Repairs Preventive Maintenance

Let me start by saying that your wheel bearings keep the wheels on your vehicle. Did that get your attention? In this article we’ll discuss more about wheel bearings and how you can keep them doing their very important job while you drive around Henrico Virginia.

Come see us at: 4705 W Broad St Richmond, Virginia 23230

Wheel bearings are pretty simple parts. They’re made of high quality steel and are engineered to last 100,000 miles or more if properly cared for. The bearings do two very important jobs: First they allow the wheel to freely rotate with as little friction as possible. Second, they support the weight of the vehicle. For example, if your car weighs 3,600 pounds, each wheel has to support approximately 900 pounds. That’s a lot of heavy lifting over many, many thousands of miles.

Even though wheel bearings are relatively simple, they need to be in near perfect condition to do their job. The bearings are packed with heavy grease to lubricate and protect them. A seal keeps the grease in and water and dirt out. It’s when the seal starts to leak that problems begin. The grease can become contaminated; causing the wheel bearings to overheat and ultimately fail.

The first sign that your wheel bearings are in trouble is an unusual noise coming from a wheel. It could be a chirping, growling, rumbling or a cyclic sound. The noise could get louder or even disappear at certain speeds. Your technician at Repairs Preventive Maintenance can inspect for bearing wear by lifting the vehicle and checking for play in the wheel.

Now some wheel bearing assemblies are factory sealed. That means that they cannot be serviced – they can only be replaced. Those that aren’t sealed can be serviced on schedule. The bearings are removed, cleaned and inspected. If the bearings are still good, they’re re-installed – if not, they’re replaced. They are then packed in grease and a new seal is installed.

If your vehicle has a factory sealed wheel bearing assembly, the entire assembly needs to be replaced when trouble arises. Unfortunately, the parts are pretty pricy – but they usually last about 150,000 miles as long as the seals hold up.

Now, even a good seal cannot keep out water that’s exerting pressure on the seal. So if you’ve driven through hub deep water your bearings should be cleaned and repacked if they’re serviceable. If you have factory sealed bearings, you just need to watch for signs of premature failure.

If your wheel bearings can be serviced, your owner’s manual will recommend an interval, usually around 30,000 miles.

Now, if you have any sort of trailer, don’t forget its wheel bearings. They probably need to be serviced even more frequently. This is especially true for boat trailers that are used to launch the boat by backing it into the water. These should be serviced every year, usually at the end of the season so that the bearings don’t have the opportunity to sit and rust all winter.

So what happens if wheel bearings fail? Well, the wheel can literally fall off the vehicle. I don’t need to tell you how bad that could be. So check with your service advisor at Repairs Preventive Maintenance and see if your vehicle’s wheel bearings can be serviced and when it’s recommended. Listen for warning signs. If you’ve been fording streams or puddle surfing after rainstorms, be especially vigilant.

Come by Repairs Preventive Maintenance for a wheel bearing inspection, or for tune-up. Call for an appointment at 804-358-9576

We all know that under inflated tires wear out more quickly. Under-inflation is also a major cause of tire failure. More flats, blow outs, skids and longer stopping distances are all results of under-inflated tires.

It’s hard to tell when a radial tire is under-inflated. If your manufacturer recommends 35 pounds of pressure, your tire is considered significantly under inflated at 26 pounds. The tire may not look low until it gets below 20 pounds.

Uncle Sam to the rescue! A new federal law requires manufacturers to include a Tire Pressure Monitoring System – or TPMS system – in all vehicles by the 2008 model year.

Some 2006 and 2007 models already have TPMS. The system is a dashboard mounted warning light that goes off if one or more of the tires falls 25 % below the manufacturer’s pressure recommendations.

The law covers all passenger cars, SUVs, mini vans and pick up trucks. The system must also indicate if it has a malfunction. This technology has been used by race cars for years. They are able to head off problems from under inflation by closely monitoring tire pressure on the track. It’s up to your car’s manufacturer to determine which of many TPMS systems available they’ll use to comply with the law.

Obviously, all of this doesn’t come free. Government studies have estimated the net costs. Of course, the TPMS system itself will cost something. Maintaining the system will have a cost, replacement of worn or broken parts and tire repair cost increases. The net cost is estimated to be between $27 and $100.

