Tire safety is only skin deep
Like the human skin, tires bump up against objects and they can be cut. The difference is we heal, they don’t. A ruptured to flat tire is proof positive that the tire has been damaged and needs to be replaced. The truly dangerous tire is the one that has had the outer layer of rubber skin cut to the cord but is still inflated (see our photo). A deep cut weakens the tire and makes it vulnerable to a possible blow out because the cords (belts) are not properly supported. Make sure all your tires are inspected inside and out before heading out for your summer vacation. Have you ever experienced a tire blow out?
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How Your Check Engine Light Works
Have you ever had an experience like this in Belleville Illinois? You drive through the one of those automatic car washes. When you get to the end, where the dryer is blowing, your check engine light started flashing!
You fear the worst, but within a block or two, the light stopped flashing, but stayed on. By the next day, the light was off.
You wonder; “What was going on?” Well, it’s actually a good lesson in how the Check Engine light works.
Your air intake system has a sensor that measures how much air is coming through it. When you went under the high-speed dryer, all that air was blasting past the sensor. Your engine computer was saying, there shouldn’t be that much air when the engine is just idling. Something’s wrong. Whatever’s wrong could cause some serious engine damage.
Warning, warning! It flashes the check engine light, to alert you to take immediate action.
It stopped flashing because once you were out from under the dryer, the airflow returned to normal. Now the engine control computer says the danger is past, but I’m still concerned, I’ll keep this light on for now.
Then the Check Engine Light goes off in a day or two.
The condition never did recur, so the computer says whatever it was, it’s gone now. The danger is past, I’ll turn that light off.
Now a flashing check engine light is serious. You need to get it into our Belleville Illinois shop as soon as possible. But if it stops flashing, so you have time to see if the problem will clear itself or if you need to get it checked. How does the computer know when to clear itself?
Think of it this way. The engine control computer is the brain that can make adjustments to manage the engine. Things like alter the air to fuel mix, spark advance, and so on. The computer relies on a series of sensors to get the information it needs to make decisions on what to do.
The computer knows what readings are in a normal range for various conditions. Get out of range, and it logs a trouble code and lights up the check engine warning.
The computer will then try to make adjustments if it can. If the computer can’t compensate for the problem, the check engine light stays on.
The computer logs a trouble code. Some people think the code will tell the technician exactly what’s wrong?
Actually, the code will tell the technician what sensor reading is out of parameters. It can’t really tell you why, because there could be any number of causes.
Let’s say you’re feeling hot. You get your heat sensor out – a thermometer – put it under our tongue and in a minute or two you learn that you have a fever of 104 degrees.
You know your symptom – a fever – but you don’t know what’s causing it. Is it the flu, a sinus infection or appendicitis?
You need more information than just that one sensor reading. But it does give you a place to start and narrows down the possible problems.
There are reports on the internet telling you that you can just go down to an auto parts store and get them to read your trouble code or buy a cheap scan tool to do it yourself.
There are two problems with that. First, the computer stores some trouble codes in short term memory, and some in permanent memory. Each manufacturer’s computer stores generic trouble codes, but they also store codes that are specific to their brand.
A cheap, generic scan tool, like you can buy or that the auto parts store uses, doesn’t have the ability to retrieve long-term storage or manufacturer specific codes. Your Belleville Illinois service center has spent a lot of money on high-end scan tools and software to do a deep retrieval of information from your engine control computer.
The second problem is that once you’ve got the information, do you know what to do with it? For example, a very common trouble code comes up when the reading on the oxygen sensor is out of whack.
So the common solution is for the auto parts store to sell you a new oxygen sensor, which are not cheap, and send you off on your way. Now your oxygen sensor may indeed have been bad and needed replacing. But the error code could have come from any of a dozen of other problems.
How do you know the right solution? Back to the fever analogy, do you need surgery or an aspirin? Leave it to the pros at Stock’s Underhood Specialists Inc.. Give us a call at 618.233.6119 and let us help you resolve your check engine light issue.
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Belleville Illinois Winter Prep Service For Your Auto
When winter approaches in Belleville Illinois, we break out the sweaters, coats, boots and mittens. We want to be ready for winter conditions. Your vehicle needs to be ready for winter as well. The last thing you want is to get stranded out in the cold. You need your vehicle to be safe and reliable. It’s a good idea to get caught up on any neglected maintenance items anytime – but the stakes are higher in the winter.
There are some specific things that we need to do in Belleville Illinois to have our vehicle ready for winter. The most obvious is having the antifreeze checked. If the antifreeze level is too low, it can’t properly protect your engine, radiator and hoses from freezing. If your car does not seem to be making enough heat to keep you warm, your antifreeze level may be low or you could have a thermostat problem. Get it checked out. If you are due for a cooling system service, now is a perfect time to have it done.
