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Archive for August 2020

On Board Diagnostics for Your Engine

Posted August 30, 2020 9:50 AM

Starting in 1996, Madison Automotive service technicians have been able to use a standardized diagnostic system to help determine what is wrong with a vehicle. This diagnostic system works in tandem with the Engine Control Modules for each vehicle's engine. The Engine Control Module is a computer that monitors and controls many engine functions.

Sensors throughout a vehicle send readings to the Engine Control Module. These readings help the computer make adjustments in various vehicle systems to allow for constantly changing driving conditions and even to compensate for minor problems. However, if the computer encounters a situation it can't adjust for, it turns on the Check Engine light. (The Check Engine light is called the “service engine soon” light on some vehicles.)

If the Check Engine light is burning steadily, it indicates a problem that needs to be taken care of soon. If it is flashing, however, the vehicle needs immediate attention at Madison Automotive. When the Check Engine light is flashing, the vehicle should not be driven at high speeds, haul heavy loads or tow a trailer. Memphis drivers need to understand that doing so can cause major damage.

When a vehicle is brought to Madison Automotive in Memphis because the Check Engine light is on, a technician will scan the Engine Control Module to learn why it turned the light on. The answer comes as a “trouble code.” The technician has access to software that allows him to enter the code and find out what it means. The software will also let your Madison Automotive technician know what might be causing the problem and how to diagnose it.

Notice that the trouble code does not tell your technician at Madison Automotive exactly what is wrong with the vehicle. It can only let him know where to start looking to find the problem.

Scanning a trouble code and determining what it means is fairly simple for the pros at Madison Automotive. But the ensuing process of actually diagnosing a vehicle's trouble can take a skilled technician some time. Sometimes this can add up to a significant repair bill. Some vehicle owners mistakenly believe  that the “trouble code” is all they need and think they can then fix their vehicles themselves. Some have tried to save money by purchasing an inexpensive scanner, or they take their vehicles to an auto parts store that offers the scan for little or no cost.

These options are often not the money-savers they seem for Memphis vehicle owners. They can end up costing the vehicle owner extra in unnecessary repairs and engine damage.

For example, the trouble code P0133 reads “Bank 1 sensor 1 circuit slow response.” Translated, that means the front oxygen sensor shows a slow response time in changing the mix of air to fuel. The seemingly obvious conclusion is that the sensor needs to be replaced. The vehicle owner purchases a sensor, installs it and happily goes on his way.

However, read the trouble again: a slow response time in changing the mix of air to fuel. Nowhere does this indicate that the sensor is bad. There are a lot of parts involved in changing the air-fuel mix, any of which could be causing a slow reaction time. Those include a bad or contaminated airflow sensor, an exhaust leak, a problem in the electrical system or a leak in the intake manifold. The sensor is merely relaying that the response time is slow; it doesn't indicate where the trouble is.

So the vehicle ends up with an oxygen sensor it did not need, and the delay in repairing the actual problem may have led to further damage to the engine. Both are added costs for the vehicle owner.

Cheap scanners also don't have the ability to read the history stored in an engine's computer. This operating history contains clues that can help in diagnosing engine trouble since it can indicate a developing problem. Madison Automotive invests a lot of money in high-end diagnostic equipment so that we have access not just to service codes but also to the operating history of the engine.

On-board diagnostics, then, are a tool to help diagnose what is wrong with a vehicle. They cannot specify what part needs to be fixed or replaced, and they cannot replace a well-trained and well-equipped service technician.

Unless you are a trained mechanic, it's good auto advice to use Madison Automotive for your car care. In the long run, it can save you time, unnecessary expense and frustration. Madison Automotive can also help you keep up with your scheduled preventive maintenance, which can also save you on repair bills by alerting you to potential problems before they get expensive.

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



Sniffing Out a Problem

Posted August 25, 2020 1:47 AM

Your parents probably taught you to have common sense. When it comes to your vehicle, common scents can also come in handy. Different smells may tell you about some conditions in your vehicle that need attention.

