AUTONET TV

Ball Joint Replacement

Think about this the next time you’re driving.  Your front wheels can steer your vehicle and, at the same time, the wheels can move, even with all the irregularities in the road moving them up, down and in different directions. Pretty amazing engineering, wouldn’t you say?

What allows that are parts called ball joints.  Most vehicles have them only in the front, but there are some vehicles that have them in the rear as well.  When you consider all the bumps and turns your wheels are subjected to, it’s not hard to imagine the wear and tear these ball joints endure. After any vehicle has put on many months of road time, these ball joints will start to wear out. 

You may find your vehicle’s front wheels clunk when you are on the road, it may not hold the road as well when you go over a bump, or you may feel vibration in your steering wheel and your tires may start to wear unevenly.

When you start to notice any of these symptoms, it’s a good idea to bring it in to have one of our technicians look at what’s going on. If you keep driving with worn out ball joints, you can cause your tires to wear out more quickly.  And if you go even longer, you might find your suspension can collapse, meaning you won’t be able to keep your vehicle under control.  

Many vehicles have upper and lower ball joints, depending on what kind you are driving.  The upper ball joints usually don’t bear any weight while the lower ones do.

When our technician replaces your ball joints, they’ll take your wheels off, then remove the control arm(s).  After replacing the ball joints, they’ll inspect the rest of your suspension to make sure there aren’t any other components that need attention. In some cases, you’ll also need to have your wheels aligned after this service. 

So, when you hear those clunks or feel those vibrations, they may be signs your steering and control over your vehicle aren’t as good as they need to be for dependable, safe driving.  Heed the warning signs and keep your steering and suspension performing the way they’re designed to.  

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

Catching Trouble Early

Your vehicle depends on wheel bearings.  Sitting between the wheel’s hub and axle, they allow your wheels to spin smoothly, bear the vehicle’s weight and work in harmony to stay aligned with other parts.  

Wheel bearings can fail in several ways, and they may send the driver some pretty clear clues.  Sometimes they make strange noises, or you may feel vibrations instead of the usual smooth ride. The most common signs are grinding or humming noises, uneven tire wear and steering vibrations.

Wheel bearings can fail when they are contaminated with water, road salt or dirt that slips in through a broken seal that’s designed to keep those things out.  If lubrication gets too old or overheats, it can create friction and heat that will cause the bearing to fail.  If you’ve hit some hard potholes or curbs, that can also damage a wheel bearing.

Unfortunately, wheel bearings can’t be fixed; they have to be replaced.

Once a wheel bearing is worn, replacement is the only fix—bearings cannot be repaired. When you bring your vehicle in, a technician will give it a road test and listen for noises on turns.  If your bearing needs replacing, the technician will use the appropriate part for your vehicle and make sure the axle nut is torqued to factory specifications.

If you can avoid driving in deep water, keep your tires balanced and make sure your suspension and brakes are maintained, you might minimize the chances of damaging a wheel bearing.  

You probably don’t think about your wheel bearings very much, but they are important to good vehicle performance.  When they’re healthy, your wheels will rotate smoothly, handling will be stable and your braking will feel solid and predictable.

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

Suspension Service in Herndon at McLearen Shell

When they hear the word suspension, many drivers in Herndon may think back to those energetic days of grade school. Well, your vehicle's suspension is actually a good thing because it keeps your vehicle up off the road and helps provide a comfy ride around Herndon. Its job is to keep your wheels firmly planted over bumps and through curves. Your suspension system has many parts. If you look under your vehicle, it's basically everything that connects your wheels to the vehicle's frame. These are heavy duty parts that do a lot of work. They need to be inspected for damage and excessive wear at least once a year. A good time for this is when you get your annual alignment service at McLearen Shell.

Here are some warning signs of suspension problems:

• the car pulls to one side
• it wanders
• the steering is erratic
• you see uneven tire wear
• you experience a poor ride or handling
• you see oil leaking from shocks

Basically, you just don't feel in control when you're driving.

Some suspension parts just wear out with use. Shocks and struts eventually lose their ability to control your ride. Wheel bearings need to be repacked every couple of years. And some suspension pieces need to be lubricated when you get your oil changed. Your service advisor at McLearen Shell can perform an inspection and tell you what problems you may have.

If you're in an accident, your suspension can be damaged or knocked out of alignment. Even a minor accident, like hitting a curb around Herndon or even a large rock can mess things up for drivers. With a minor accident it's tempting for many to just get an alignment or wheel balance to correct the problem. But if there's damage, a simple alignment won't actually fix the problem, and you'll just have to align it again after the repairs are made. So if you have an accident, get your suspension system inspected right away. Suspension problems are a major safety issue because they can lead to unsafe handling.

One big cause of suspension damage for Herndon drivers is potholes – those nasty magnets that form in roads in freezing weather. They seem to draw our tires right into them. Here are some tips for avoiding damage from potholes: First, keep your tires at their full air pressure. That gives tires their maximum resiliency and will hopefully keep your wheels or other suspension parts from crunching on a big hole. Next, just pay attention. When you see a hole you can't miss, slow down before you hit it. Driving at a slower speed will limit the damage and may keep your drink from spilling. But avoid the temptation to brake directly over the pothole. That will cause the car's weight to shift forward and add to the potential damage.

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

In That Case… (Transfer Case Exchange)

Ever wonder how all-wheel-drive or 4-wheel-drive vehicles get the power from the engine to the front and rear wheels? The magic happens in what's called a transfer case.  In some all-wheel-drive vehicles, it's sometime called a power take-off unit, or PTU.

Inside the transfer case is a set of gears.  And to keep those gears meshing smoothly, they have to be lubricated and kept cool.  What does that is called transfer case fluid. Depending on your vehicle's type of transfer case, it is filled with either an automatic transmission fluid, a gear oil that's a bit thicker or transfer case fluid designed to be use for your transfer case.

As happens with all lubricating fluids, the transfer case fluid has things in it that break down the older they get.  They have corrosion inhibitors, detergents and anti-foaming agents that keep the lubricant from getting air bubbles in it. Transfer cases don't have filters in them to clean out impurities.

If you don't have your transfer case fluid exchanged for fresh, you risk damage to the case, and that can run into thousands of dollars.  So the wise driver makes sure the fluid is changed according to the manufacturer's recommendations.  For many vehicles, that is every 30,000 mi/50,000 km, but some require it more frequently.   Your vehicle service facility can advise you on what your vehicle's optimal interval is.

During the fluid exchange, any metal filings that may have come off are cleaned off of the drain and fill plugs that are usually magnetized to catch the stray metal pieces.

If you hear grinding noises coming from under your vehicle or if it is having trouble shifting gears or going in and out of 4-wheel-drive, those could be signs your transfer case needs service. In that case, have our technicians check it out.  The best plan of action?  Keep your transfer case fluid maintained and it should keep you heading down the road for years to come.

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