AUTONET TV

The Right Stuff (Choosing Replacement Parts)

Let's face it.  Vehicles are complicated machines, each having thousands of parts.  And since they're subjected to heat, cold, vibrations, bumps and much more, these parts wear out and need to be replaced. 

When your service advisor says you need a new part, you may have many options.  Let's say you need a new muffler.  One choice would be to get exactly the same part that was installed when the vehicle was manufactured.  The advantages are that it will perform the same way as the one it's replacing and will likely last about the same amount of time as the original.

Some mufflers are made by the same companies that supplied the automaker when your vehicle was new (they call that an OEM part—Original Equipment Manufacturer).  And often those are the same as the part you'd buy from a dealer. A reputable vehicle service facility will know which ones these are because they replace mufflers all the time and do their homework.

The good news is there are many different mufflers available from several manufacturers.  These are called aftermarket parts. Some of them may use different metals or a different construction technique. Some may sound a little sportier while some may make your engine perform better.  Your service advisor will discuss what your driving habits are and help choose the part that's best for you.

You may be able to get a part that's better than the one originally installed.  Here's an example.  A repair shop discovered one owner's vehicle had developed cracks and leaks in the hoses that attach to the heater core.  They were made of plastic, and heat and pressure had caused the originals to crack.  The service advisor recommended they replace it with an aftermarket part that was made of aluminum instead, one that was more durable than the original part.

Some aftermarket parts cost more, some cost about the same or less.  Depending on how and where you drive and what you want out of your vehicle, you can decide to buy more economical parts which might be the best fit for your needs.  Or you may decide to upgrade to a better, more expensive part.

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

Breathe New Life into Your Engine (MAF sensor replacement)

If you’ve noticed your vehicle is hard to start, stalling, or has lost power, the culprit may be a part with an odd name: the MAF sensor.  You may have never even heard of a MAF sensor, but it’s important that it be working correctly, or you may be experiencing some fairly significant engine issues.

All vehicles bring in air and direct it through an air filter before it goes into your engine, where it mixes with fuel to provide power to get you going. There’s a tube-like device with a sensor inside it that measures how much of that mass of air is passing through. That’s why it’s called a mass air flow sensor, or MAF sensor.  If the MAF sensor isn’t working right, the engine’s computer can’t figure out the right amount of fuel to mix with it, and your engine may hesitate or stall.  Sometimes this will cause your Check Engine Light to come on, and any time it does that, make sure you have your vehicle checked by a professional, so you’ll know what’s going on.

When you take your vehicle into your service facility, a technician will thoroughly check the system to see just where the problems are.  If your air filter is dirty, your MAF sensor may get dirty too, which might be causing the problems.  You may find your fuel economy isn’t what it used to be either.

There are other things that can cause the same symptoms, too, such as a leak in a vacuum hose. It’s also possible that the electrical connector between the MAF sensor and the engine has broken. 

The technician can use electronic diagnostic equipment to help pinpoint the exact problem or problems, replace worn parts, and test drive your vehicle to make sure it’s working correctly.

It’s also a good idea to make sure your air filter is changed regularly. A dirty air filter can contribute to a MAF sensor failure. One of the big benefits of having your vehicle regularly maintained at one facility, is they know your vehicle. So, they keep track of which of your vehicle’s parts should be periodically replaced before problems develop. 

If you keep clean air heading into your engine, it can help your engine work efficiently, and with the power it was engineered to deliver. Isn’t that a breath of fresh air?

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

Let Madison Automotive Help You Extend the Life of Your Car

If you haven't shopped in the Memphis area for a new vehicle recently, you're likely to experience some sticker shock. It seems everything is costing more these days. And when you consider the price of auto financing in Memphis, and insurance, the idea of hanging on to your old vehicle for a few more years gets even more attractive.

On the plus side, vehicles these days are engineered to last for 150,000 miles (250,000 km) or more. So why don't they? Usually it's because Memphis drivers don't stay on top of preventive maintenance. Good vehicle care at professional automotive service centers like Madison Automotive in Memphis is the key to getting the most mileage out of your vehicle.

Too often, Memphis vehicle owners are inclined to wait until their vehicles develop an obvious problem and take them in for repairs instead of maintenance. Repairs can be expensive, but allowing routine vehicle maintenance to slide also has the invisible cost in shorter life expectancy for a vehicle.

For example, the fluid in your coolant system becomes corrosive over time and should be replaced periodically. If not, it can damage the radiator and other engine parts. Talk to our pros at Madison Automotive. Over time, this damage can build up until these parts have to be replaced.

