AUTONET TV

Greeted by a Screech (Loud Noise when Starting Vehicle)

No one likes to be greeted in the morning by having someone screech at you.  The same goes for a loud, high-pitched noise your vehicle greets you with every time you start the engine.  If you're wondering if that's normal, no, it isn't.  And it is worth getting checked out.  The good news is that it might be nothing serious.  Then again, it may be.

The first things to suspect any time you hear a high-pitched sound coming from the engine are belts.  They have tension on them and they're trying to turn lots of different pulleys, pumps and other equipment the engine needs to work properly.  The noise could come from the belts starting to wear out and dry out. If one of those belts breaks at an inopportune time, not only can it strand you somewhere, the damage to the engine could be very expensive to fix.

Other things that will cause a high-pitched sound are the pulleys and tensioners.  The tensioners keep the right amount of pressure on the belts and some pulleys contain rubber that dampens engine vibrations.  The rubber in the pulleys can crack or deform with age, which prevents them from working correctly and may cause your belts to wear out.

A technician will check to see if the belts are worn or cracked.  He or she will also check the tension on the belts, the condition of the pulleys and whether all  components are aligned the way they should be.

Sometimes, the noise is nothing major to worry about, but it's still worthwhile to rule out any problems that have cropped up now or may appear in the future.  You'll have a properly running vehicle that sounds like its engineers intended… quiet and smooth.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

Your Vehicle Is NOT Maintenance Free, Memphis Car Owners

A generation ago, Memphis drivers seemed to be more inclined to keep their vehicle's preventive maintenance on schedule. One reason for this may be that vehicles back then were a lot less reliable than they are today. Taking your vehicle in to your Memphis shop every year or two for repairs seemed to be a good reminder to keep the oil changed.

For example, almost everyone in Memphis used to take their vehicles in for regular tune-ups. Vehicles had mechanical ignition systems, which meant ignition points, spark plugs and coils had to be replaced and the timing adjusted every few years. As long as the vehicle was in for a tune-up at Madison Automotive, the vehicle was inspected and you took care of any needed repairs at the same time.

Today's engines have electronic ignition systems and engine control computers. Spark plugs can last for up to 100,000 miles/160,000 km. Vehicle reliability has vastly improved in the last few decades, and surveys report fewer problems with new vehicles than ever before. That also means that our vehicles don't experience a huge performance drop when they're ready for some care. But it doesn't mean that they don't need it.

Modern Memphis drivers need to rely on calendars and mileage intervals to know when to schedule maintenance. Owner's manuals contain recommendations on when different types of maintenance should be performed. Also, Madison Automotive in Memphis can provide advice about auto maintenance schedules. At Madison Automotive in Memphis, we know that benefits of staying on top of preventive maintenance are substantial. First, you'll get better engine performance and fuel economy. Those two things alone return the cost of preventive maintenance: in fuel savings and safety. Also, routine maintenance has been proven to prevent major car repairs later on. Again, the cost savings can be significant. As the old saying goes, “Spend a penny, save a dime.”

Modern vehicle engines may be more durable and reliable than their predecessors, but they're more sophisticated and complex as well. For this reason, preventive maintenance today is even more critical than the old tune-up. Modern engine systems have a lot of parts that have to stay lubricated. These parts can be made of aluminum, plastic or steel. Special additives in lubricants are required to keep each of these materials from breaking down or corroding. Over time, these additives are depleted, even if the vehicle isn't driven. This makes fluid changes a critical part of scheduled maintenance if you want to keep your vehicle on the road.

As an example, coolant fluid in your engine is a sophisticated mix that not only keeps your vehicle engine cool but also protects and maintains its components. However, this fluid gradually gets contaminated and anti-corrosion additives are depleted. It can become corrosive and damage the vehicle's engine parts it was designed to protect. It can eat holes in your radiator and other engine parts. Changing the coolant could have prevented this damage, and it's a whole lot easier and cheaper than replacing a radiator.

Timely oil changes are more critical for Memphis drivers than they used to be. Skipping just one oil change can start the build-up of oil sludge in your engine. Sludge can clog small engine passages, which cuts off the supply of lubricant to engine parts. Just this small bit of sludge can reduce the life expectancy of your engine. If the build-up continues, it could lead to engine failure within two or three years.

One word of warning to anyone in Memphis who purchases used vehicles: take care when buying a leased vehicle. Memphis folks who lease vehicles only intend to drive them for two or three years, generally the years when the vehicle is least likely to experience any problems. One of the reasons people lease vehicles is that they don't want to be bothered with maintenance or vehicle care. Before buying a pre-leased vehicle, be sure to inspect it for signs of damage that result from lack of proper care.

We can all be grateful for the improved reliability of our modern vehicles. With proper maintenance and care, we can expect them to last longer, perform better, get better fuel economy and require fewer repairs than ever before. We just have to be more conscientious about scheduling time for their care.

Give us a call or send us an email for more helpful tips.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

Regular Schedule or Severe Service Schedule at Madison Automotive?