In the cold months around Belleville we always worry about being able to stop in time when it’s slick out. The first thing to remember is to slow down and allow yourself plenty of room to stop. Of course, you want your brakes to be working properly. A thorough brake inspection will reveal if the pads or any other parts need replacing. Check with your service consultant to see if it is time to replace your brake fluid. It accumulates water over time which really messes with your stopping power.
It is a really good idea to have your battery tested. A battery’s cranking power really drops with the temperature. If your battery is weak in the fall, it may not be up to winter. There is nothing like a dead battery in a snow storm.
Which leads us to an emergency kit. You should always have a blanket or something to keep you and your passengers warm if you get stranded. If you will be venturing away from civilization, pack more items such as food and water to help you survive. Keeping at least half a tank of gas is a good precaution if you get stuck and need to run the car to keep warm and it will help keep your gas lines from freezing up.
Stock’s Underhood Specialists Inc.
321 Centreville Ave.
Belleville, Illinois 62220-1909
618.233.6119
Winter in Belleville Illinois always makes us think of our windshield wiper blades – usually during that first storm when they aren’t working right. That’s why it’s a really good idea to replace your blades in the fall before the winter storms. If you live where there’s a lot of snow and ice, you might want a special winter blade that resists freezing up. And be sure to have enough windshield washer fluid.
The final thing to consider is your tires. Any tire can lose pressure over time – up to one pound every six or eight weeks. For every 10 degrees the temperature drops you lose another pound of pressure. So if it was 80 degrees outside when you checked your tire pressure two months ago and now it’s 40 degrees out, you could be down 5 pounds of pressure. That’s enough to be a real safety issue and it wastes gas too. You may need special winter tires as well. Your tire professional can help you find the right tire design for your expected road conditions.
If you’re getting winter tires, it is always best to put them on all four wheels. If you are only getting two, have them put on the rear – even if you have a front-wheel drive or four-wheel drive vehicle.
This is a very important safety measure recommended by tire manufacturers. Sliding or fish-tailing on ice and snow is a matter of not having enough traction at the rear end. That is why your newest tires should always be on the rear.
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Keeping Your Engine Cool In Belleville Illinois
The cooling system keeps our engine from overheating while you are driving around Belleville Illinois. Its job is to move heat away from the engine. Let’s talk about the various components of the system and how they work to accomplish this.
The radiator is the part most everyone associates with the cooling system. Coolant flows through the radiator which has fine cooling fins that draw the heat out of the coolant and dissipate it into the air. To make sure there’s enough airflow over the radiator, a fan pulls air over the cooling fins even when the car is idling.
In some vehicles, the fan is powered by the serpentine belt. On others, an electric motor runs the fan. Electric fans turn on and off as needed. You may have heard the fan kick on shortly after you turn your car off. The sensor has determined that the engine needs a little help cooling down to a safe temperature.
A hose connects the radiator to the water pump. The water pump pushes the water into the engine block. Now the engine block and cylinder heads have passages for the coolant to pass through without getting into the oil or the combustion chamber. These passages are referred to as the “water jacket”.
While the coolant is passing through the water jacket, it absorbs heat from the engine on its way to the radiator for cooling. Between the engine and the radiator is a gatekeeper called the thermostat. The thermostat’s job is to regulate the temperature of the engine just like your home thermostat regulates the temperature of your house. It gets your engine up to the correct operating temperature and then keeps it from overheating.
When your first start the engine, it’s very cold and needs to warm up. So the thermostat blocks the flow of coolant to the radiator. As the engine warms up, the thermostat starts to let coolant flow through the system.
The final component I want to talk about is the overflow reservoir. This bottle is designed to hold some of the coolant. It’ll have a mark that indicates whether or not you have enough coolant. This is where you should add coolant if you just need to top it off.
Caution: never open the reservoir or the radiator cap when the car’s hot. The cooling system is pressurized and opening them while it’s hot can cause hot coolant and steam to escape resulting in serious burns.
Cooling system failure is the most common mechanical failure in vehicles around Belleville Illinois. Your Belleville Illinois service center can do a periodic inspection of the components for leaks, loose connections and weakening hoses.
Stock’s Underhood Specialists Inc.
321 Centreville Ave.
Belleville, Illinois 62220-1909
618.233.6119
Your manufacturer has also specified a cooling system service interval. With a cooling system service, the old coolant is replaced with correct clean fluid that contains the additives required to prevent corrosion. The additives are depleted over time and you need fresh fluid for adequate protection. Your radiator pressure cap should be replaced at this service as well.
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Tuesday’s Trivia
Tuesday’s Trivia: Who’s the company that uses this sunflower logo?
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