for the different grades of gas varies by region due to altitude differences.

Engines require different octane ratings because of design differences. For example, turbocharged engines usually require premium gas.

There's a sticker on your gas tank filler lid that tells you the minimum octane rating your vehicle manufacturer recommends.

For help identifying the type of gasoline your engine needs, come by McLearen Shell in Herndon.

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

Timing Belt Replacement in Herndon

Today we want to talk to Herndon drivers about timing belts. They're something that many drivers don't know much about and yet your vehicle won't run if it's broken – and it could cause many thousands of dollars damage if it does break. A broken timing belt is usually a tale of woe. Even though timing belt replacement is scheduled in the owner's manual, it's not the kind of thing that most Herndon area auto owners remember because it's not well understood.

Let's review what a timing belt does. As most know, the engine's power is generated in the cylinders. A piston rides up and down in the cylinder. During the first down stroke, an intake valve at the top of the cylinder opens and air and fuel is drawn into the cylinder. Then the piston returns to the top, compressing the fuel and air mix. At the top, the spark plug fires, igniting the fuel, pushing the piston down in the power stroke. As the piston once again returns up in the final stroke of the cycle, an exhaust valve opens at the top of the cylinder and the exhaust is pushed out. The timing belt is what coordinates the opening and closing of the intake and exhaust valves. It's called a timing belt because the valves have to open and close at just the right time.

Now, not all vehicles have timing belts. Some have timing chains. Like the name implies, they use a chain rather than a belt to perform the function. It used to be that most engines used timing chains, which are extremely durable. The leading vehicle manufactures started using belts rather than chains to save money in the manufacturing process. So now Herndon drivers and their advisors at McLearen Shell are left with a component that can break. They sort of shifted the problem to us. There are two broad categories of engine design: interference and non-interference. If the timing belt on a non-interference engine breaks, the engine simply stops running. That could be very dangerous for drivers depending on where they are at the time, but it causes no internal engine damage.

Interference vehicle engines, on the other hand, will get real messed up when the timing belt breaks, because the valves will actually fall down into the path of the pistons. Things get chewed up when that happens and it'll cost a chunk of change to repair the vehicle engine.

So, what are the warning signs? Unfortunately, there really aren't any. There aren't tell-tale sounds. In some vehicles, a technician from McLearen Shell may be able to see part of the belt for a visual inspection, but many have a cover that's in the way. The reality is that if the belt slips even one notch, it might as well be broken for all the damage it'll cause. There's no middle ground.

So how can we avoid these problems? Simply replace the timing belt when your owner's manual calls for it. It can be 60,000 miles/97,000 km; it might be 90,000 or 100,000 miles/145,000 or 160,000 km. The point is, if you have 60,000 or more miles (97,000 or more km), ask your McLearen Shell service advisor right away if your vehicle requires a timing belt replacement.

Contact McLearen Shell to learn more about your car's timing belt
You can find us at:

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

Sometimes Herndon drivers can go quite a while without a failure, but we've seen them happen within a couple of oil changes of being due. It's not worth the risk.

What does it cost to replace a timing belt in Herndon? Well, that really depends on what kind of car you have. I can tell you that it's usually not very easy to get to the timing belt – you often have to remove some accessories to get at it. It isn't a cheap procedure, but it's a fraction of what it could cost to repair the damage caused by a failure.

At McLearen Shell in Herndon, we're all about trying to prevent repairs, keeping you and your passengers safe and increasing your driving enjoyment. 

Shake It up in Herndon!: Why Wheel Balancing

Our vehicles are not massage chairs. While we may enjoy a good vibration in an overstuffed recliner, we generally want as smooth a ride as possible in our vehicles. One way to achieve this is to keep a vehicle's wheels in balance.

When a tire is mounted onto a wheel, it is usually out of balance. This means that as the wheel spins, there is a slight wobble to the path of the tire. For best handling performance and safety on the road, Herndon drivers want to minimize this wobble as much as possible. So we balance our tires. To balance a tire, your technician at McLearen Shell spins it on a machine or drum to determine where it is off-balance. He then attaches weights that counter-balance the uneven weight. Most people in Herndon are surprised at how much balancing improves the smoothness of their ride.

High-quality tires generally hold their balance well. But over time, wear and tear take their toll and tires can become unbalanced. Herndon drivers can tell when a front tire is unbalanced if they feel a vibration in the steering wheel. If a back tire is unbalanced, you'll feel a vibration in your seat. You may not notice these vibrations until they get fairly serious — or until someone else drives your vehicle — because they usually develop slowly. If a vibration starts abruptly, it usually means you've lost a balancing weight.

The average tire rotates at about 850 revolutions per minute at 60 mph/97 kmh. When a tire is out of balance, it actually hops down the road, rather than rolling. So at 60 mph/97 kph, it is slamming into the pavement 14 times a second. That's what creates the vibration. When tires are out of balance, they wear out more quickly. The lack of balance also causes extra wear on shocks, struts, steering components and suspension parts.

Getting a balance job at McLearen Shell in Herndon can prevent repair bills and even an accident. It will improve the safety of your vehicle as well as its handling performance. When you change your rims or get a flat repaired at McLearen Shell, you'll need to get your tires balanced as well. When you rotate your tires, you may want to have them balanced, too.

Some Herndon vehicle owners, however, only balance their wheels every other rotation. You can check your owner's manual to see what is recommended for your vehicle. Balancing your tires is part of preventive maintenance. It keeps your vehicle in good repair and prevents damage to many of its components. So practice good vehicle care and make it a point to keep your tires balanced. It's quality auto advice from McLearen Shell. Massage chairs may vibrate away our worries, but unbalanced tires will just rattle Herndon drivers' nerves.

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