The same goes for the power steering system, brake fluid, air conditioning refrigerant, differential fluid and transmission fluid. All of these fluids need to be replaced on schedule or you risk causing serious damage to your vehicle and shortening its life span.

If oil is not replaced on schedule, your engine can build up oil sludge, which can also lead to serious engine damage. Insufficient oil can also eventually cause your engine to seize. Brake pads should be replaced before they are completely worn down. This prevents expensive damage to rotors and/or drums. Again, your Madison Automotive pros can advise you.

Belts and hoses should all be inspected regularly. If they are showing signs of wear, they need to be replaced. If belts break or hoses begin to leak, the results can be repair bills. Again, this can significantly reduce the life expectancy of your vehicle.

Most Memphis drivers recognize the wisdom of keeping up with preventive maintenance. But we also have a lot of other responsibilities on our plate. Vehicle care just doesn't get to the top of our list until it becomes an emergency. Unfortunately, that emergency usually means repair bills, which always seem to add up to more than the preventive maintenance at Madison Automotive would have cost us.

So take some good auto advice and develop a relationship with a certified service center located near your Memphis area neighborhood. At Madison Automotive, we value the relationships we have established with our clients. We keep track of our customers' vehicle needs and help them keep its maintenance on schedule. We know you have a lot of other things to keep track of.

As far as car care goes, the old adage “a stitch in time saves nine” holds true. At Madison Automotive, we rephrase it as “a dollar now saves $10 later.” Or $20. Or $100. Or more.

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

The Byte Stuff (Your Vehicle's Computers)

Nobody has to tell you that computers are a part of so many things in our lives.  Smartphones, kitchen appliances, vacuum cleaners, televisions.  You name it—it has a computer in it.  And your vehicle is no exception.

The earliest cars relied on the technology of their time, and there was no such thing as a computer.  But now, it's not unusual for a vehicle to have as many as 150 computers in it.

They perform a variety of functions. An important one is diagnosing your vehicle's problems.  There are various sensors throughout modern vehicles that measure thousands of data points.  When something is not working correctly, they send a signal to another computer that stores that information. The data can be read by someone who has a special computer that plugs into a port in your car.  It displays certain codes that help technicians track down the culprit. 

But it's not just the diagnostics that are computerized.  Everything from your vehicle's fuel injection to anti-lock brakes is.  Convenience features such as power windows, rain-sensing windshield wipers, a wi-fi-hot spot, streaming video and navigation are all sophisticated computers.  Then there are the safety features; air bags, traction control, automatic emergency braking and a host of others are all dependent on computers.

It is important that those computers work correctly because they interface with many of the other computers on board.  To properly diagnose problems with those computers requires training and special equipment. Your service facility has invested considerable resources into both, and they are equipped to properly evaluate and repair and/or replace malfunctioning components. 

Some lament the days when backyard mechanics could pull out their tools and do their own repairs.  Those days are fast disappearing with the computerization of vehicles.  But look at the bright side.  Your vehicle does so much more, has so many more features and travels far more safely than those past generations drove.  And they're bound to get better and more sophisticated down the road.

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

A Bright Spark (Ignition Coil Replacement)

Ever wonder how your vehicle’s engine is able to take the 12-volts from its battery and ramp that up to as high as the tens of thousands of volts it takes to fire its spark plugs? The secret is something called an ignition coil.  Most newer vehicles have an ignition coil at each cylinder, but older ones have a coil that serves all of the spark plugs. 

There are telltale signs that you have an ignition coil problem.  As you might expect, one symptom is it’s hard to start your engine or it won’t start at all.  If your engine is misfiring or not running smoothly or you see the Check Engine light come on, those all could point to an ignition coil failure.

Several things can contribute to ignition coil trouble in addition to normal wear and tear. Moisture and dirt may have gotten inside the coil, plus the heat and vibration of your engine over time can contribute to them going bad.  Bad spark plugs or plug wires can also be a cause.  

While ignition coils can last 100,000 miles/160,000 km, depending on how you drive and in what conditions.  If you start noticing some of the signs and symptoms just described, it’s a good idea to schedule a visit to see us so a technician can diagnose what’s wrong. Driving too long with an engine misfiring can damage your catalytic converter, and that can be expensive to replace.

A technician will thoroughly check your ignition system and determine where the failure is.  If it’s only one coil that’s bad, it may be the only thing that will need replacing.  If your vehicle has a distributor, it may also need to be replaced.  Properly-working ignition coils will help your vehicle operate at its best and help prevent future engine damage.

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