For example, you know what rotten eggs smell like.  If you smell them around your vehicle, it means sulfur can't be far away. Here's a surprising fact: Gasoline has a little sulfur in it.  There's a device in your exhaust system that's supposed to convert it to something that doesn't pollute the atmosphere. That device is a catalytic converter.  If you are smelling rotten eggs, maybe your catalytic converter is wearing out.  But it could also be a problem with your fuel injectors.  Either way, something's rotten that should be repaired.

Ever smell something sweet around your vehicle, maybe a little like pancake syrup? If you sniff out a little sweetness just when your engine is warming up or after you shut off your engine, you might be smelling some coolant (anti-freeze).  If it's leaking, then you may be getting a whiff of ethylene glycol, one of the coolant's components.  If the odor is strong inside the car, it could be a leaky heater core. This is important to get checked out because a leak in your vehicle's cooling system can eventually cause expensive damage.

How about that distinctive smell of gasoline? You could have a leak in your gas tank, a hose that vents your gas tank or a leak in a fuel injector line.  A gasoline leak needs to be tracked down since it could catch fire.  It can also be bad for your health if you breathe it in all the time.

When you step hard on the brakes, ever smell something like a rug's in fire? That could mean you've just overheated your brake pads.  If you detect that smell just driving around town, one of the brake calipers could be stuck.  To figure out which wheel has the problem, get out of your vehicle and smell each wheel.  It will likely be obvious where the problem is.

Here's one last smell.  Ever had your oil changed and right after you picked up your vehicle it smells like something's burning around the engine? That's because sometimes a little oil leaks onto the metal when the filter is changed or the oil is poured in.  It's a useful smell to know.  Because of you smell burning oil and you haven't had your oil changed recently, that could mean you have a leak in your engine.  It could be a gasket or a seal, but it also could mean the start of more serious issues. 

All of these things are signals that you should discuss with your service advisor to get them checked out.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600



Hitting The Brakes In Memphis

Posted August 25, 2020 1:47 AM

 

Hello Memphis, let's talk about brakes. drive But the mechanical aspects of the brakes themselves are just one issue. There's also the power brake pump and brake fluid. And then there are the tires, which are critical to the effectiveness of the brakes.

Let's step back. A new vehicle or truck rolls off a local Memphis showroom floor. It has brand new brakes with brand new brake pads. The brake lines and pump are filled with fresh fluid and are completely clean inside. And the tires are brand new, with full tread. It is ready to go.

Naturally, braking power is at its peak performance. Now the miles/kilometers start to add up on the vehicle. Memphis drivers tend to focus on the brake pads. In the automotive business, the pads and shoes on drum brakes are called the friction material. That's because they provide the friction used to stop the vehicle. The pads are designed to be effective throughout their useful life – it's not until they are worn so thin as to be out of 'specs'  that they lose their ability to stop.

The mechanical parts of the brakes have pistons and springs that get quite a workout while breaking. Over long distances around TN, these wear and get gummed up. They start to lose effectiveness gradually and could even fail - a scary possibility. That's why a regular brake inspection at Madison Automotive is important for your vehicle and your family's safety. At Madison Automotive we can test the operation of the brakes and see if any parts need cleaning or replacing.

That leads us to brake fluid service at Madison Automotive. Some of the critical additives in the fluid that lubricate and clean the vehicle fluid system are depleted over time. That and moisture building up in the system reduce the performance of the brake fluid. A brake service at Madison Automotive cleans out deposits, water and dirt. Then the system is filled up with fresh fluid.

The tires are what connect the vehicle to the road. Stopping force all comes down to traction. The better the tires grip the road, the more quickly you'll stop.