Today's Madison Automotive article focuses on severe service maintenance. Many Memphis drivers are not aware of them and yet there are also very vocal advocates in TN who think that severe service schedules apply to everyone. Somewhere between a complete lack of awareness and the dire blanket statements lies a reasonable approach to severe service maintenance at Madison Automotive.

To back up a little, vehicle owner's manuals have schedules for preventive maintenance: things like oil changes, transmission service and so on. They say you should change your oil after a certain distanced traveled or after so many months. Memphis drivers understand this very well. What they may not know is that there are actually two service schedules: the regular schedule and the severe service schedule. The mileage and time intervals are lower on the severe service schedule.

Now when you hear 'severe service,' you may think it doesn't apply to you because you don't feel your driving conditions are severe or extreme – it's just normal everyday driving in the Memphis area. So let's list some of the conditions that classify as severe so that you can make the judgment on your own driving.

Before we start the list, here's a point of contrast that definitely is not severe driving. Driving down your nearest TN interstate at the highway speed limit on a 75 degree F/24 degree C day loaded only with your passengers. This is an easy trip for your vehicle: your engine is loafing along at low RPMs, no heavy loads to pull and moderate Memphis temperatures. Now let's look at some severe service driving conditions.

Most trips around Memphis are less than four miles/six and a half kilometers. When your vehicle engine cools down, moisture condenses in the engine. This water in the oil doesn't get a chance to evaporate on short trips because the oil doesn't get hot enough. A lot of short trips in your vehicle means a lot of water build up. And water in the oil leads to the creation of sludge which can damage the engine. Changing the oil more frequently keeps sludge from building up. By contrast, highway driving warms the engine up and gets the water burned off.

Here's another example. Most trips around Memphis are less than 10 miles/16 km and outside temperatures are below freezing. This is the same reasoning, but in very cold TN weather it takes even longer for the oil to get hot enough to evaporate the water, hence 10  miles/16 km as opposed to 4 miles/6.4 km.

Next, you drive in very hot TN weather. The hotter it is outside, the more cooling the engine, transmission, brake fluid and so on becomes. The environment in which the fluids reside is more hostile, and the fluids simply break down faster. Therefore, the lower change interval.

Another: driving at low speed most of the time. Every vehicle engine has what's called its power band. This is a range of RPMs in which it's most efficient. Low speed driving doesn't keep the engine in its power band so it's working harder. This is one of the reasons that ratings are worse in downtown than on the highway.

Stop and go driving in Memphis is another severe service condition. You're always accelerating, which works the vehicle engine and transmission harder. Then you're stopping, which works the brake fluid harder, causing it to get very hot. Highway driving, on the other hand, requires far less horsepower to maintain its speed than getting a stationary vehicle from a stop light up to 25 mph/40 kph. A lot of this and you'll need to follow the severe service schedule.

Also on the list is operating your vehicle in dusty, polluted or muddy conditions. Obviously, your engine air filter and cabin air will get dirty faster and need to be changed more frequently as will your breather element. Some of this dust and dirt will make its way into your fluids. They will simple get dirty faster and won't protect the components as well as fresh fluids.

Finally, you're driving under severe conditions in Memphis when you tow a trailer, regularly carry heavy loads or carry a car-top carrier. This is pretty obvious. You'll spend more time in lower gears so the engine and transmission work much harder and create more heat. Brakes will be more stressed stopping the heavier loads.

Sounds like most of us in Memphis operate under severe driving conditions at least some of the time. How can Memphis drivers know which schedule to follow?

Think of it as a spectrum with "always driving under severe conditions" on one end and "never driving under severe conditions" on the other end. Some will be at one extreme or the other, but most of us will fall somewhere in between.

Carefully think about your driving conditions and decide if you should do your preventive maintenance closer to the severe service recommendation or the regular recommendation. Of course, your Madison Automotive service advisor can help you with your decision.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

A Stitch in Time at Madison Automotive

You probably have heard that expression, "A stitch in time saves nine." In other words, if you fix an issue at its early stages, it will prevent a much more difficult problem later. That's certainly the case with your vehicle, and here's a true story to demonstrate it.

A driver noticed his vehicle was due for an oil change, so he took it in to his service facility early in the morning so he could wait while the work was performed. The technician routinely checks the battery on vehicles just before extreme weather is approaching (cold or hot), so with winter coming up, he hooked up the load tester (it measures voltage while a load is put on the battery). It showed the battery wasn't holding a charge well.

The technician checked the manufacturing date on the battery, too (most batteries have a date stamped in code somewhere on them). The date showed it was five years old. While batteries can last more than five years, many technicians say you should expect to get anywhere from three to six years out of them, depending on what they go through.

So, this battery was getting a little long in the tooth, and it wasn't holding a charge particularly well. But how much current was it being sent by the vehicle's alternator? If it wasn't getting enough, that might be a factor. A test of the charging system showed the alternator was putting out the correct amount of power. The technician recommended replacing the battery, and the driver agreed.

That was the stitch in time. Had the technician not checked the battery, that driver likely would have been stranded the next time he tried to start his vehicle on a very cold day. What originally was supposed to be just an oil change led to a technician's sharp diagnosis and a little preventative maintenance for one fortunate driver. Sometimes timing is everything.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net