The costs are partially offset by savings in fuel and tread wear. There is also a saving in property damage and travel delay. Also, the government predicts fewer fatal accidents. They estimate there will be between $3,000,000 to $9,000,000 for every life saved.

Your safety has always been a concern of your service center. They want you on the road and accident free. They’ve traditionally provided things like tire rotations, snow tire mounting and flat fixes at a very low cost. They’ve been able to quickly and cheaply provide the service, and they pass the low cost on to you as an expression of their good will. That’s why they’re concerned about how you’ll perceive the changes that this new law will force.

Every time a tire is changed: taken off to fix a flat, a new tire installed, or a snow tire mounted, the service technician is now going to have to deal with the TPMS system. Sensors will need to be removed and reinstalled. The sensors will have to be re-activated after the change. And, unfortunately, the very act of changing the tire will damage some sensor parts from time to time – it’s inevitable and can’t be avoided.

Even a simple tire rotation will require that the monitor be reprogrammed to the new location of each tire. When a car battery is disconnected, the TPMS system will need to be reprogrammed. TPMS sensor batteries will need to be changed and failed parts replaced.

And the service centers themselves will need to purchase new scanning equipment to work with the TPMS sensors and to update expensive tire change equipment to better service wheels equipped with the new monitoring systems.

Service technicians will have to be trained on many systems and new tire-changing techniques. All of this adds up to significantly increased cost to the service center to perform what was once a very inexpensive service for you. So when you start so see the cost of tire changes, flat repairs and rotations going up, please keep in mind that it’s because of government mandated safety equipment. Your service center just wants to keep you safely on the road – and it’s committed to do so at a fair price. The effects of the new law will take some time to sort out, but it will help you avoid the most common vehicle failure, and possibly a catastrophic accident.

One of the most popular vehicle modifications in Virginia is custom wheels and tires. Custom wheels help you stand out from the crowd without spending a lot of money, and custom tires can help you fine tune your performance. Not that long ago, new cars came with just one or two tire and wheel options. Now manufacturers are offering more choices and over a third of new vehicle buyers choose custom wheels. That seems to have fueled public demand for custom wheels in all vehicle categories. The available styles, colors and finishes are endless. You’re sure to get the look you want – from sleek and stylish to tough and aggressive.

While custom wheels are largely a matter of taste, custom tires are a matter of function. That is not to say that there are not a lot of cool looking tires out there, it’s just that tires are vital to your safety, so there are some important practical considerations. Let’s look at it in terms of extremes. Think about the environment on a dry race track. High heat, high speed, high cornering forces, hard braking. Then think about a snowy, icy winter that is very cold and slippery. The rubber compound that could withstand the high temperatures and cornering forces on the race track would be very stiff and inflexible in winter conditions. And the rubber compound that provides cold weather flexibility and good bite into ice and snow would rapidly wear out on the race track and wouldn’t be stable at high speeds. Of course the tread design would be greatly different for maintaining traction on a dry race track than it would be for cutting through deep snow.

No one expects any one tire to handle these extremes. So, what we need to do is think about how we drive in Virginia and talk to a tire professional about options. There is a tire out there that will meet your driving needs. When you boil it down to the basics, a tire provides traction. The traction is for accelerating, cornering, and for stopping. Once you can identify the conditions you expect to drive in, you can find the tire that will deliver the traction you need.

Tire design and formulation has become very sophisticated. There are fewer compromises in wear, comfort, and performance. You can definitely find a tire that will deliver satisfaction over a range of driving conditions. Now if you live where a tire meeting the severe snow standard is advised, you’ll want to have a set of winter tires during those snowy, icy months.

Let’s go over tire and wheel size. Installing wheels and tires that are the same size as standard is easy. However, many people want to upsize these days and that can get a bit tricky. With the help of your Richmond tire professional, you will be able to pick the right tire and wheel combination for the way you drive. For example, if you drive in Virginia off-road areas a lot, a low profile tire might not work because there is just not enough cushion for the bumps and rocks.

You’ll want some help to make sure your new tires and wheels fit without rubbing. Your Richmond tire pro can also help you know if your engine management computer needs to be reprogrammed so that your speedometer is properly calibrated. A lot of people are tempted to order tires and wheels online but do not realize that some safety systems may be affected. For example, your rolling diameter needs to be within 3% of factory specifications in order for your anti-lock brakes to work properly. Traction and stability control systems can also be adversely affected.