This is especially important on wet Memphis area roads and surface streets. Studies have shown that wet stopping distance increases significantly as tires wear down. TN vehicle owners need to understand that they can have brakes that are operating at peak efficiency and yet still be in danger because their tires are worn out.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
madisonautomotive.autotipsblog.com



Do you have a Clue (Get the Most Out of a Service Visit)

Posted August 25, 2020 1:47 AM

When you head to the doctor, you probably have it in your mind what you're going to say about why you don't feel good.  That way your doctor can use that information to diagnose your problem. You might want to think of that same approach when you take your vehicle in for a repair.

Experts say what will help the service advisor most is for you to bring in some well-organized descriptions about your vehicle's issues.  You might even want to write them down so you don't forget.  Is there an unusual smell?  What does it smell like?  Does the problem happen first thing after starting out? If there's an odd sound you hear, is it dependent on speed?  Does it change when you turn a corner?  

Keep your expectations realistic.  Some conditions may take a long time to diagnose and repair.  If you go thinking you'll be in and out in no time, you might be disappointed when you're told there are other customers ahead of you and you may have to come back tomorrow.  If you can make alternate plans to have someone pick you up and take you back when the vehicle is finished, that way you won't feel like you've wasted your time. 

Most importantly, be available for any communication from the service advisor.  If they have your cell phone and they have a question or need an approval for a repair, the sooner they reach you, the sooner things can move forward. 

The service facility wants your experience with them to be good just as you do.  With a little help from you, they'll get your vehicle back on the road and you'll have a smile on your face.

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



Memphis Drivers Severe Service Maintenance Schedules

Posted August 25, 2020 1:47 AM

Since driving requirements and lifestyles differ among Memphis drivers, your vehicle manufacturer publishes two auto maintenance schedules: the regular schedule and the severe service schedule. Which schedule should Memphis drivers follow? Here are some questions to ask yourself:

Are most of your trips less than four miles/six kilometers around Memphis?
Are most of your trips less than 10 miles/16 kilometers in below-zero TN temps?
Are most of your trips off-highway in TN?
Do you drive often in dusty Memphis areas?
Do you regularly tow a trailer or carry heavy loads around Memphis?
Do you drive in very hot or very cold TN weather?


Think about your typical week. Do you live by your nearest Memphis on-ramp and enjoy a non-stop commute? Or, do you drive the neighborhood car pool in stop-and-go traffic on Memphis surface streets?

Let's suppose your owner's manual says the severe service oil change recommendation is 3,000 miles/5,000 kilometers and the standard recommendation is 5,000 miles/8,000 kilometers. You know that you need to change the oil somewhere between 3,000 and 5,000 miles/5,000 and 8,000 kilometers. Analyze your driving patterns and Memphis weather and road conditions to determine which end of the spectrum you're closer to.

Why should Memphis residents care about this? Normal condensation causes moisture accumulation in the engine oil. Short trips around Memphis or winter driving means that the engine doesn't heat up enough for the moisture to evaporate. The water in the oil turns to oil sludge that clogs up your engine and doesn't let the oil protect it adequately. That's why TN residents need to change their oil more often – to clean the sludge out before it causes problems.

Carrying heavy loads (with or without a trailer) in TN summer weather causes your engine and transmission to run at higher temperatures and with more stress. The fluids will break down more quickly. Additives that clean and prevent corrosion will be depleted sooner. Air pollution and dust cause fluids to get dirty faster. Ditto for filters. All of these things can lead to premature wear and eventual repairs. If you want some expert advice, talk with your friendly and knowledgeable Madison Automotive service advisor. We can help you restore your vehicle to good working order and help you know the best schedule to follow.

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



Charge It in Memphis for Extended Battery Life

Posted August 25, 2020 1:47 AM

Here's an interesting statistic for our in Memphis, TN, drivers: Only 30 percent of car batteries make it to 48 months. And the life expectancy varies by where you live. It ranges from 51 months in extremely cold areas to just 30 months in extremely hot climates.

