Did you know that today’s cars carry more computer power than the Apollo 121 Lunar Module that landed on the moon in 1969? New cars have as many as 12 networked computers and over five miles (eight kilometers) of wiring. In fact, for the last decade or so, computers have been controlling about 85% of your vehicle’s functions.
Cars have sensors for manifold air temperature, coolant temperature, manifold air pressure, airflow, throttle position, vehicle speed and oxygen content. All of this electronic wizardry is pretty complicated. So how do you know when there is a problem?
It’s simple – the Check Engine light comes on. The computer monitors all the sensors and uses that information to decide what to adjust such as the fuel mix, spark timing and idle speed. In addition, the computer monitors its own circuits. When it finds a fault, it turns on the Check Engine light and stores a trouble code in the computer.
It can be pretty disturbing when the Check Engine light comes on. We wonder just how urgent it is. Generally speaking, it is not critical like a temperature or oil pressure light. When you get one of those it means STOP NOW! When the Check Engine light shows up, you should get to your Portland automotive service center to find out what the matter is as soon as possible.
Since 1996, there has been a strong emissions control component to the Check Engine diagnostic. But if your Check Engine light flashes on and off, you know that it is more urgent and you need to get it checked immediately to prevent damage. You should slow down and avoid towing or heavy loads until you can get it checked out.
The automotive technicians at Tyler’s Automotive have special diagnostic equipment that will retrieve the trouble code from the computer and help determine what is wrong. From there, they can fix it and get you back on the road.
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.
There are a surprising number of small, inexpensive parts that can lead to expensive engine damage when they fail. It doesn’t seem right.
Fortunately a lot of those things can be taken care of in routine maintenance. They may not be easy to remember, because it is a long list, but your service center at Tyler’s Automotive can help you know what’s scheduled to be taken care of.
Some of us in Wilsonville Oregon really don’t look forward to going in for an oil change and then getting a list of the other things the manufacturer recommends.
But automotive maintenance is all about prevention, and addressing small problems before they get big. Let’s take the fuel filter for example.
You may not know this but the median age for private vehicles on our Wilsonville Oregon roads is over nine years. When cars get older, five years or so, they’ve accumulated a lot of dirt and rust in their gas tanks. If that dirt gets into the engine it can cause thousands of dollars worth of damage. So somewhere between that dirty gas tank and the price of a great vacation – is the lowly fuel filter: a very inexpensive part that doesn’t cost too much to replace. And your car’ll just run better too.
A clogged fuel filter can’t let enough fuel through. You might notice at first that your car is running fine around town, but struggles or sputters on the Wilsonville Oregon freeway or when you accelerate. Enough fuel can’t get through to meet the demands of higher speed. If it gets bad enough your engine might just shut off or not start at all, which could be dangerous.
Some fuel filters have a bypass. When they get clogged, they allow dirty fuel to move around the filter element so dirt ends up in the engine. We’ve already talked about how expensive that can be.
The fuel filter is even very important for newer cars. The fuel is still dirty even if there isn’t rust in the tank. It’s just that the fuel filter will need to be changed more frequently as the vehicle gets older.
How often should you change your fuel filter? Check your owner’s manual. Your Wilsonville Oregon service advisor at Tyler’s Automotive can tell you as well. It’s usually around thirty thousand miles or so. Ask if it’s time for a full fuel system cleaning as well. They often go hand in hand.
It’s good to know that your Wilsonville Oregon service center has your back. When you’re motivated to maintain your vehicle’s performance and to reduce operating costs, you’ll think of Tyler’s Automotive as your ally – and maybe even your memory.
We’re living in a disposable society. Everything from elaborate packaging to our clothing. Even cell phones are disposable. When replacement is cheaper than repair, the term “built to last” goes by the wayside. An exception is our vehicles. They’re still a very big investment and we want to make them last as long as possible – and we want to make keeping them as cheap as possible. When talking cars, it’s all about preventive maintenance. There is an old saying that says, “a stitch in time saves nine” and that is really true when it comes to taking care of your car. A great example is coolant service.
Your coolant not only protects your engine from overheating and freezing – it must also protect cooling system components from corrosion. Over time, coolant becomes corrosive and actually starts to damage your radiator and other parts. That’s why you need to have your cooling system serviced on a regular schedule.
The same is true for your power steering system, brake fluid, air conditioning system, differential and transmission. And of course, don’t forget those oil changes right on schedule. Skipping even one change can start the build up of harmful oil sludge.
Our engines are full of gaskets and seals. Fresh fluids condition those gaskets and seals to keep them from drying out and leaking. Automotive fluids contain additives that help clean and lubricate the various systems they protect. Over time, the additives are used up and the fluid just does not provide the protection it did when it was fresh. And don’t forget the mechanical systems. Changing brake pads before they are worn to the point that they cause damage to rotors is a great way to keep your operating costs down.
Replacing serpentine belts and timing belts on schedule is much cheaper than repairing the damage that can be caused by failure. Also, air filters, fuel filters, PCV valves and batteries are all important. Regular wheel alignments, tire rotation and balancing will make your tires last longer. And don’t forget to replace your shocks and struts when they wear out. Your fuel system needs regular cleaning to keep running well, prevent mechanical damage and reduce fuel consumption.
Now this is a lot to remember – too much really. But it is your Wilsonville automotive technician’s job to keep on top of this stuff. At Tyler’s Automotive we can tell you what your manufacturer recommends and help you with a plan to take care of it. We can advise you about which maintenance schedule you should use – the regular schedule or the severe service schedule – depending on the kind of driving you do. We also know the right fluids for your vehicle and may even suggest higher mileage formulations for your older vehicle.
Bottom line – take care of this stuff on schedule and you will reduce operating costs, prevent costly damage and maintain your warranty coverage.
Of course, you want your car to look as good as it runs. Regular washing will prevent rust and protect your finish. Take advantage of cleaners, waxes and protectants for your interior and tires. Your vehicle will look great and you’ll be proud to drive it longer.
Most of us can’t afford to throw away our car when it breaks down. By budgeting for regular preventive maintenance, we can prevent many inconvenient – and expensive – problems down the road, and can keep driving “old faithful” for years to come.