It pays to get professional help when deciding on a wheel size. There has never been a better time to get custom wheels for the look you want. And your tire options are phenomenal. Whether you want a single purpose winter or summer performance tire – or something that can handle a wider range of conditions, you have a tire option for every price range.

What type of technology do you use? Do you prefer an 8-track tape or an iPod? When it comes to winter tires, much of the public’s perception dates back to when 8-track was the best way to listen to the Bee Gees.

Twenty years ago, winter tires differed from highway tires only in their tread design. We called them snow tires back then and they had big, knobby lugs that were designed to give good traction in deep snow. They had the same rubber compound as regular tires and they weren’t very good on ice, packed snow or wet roads. They were not even very good on dry roads. They really helped in deep or loose snow, but they did a poor job the rest of the time. They were loud and rode hard. You couldn’t wait to get them off in the spring.

Then all-season tires started to come along. All-season tires are really a compromise between summer and winter performance. They have acceptable hot weather ride and tread life, and you can get through mild winter road conditions OK. But there are some really good reasons to consider winter tires.

Modern winter tires do a terrific job in a wide range of winter conditions. First of all, below 45 degrees Fahrenheit, regular tires become hard and inflexible. That means they don’t provide the road grip you need. Even if you don’t live somewhere with a lot of snow, but it still gets below 45 degrees in the winter, you will be safer with winter tires.

In addition, they are specifically designed to more effectively move snow and water. That’s the key to traction on ice, packed snow and wet roads. They use a micro-pore compound that allows the tire to bite into ice and snow. They also use wider grooves that run around the circumference of the tread to expel snow from the tire better. The lugs and grooves on winter tires have a special shape that throws the packed snow out of the tread as the tire turns. The tread is then open when it comes back in contact with the road and can provide good traction.

Winter tires also have a lot of sipes. Sipes are thin slits in the tread. The edge of the sipes grab ice and packed snow to provide tons of traction and to expel water and slush out of the tread. winter tires have a rounder casing to cut into the snow’s surface. The treads on regular summer tires can actually get packed with snow instead and become very slick. winter tires offer 25% to 50% more traction than all-season tires. And when it comes to stopping power, all-season tires take 42% longer to stop than winter tires. Sometimes that’s the difference between getting home safely and spending the night in a snow bank.

Now back when the 8-track was king, you just put snow tires on the drive wheels. That worked out OK because the rubber compound was essentially the same. Now, winter tires provide so much more traction than all-season or summer tires, that there’s a huge difference between the traction at the front and rear ends of the car if you only put winter tires on the drive wheels.

For example: if you take a corner on an icy road and the rear end starts to slide out, essentially the rear is trying to pass the front because it’s going faster. If you have high traction winter tires only on the front, they are going to be much more effective at transferring cornering grip and stopping power to the front wheels. This will actually cause the rear end to whip out even more.

That’s why tire manufactures instruct their dealers that they must install winter tires on the rear wheels as well whenever they put winter tires on the front end of any vehicle. It’s a major safety concern. It’s strongly recommended that winter tires be installed on all four wheels on rear wheel drive vehicles as well. The front tires do most of the steering and braking work – it only makes sense that you provide the front end with the best traction you can.

People often assume that if they have four-wheel drive or all-wheel drive they don’t need winter tires on all four wheels. Would you intentionally disconnect the four-wheel drive in poor road conditions? Of course you wouldn’t, but that’s essentially what you do if you only put winter tires on one end. It only makes sense to have the same level of traction and control at all four corners.

The province of Quebec in Canada has issued a law requiring all passenger vehicles, taxis and rental cars with Quebec license plates to install a full set of four winter tires between November 15th and April 1. It’s that important.

Many modern cars have traction control and anti-lock brakes so people may think that they don’t need winter tires. But you need traction to accelerate, steer and stop. The tires provide the traction so that the traction control and anti-lock brakes have something to work with.

Look for tires with the symbol of a mountain with a snowflake in it. This means the tire complies with the severe snow standard. All-season tires will have an M&S, for mud and snow, on the sidewall.

So when the temperatures drop below 45 degrees, be sure you have a set of four winter tires for maximum performance in snow, packed snow, ice, wet and dry roads. Your tire professional can help you find the right winter tire for your vehicle and driving needs.