Why is that? It turns out that it's our modern cars with all their electric accessories that are to blame. Things like, GPS, DVDs and entertainment computers are keeping vehicle batteries from maintaining a full charge. The longer a battery goes with a low charge, the sooner it'll die.

It's clear that you Memphis drivers need to recharge your batteries. This is the job of the alternator. The problem comes when the car's demand for electricity is high and we are driving in stop and go conditions or short trips around Memphis. The alternator just can't keep up.

The result is shortened battery life. So what can we do to improve our battery's health?

We need to keep the battery as close to a full charge as possible. That can be hard because sitting for just 24 hours in hot weather between charges can be too long. When the weather's cold in Memphis, sitting for several days will cause discharge.

So some highway driving around TN will help keep a full charge if the battery has not been deeply depleted. Car batteries are not designed to be run down really low, or deep cycled, as it's called. So using your headlights or other power accessories when the car is off can deeply deplete your battery. Using the alternator to recharge from a deeply depleted state is also very dangerous to your battery because it charges too fast. In fact, on average, your battery would only last for ten recharges like that.

If you do find yourself with a dead battery or very low battery, use a good quality battery charger to slowly bring the battery up to full charge. Follow the instructions on the charger or talk to your friendly and knowledgeable service advisor at Madison Automotive .

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





The Right Oil for the Season (Engine Oil Viscosity)

Posted August 25, 2020 1:47 AM

As the temperatures plunge, certain types of engine oil may not flow as easily as they did when it was warmer.  Makes sense, doesn't it? Just like molasses gets thicker as the temperature goes down, engine oil does the same thing. So, maybe you're wondering if you have to change your oil as the seasons change so it's just the right thickness to lubricate your engine parts. 

How well engine oil flows is called its viscosity. There are different types of oil—some that have just one viscosity and others called "multigrade" oils.  Here's the difference.

A single viscosity oil will flow better when it's hot but not as well when it's cold.  A multigrade oil is engineered so that its flow properties at cold temperatures are different than they are at warm temperatures.  In other words, a multigrade oil can start out in colder temperatures acting like a thinner oil and then behave like a thicker oil when it's warm.  That's a pretty cool trick and it's why multigrade engine oil is used in nearly all vehicles.  Your vehicle's manufacturer has the correct viscosity of oil for your particular model included in the owner's manual.

Another choice you have to make when it comes to engine oil is whether you use conventional oil, synthetic oil or a blend of the two.  Synthetic oils have some advantages over conventional, such as resisting breakdown better and withstanding higher temperatures.

Check with your service advisor to see which viscosity and type of oil is recommended for your vehicle.  It's important that in cold weather, the oil flows through your engine at the right thickness so that parts are being properly lubricated.  That will make sure you'll get good fuel economy and performance, no matter what the temperature is.


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



No Strain, No Gain (The Basics of Oil Filters)

Posted August 25, 2020 1:47 AM

Ever wonder what one of the best things is to ever happen to your vehicle's engine?  It's the little thing that usually looks like a can, the oil filter.

Just like your kitchen sink strainer filters out errant particles of food from clogging your drain, the oil filter cleans out small particles that could cause your engine harm.

Your engine operates in a dirty, hot environment and gathers a lot of tiny contaminants like dirt, dust, little metal shards and unlucky bugs that get sucked in.  Get those things circulating in your engine and those little particles can cause friction, which starts wearing out those finely machined metal parts. 

You know how important it is to change your oil regularly.  It's vital that you change your oil filter at the same time to keep the oil as close to brand new as possible.

Most oil filters look like a metal can with some holes in the bottom.  Inside there are carefully chosen materials that can screen out the contaminants while at the same time allow the lubricating oil to pass through.  Early oil filters had steel wool, metal mesh or actual screens.  Then they tried fabric filters using material such as linen and cotton.  Finally, a less expensive disposable filter using paper and cellulose did the trick.

Cellulose or other synthetic media are used in most oil filters today.  Cellulose is inexpensive and effective.  Fibers filter out particulates and let the oil flow.  The other synthetic media have the ability to screen out even tinier particles while not significantly restricting the oil from getting through.  Engineers continue to work on even more advanced filter material.

Choosing the right oil filter is something our pros at Madison Automotive can help you with  because there are a lot of them out there.  Factoring into that decision are your driving habits, how far you drive and the temperatures to which your engine will be subjected.  While some filters will cost more than others, they may be worth it to extend the life of your engine. 

But most important is remembering to come have your oil changed at Madison Automotive regularly at the intervals recommended by the vehicle's manufacturer. Just like you wouldn't want to have a plumber come over to fix a clogged kitchen drain, you certainly wouldn't want to have to pay for major engine repairs if they could be prevented by regular oil and filter changes.


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



Madison Automotive Maintenance Tips: The Belt Goes On

Posted August 25, 2020 1:47 AM

drive All Memphis service advisors know that without the alternator, the battery will go dead in a few miles.

The serpentine belt may also run the pumps for both the power steering and power brakes. And on many vehicles, the serpentine belt powers the water pump. The water pump circulates coolant through the engine to keep it within normal operating temperatures. (On some vehicles, the water pump is powered by the timing belt instead of the serpentine belt.)

So you can see the serpentine belt does a lot of work. And it if breaks, it affects a lot of systems. That's why your vehicle manufacturer and your service advisor at Madison Automotive have recommended that it be changed every so often so that it doesn't fail.

Your friendly and knowledgeable Madison Automotive service advisor can perform a visual inspection of the belt to see if it has any cracks that signal the belt could fail soon and will measure the amount of belt material to make sure there is enough.

Your serpentine belt works in tandem with a spring loaded pulley attached to the engine called the tensioner pulley. Its job is to make sure there's a constant tension on the serpentine belt so that it doesn't slip. The spring can become worn and no longer provide the necessary pressure to keep the belt tight. At Madison Automotive in Memphis, we recommend that the tensioner be replaced at the same time as the serpentine belt.

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



Fuel Filter Replacement

Posted August 25, 2020 1:47 AM



Hello Memphis resident! You would never like to drink a glass of mud, right? Well, your vehicle feels the same way. It needs a steady supply of clean fuel in order to run well and deliver good fuel economy. The fuel filter's job is to clean dirt and rust out of the fuel before it gets to your engine. A clogged fuel filter can actually choke off the engine so that it won't start or run. Some fuel filters have a bypass valve that allows fuel to go around the clogged filter so your vehicle will still run. But, then the contaminated fuel can clog your fuel injectors and allow particles into your engine.

A vehicle with a partially clogged fuel filter might run well around Memphis, but sputter and strain on the because it's starving for gas. There are two things that affect how often you need to replace the filter. They are: where you drive in TN and the gas you buy. If you drive a lot on dirt or gravel roads in rural TN, your fuel filter will have a harder time keeping the fuel clean.

And, we hate to say it, but buying the cheapest gas from bargain stations sometimes means dirtier fuel that'll clog the filter sooner. Major brands tend to be cleaner and certainly have higher levels of detergent additives.

Of course, manufacturers recommend intervals for changing the fuel filter. But, it's a little more complicated than that for Memphis residents. Some manufacturers stopped listing recommended intervals for fuel filter replacement or have very long intervals like every five years or 80,000 miles (130,000 kilometers). So you may need to look to other sources for recommendations. Vehicles older than six or seven years are especially at risk because they have had time for dirt and rust to build up in the fuel tank. A clean fuel filter keeps the gas flowing. Even a partially clogged filter puts added strain on the vehicle fuel pump. That can shorten its life and result in repair.

As is often the case, spending a little money now on something as inexpensive as a fuel filter can save money for Memphis residents down the road by improving and preventing repairs. At Madison Automotive in Memphis, we can check your fuel filter. It is better than fixing a burned-out vehicle fuel pump or ruined fuel injectors.

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



Mercury Rising (Hot Weather Vehicle Concerns)

Posted August 25, 2020 1:47 AM

The heat is on, and your vehicle takes a beating when it is.  Several of your vehicle's systems are under extra stress in hot weather, so here are a few to make sure are getting the care and maintenance they need.

It makes sense that the cooling system is one to make sure is in top shape.  Vehicle breakdowns in summer are often due to a problem with one of the cooling system's components.  Coolant levels have to be up to specs, the ratio of coolant to water must be correct and the hoses, pumps, belts and radiator must all be working properly in order to prevent vehicle overheating.

Summer is also hard on your air conditioning system.  You might find that no air is blowing out of the vents or maybe only hot air is coming out.  Air conditioning equipment is best diagnosed and repaired by a trained and experienced technician.  The problem could be in any number of components, including the condenser, compressor or blower motor.

You may think the battery gets a break in the summer, but heat will shorten the life of your battery more quickly than cold.  Your service facility can analyze the condition of your battery and tell you whether it's healthy or needs replacing.

Tires take a beating in heat, too.  Pavement can be scorching hot, and the sun's rays break down the rubber.  Watch inflation pressure in hot weather, too, since air expands the hotter it gets.  Your technician can check air pressure, tread depth, cupping and other uneven wear and diagnose the source of any problems. 

And don't forget brakes.  One video online says brakes on a car that were driven hard on a track reached temperatures as high as 500°C/932°F.  Heat can reduce stopping power.  A technician should periodically inspect pads, rotors, drums, lines and other components to find a problem before you lose the ability to stop.

Finally, engine oil is really put to the test when it gets hot.  Your vehicle service facility will make sure you have enough oil and the proper kind to keep your engine's components properly lubricated.  Help your vehicle beat the heat.

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



The Truth about Tire Pressure (Tire Inflation)

Posted August 25, 2020 1:47 AM

Most light vehicles (under 10,000 pounds/4,500 kg) in North America sold from 2008 model year on have a feature that many people are confused about.  It's the tire pressure monitoring system (TPMS).  You may have some experience with it yourself if you own a newer vehicle.  Vehicles with TPMS have sensors in each tire that are supposed to warn the driver when tire pressure gets dangerously low.  That's important because tires that are significantly under-inflated can cause very serious accidents.

Unfortunately, many drivers think the TPMS does all the work keeping track of tire pressure. To them, as long as the warning light or gauge isn’t giving a warning, the tires must have the proper amount of air pressure in them.  That's not the case.

Tire pressure monitoring systems aren't all created equal.   Some give you a digital readout of the pressures in each individual tire.  But many simply have a warning light that looks like the cross section of a tire with an exclamation point in the middle.  If you don't know what it is, it's because it's not instantly recognizable as a tire.  In fact, one company that makes TPMS, Schrader Performance Sensors, surveyed drivers.  Their study showed that more than 40 percent of drivers didn't know that that warning light was. 

One out of 5 of the drivers who did know what the light was only looked at their tires after the light came on to see if they could see any that needed air; they never checked them with a tire gauge or had someone else do it.  Ten percent of them didn't do anything when the light came on.

In most vehicles with TPMS, the warning comes on only when the tires are more than 25% underinflated.  The American Automobile Association says that's under the pressure you need for safe vehicle operation.

The bottom line is once a month you should make sure your tires are inflated to the manufacturer's recommendations.  That means each tire should be measured with an accurate, external tire gauge.  To be confident you are getting a correct reading, take your vehicle to a reputable service facility where their equipment is calibrated and they know what they're doing.

Severely underinflated tires can contribute to an accident that kills or severely injures people.  The idea behind TPMS is well intended, but the system was never meant to replace regular inflation measurements and maintenance.  Periodically have your tires checked for proper inflation.

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



The Key Won't Turn! (Ignition Problems)

Posted August 25, 2020 1:47 AM

You've just arrived at the store shopping and you're ready to head home.  You put your key in the ignition and… oh, no! The ignition won't turn! What do you do now?

Don't panic.  There are some things you can do to get going again.  The first thing to do is see if you have a locking steering wheel, an anti-theft feature that was introduced around 1970.  Sometimes it sticks.  Move the steering wheel side to side while you try to turn the key and you might be able to get it to release. 

Another thing to check is to see if your vehicle is in gear.  Most vehicles will only allow you to start the ignition if it's in park or neutral.  If you have an automatic transmission vehicle and it is in park, try jiggling the shift lever and try the key again.  Sometimes the safety mechanism doesn't properly make contact or gets a little sloppy. 

If both of these don't work, it could be your vehicle's battery is dead.  Some newer electronic systems require power so the key can turn. Others have alarm systems that detect if doors are open. 

Other issues that can cause key problems include something jammed in the lock cylinder.  Or some of the springs or pins inside may be stuck.  Consider that it may be the key itself.  Sometimes they get bent or simply wear out from the number of times they've been put in and taken out of the cylinder.

No matter what the cause, the first time this happens you should have your repair service facility check it out. That’s because if it happens once, it can happen again.  Even if you were able to get going again on your own, your ignition/key has warned you that something's wrong.  Have it checked out by a pro so you’re not locked into a bad situation.

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



Don't Do It Yourself (Perils of DIY Vehicle Repair)

Posted August 25, 2020 1:47 AM

Your vehicle is a complicated machine, and yes, it would be nice if you could take care of all of its problems yourself.  There was a time when vehicles were simpler and it wasn't too hard for a weekend mechanic to replace brakes, adjust a carburetor or perform a tune-up.  But vehicles are far more complicated these days, with traction and stability control, anti-lock brakes, air bags and fuel injection just a small sample of the new technologies. 

Like a lot of things these days, technology changes in leaps and bounds.  Anyone who repairs vehicles has to stay up on the latest computers, sensors, suspensions, steering, electronics, hydraulics and more.  Many power steering, braking and heating and air conditioning systems that used to be mechanical are now being replaced by electronic systems.  Computers are an integral part of  much of the latest automotive technology, something you didn't see a lot of until as recently as the 1990s.

Today's most highly-trained technicians are able to keep up with how to perform the latest repairs and service by continuing education about their craft.  When once an auto repairman could do fine with a lift and a good set of tools, now specialized electronic analysis equipment and tools are must-haves when it comes to vehicle repair.

Because of how fast technology changes, access to the latest repair databases and manuals is also important.  Manufacturers require certain service procedures to be performed precisely, and any other way can leave a vehicle compromised when it comes to performance and safety. 

Your vehicle is capable of traveling at high speeds on challenging surfaces with ever-increasing traffic issues and unpredictable obstacles.  You need your vehicle to be working up to its engineered potential.  That's why you should leave repairs and service to professionals.  They work on vehicles every day, and years of experience with hundreds of repairs equip them to deal with the unexpected as well as the routine. 

When you develop a trusting relationship with a reputable service facility, you can have confidence that the maintenance, service and repairs are being done by people who know what they're doing.  Your safety and your vehicle's performance and reliability are well worth it.

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



Good Timing: Proper Timing Belt Replacement Saves Money for Memphis Drivers

Posted August 25, 2020 1:47 AM

Knowing how their engine works can help Memphis drivers make informed decisions about auto care and prevent repairs to their vehicles. This is especially true when it comes to timing belts.

An engine's power is generated in the cylinders. Inside the cylinder is a piston that moves up and down while the engine is running. Power is generated in a cycle that includes four strokes of the piston. First, the piston drops and a valve at the top of the cylinder opens to let in fuel and air. The piston then rises, which compresses the fuel and air. At this point, the spark plug fires, igniting the fuel and pushing the piston down. This downstroke transfers energy to the engine, which provides the power it needs to run. The piston rises again, and a valve opens to release the exhaust.

All of this movement is orchestrated by a timing belt. The timing belt is so named because it keeps the pistons and valves operating in synch with each other, just as a conductor keeps all of the instruments in an orchestra in time with one another. Thus, the timing belt is critical to the proper operation of your engine.

Not all vehicles in the Memphis area have timing belts. Some have timing chains. A timing chain is more durable and rarely breaks, but timing belts are cheaper, so many use them to save money.

Timing belts wear out and break, so part of preventive maintenance for Memphis drivers is to replace the timing belt on schedule.

The results of failure of a timing belt depend on the type of engine in your vehicle, but they are always inconvenient and can be very costly for Memphis auto owners. If your engine is a non-interference engine and the timing belt breaks, the engine simply stops running. Now that can be an incredibly inconvenient situation depending on where you are driving around Memphis when it breaks, but it won't cause any engine damage. On the other hand, if your vehicle has an interference engine and the timing belt breaks, the valves on your cylinders will actually fall into the path of the pistons. Then things start getting chewed up by the motion of the engine and it will cost thousands of dollars to get everything sorted out again. Compounding the problem is that there aren't any warning signs before a timing belt breaks. A visual inspection of the belt is difficult also. In some vehicles, parts of the belt may be visible, but most vehicles hide the belt under a cover.

The timing belt doesn't even have to break to cause major engine damage. If it slips, even one notch, the result could be engine damage with repair costs in the thousands of dollars.

Our only car care option is to simply replace the timing belt periodically. You can check your owner's manual to find out how often your timing belt should be replaced. Many vehicles need a replacement at 60,000 miles (100,000 kilometers), but the recommended replacement mileage could be as high as 90,000 or 100,000 miles (145,000 to 160,000 kilometers). If your owner's manual recommends replacement at 60,000 miles (100,000 kilometers), however, don't wait until 65,000 miles (105,000 kilometers) to get it done. Remember what you're risking.

Replacing a timing belt is not a cheap part of preventive maintenance for Memphis vehicle owners. The belt is usually difficult to get to and often requires removal of some of the engine accessories. The cost of the replacement, however, is a lot less than what the repairs may cost if the timing belt fails.

For more auto advice on timing belts and other engine components, you can always consult with your service advisor at Madison Automotive. When it comes to car care, ignorance is not bliss. It can end up costing you in a big way.

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



Not So Cool (Air Conditioning Systems)

Posted August 25, 2020 1:47 AM

There's nothing quite like getting in your vehicle on a hot day, switching on the air conditioning and having warm air blow out of the vents.  You may have had no problem for months and then, one day, you are driving around in a sauna. You're hot stuff, but not in a good way!

So what goes wrong when the AC isn't working? It could be a lot of things because the system has many different components.  One thing that's a common cause is the vehicle is low on refrigerant (it used to be called Freon).  If that's the case, it's not as simple as simply adding more.  Sure, it may fix it quickly for a short time, but it's more likely than not that the refrigerant will just leak out again.

The original Freon used in air conditioners was destroying the Earth's ozone layer, so that's not used much any more.  But the one that's currently used also contributes to global warming, so it's important that as little of that escapes as possible.  So a technician will determine if there's a leak in your system, where it is and fix that before adding new refrigerant. 

Your vehicle also has an evaporator or two, and those can fail.  Leaks are often the problem with them as well.  The big component that can go bad is the compressor, often a victim of age, wear or neglect. 

A technician will also check to see that the blower is working correctly.  That's what blows that cool air into the cabin.  Sometimes the motor will fail, a relay will go bad or a fuse will blow.  As you can see, there are lots of different parts involved here! 

The good news is that your vehicle's service facility has the special equipment to recover the refrigerant and check the system's pressure, both vital to properly servicing the air conditioning system.

As with many vehicle components, regular maintenance can go a long way to minimizing problems in the air conditioning system. It can reduce the chance of the compressor having to be replaced, too.  Pretty cool, huh?

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



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