Posted on 6/7/2020
So your vehicle won't start. What's the first thing that comes to mind? Battery dead? Starter motor worn out? Out of gas? Well, those are all reasons that make sense. But your vehicle may be refusing to start because one of its computers is being warned that to do so might damage it. Here's how that works. You have lots of computers in your vehicle. They need to know the status of things so there are several sensors monitoring various things going on. These sensors send information to the computers that adjust the fuel and air mixture so you don't waste fuel. They know when things aren't quite right and prevent you from starting your engine if that's going to damage it. Other sensors make sure the coolant is the right temperature, check to see you are not polluting the air and make sure other electronic components are performing their tasks correctly. Here's an example of a sensor doing its job. Your engine needs oil to lubric ... read more
Posted on 5/31/2020
Would you buy a jacket without even trying it on? Probably not, but it might surprise you that one study shows about half the people buy a vehicle after a short test drive around the block or none at all. If you're in the market for another vehicle, make sure you check out the most important things so you'll know if that's the right vehicle for you. Check out the gadgets. Love a good sound system? Then turn it up loud. Does it have enough bass for you? See how you like its navigation system if it has one. Try pairing your Bluetooth smartphone with the vehicle. Test out how to set the cruise control and how steady it keeps the speed. Back up and check out the rearview camera. If you buy this vehicle, you'll have to live with all of these things every time you drive. Test the vehicle on roads you know. See how it handles bumps and potholes, how it takes that tight curve that you drive every day to and from work. Driving on familiar roads gives yo ... read more
Posted on 5/24/2020
Today's vehicles have some pretty amazing technology in them, including a computerized braking system we all pretty much take for granted these days. Antilock brake systems (ABS) have been around for years but they help drivers stop in much shorter distances reliably than ever before. When you see your ABS warning light come on, it's important to find out what's causing the problem. It's a safety issue. Often the problem when the ABS light comes on is a faulty wheel speed sensor. (In some cases the traction control light will also come on, perhaps because of a non-working wheel speed sensor.) Your vehicle uses the speed sensors to measure the rotational speed at each wheel. That sensor sends the speed data to a computer that can then adjust braking power and prevent your wheels from locking up. If any of the wheel speed sensors isn't working right, the ABS warning light will go on and the vehicle's computer will turn off the antilock brake system. You'll s ... read more
Posted on 5/17/2020
Your vehicle's engine makes a lot of heat when it's powering you down the road, so it needs a way to get rid of that energy. That's why your vehicle has a cooling system, complete with a radiator and one or two radiator fans, also called cooling fans. Those fans make sure air keeps moving across the radiator so that the heat stored in the coolant can be dissipated outside when the vehicle is stopped or not traveling fast. Radiator fans can develop problems and can stop working properly or stop working altogether. Some signs to look for? If you're driving slowly and idling and you see your temperature gauge moving toward the red or hot zone, that could spell trouble. Another thing you may notice when a radiator fan is failing is that there may be a loud noise coming from the engine compartment. There are two types of radiator fans. One is mechanically connected to the engine and uses the engine's rotational energy to turn it. The other is an electric ... read more
Posted on 5/10/2020
Quick question. Which is tougher on a vehicle's battery, the heat or the cold? Believe it or not, it's the heat. Think about it. The battery often sits in the engine compartment next to that motor generating lots of heat. That can accelerate corrosion in the battery and may even cause water in it to evaporate. That will weaken the cranking power of your battery and shorten its life span. To take care of your battery, here are a few suggestions. It's a good idea to have it checked out to see what shape it's in. At your vehicle service facility, they have diagnostic equipment that can evaluate its condition. That can help you know how long you can expect it to last before having to replace it. At the same time, you should have your charging system evaluated. If your battery is not getting charged properly, it can be in great shape but not very useful when it comes to starting your vehicle. A technician will also check the ... read more
Posted on 5/3/2020
What a convenience power door locks are on a vehicle. The latest don't even require you to push the button on the key fob; all you have to do is have it with you. But sometimes there's a component of power door locks that can fail, especially when they are used several times each day. Those are called the door lock actuators. The actuator is an electric part that works with others (like motors and gears) to lock and unlock doors. You can hear them work, sometimes with the little whirr of the gear or the quiet clunk of the lock finishing its cycle. And it's good to pay attention to that sound because if it starts to sound different, it could be a signal that your lock is on the brink of failing. Another sign of a failing power door lock actuator is they start working intermittently or quickly and erratically. The driver's door is often the first to start acting up since it's the one that usually gets the most use. When you start to notice these signs ... read more
Posted on 4/26/2020
More and more of us are hanging on to our vehicles longer. A company by the name of HIS Markit recently released a report that shows the average age of light vehicles in the U.S. is now 11.8 years. Light vehicles are cars, SUVs (sport utility vehicles) and CUVs (compact utility vehicles). In Canada, the average life expectancy of a vehicle there is around 13 years, and in the U.S., it's around 15. Vehicles are lasting longer these days, and there are several reasons for that. One expert cites better technology and overall quality improvements. While in past years, vehicles were made mainly of heavier steel components, more modern vehicles contain lighter magnesium and aluminum alloys, high-strength steel, polymers and carbon fiber. They last longer and reduce the overall vehicle weight, and that can contribute to better fuel economy. Modern internal combustion engine designs have been improved, and since they use more computers, they are more efficie ... read more
Posted on 4/19/2020
When you feel your vehicle vibrating as you're driving down the road, one cause could be something you may not have ever seen: your driveshaft. It is underneath the vehicle and most drivers don't climb under there to take a look very often. The driveshaft is a cylindrical part that helps conduct the rotational power from your engine to your drive wheels. If you have a four-wheel drive vehicle, you may have two driveshafts. The drive shaft has bushings, and when they wear out, that's a likely source of the vibrations. When the bushings are in good condition, they prevent the driveshaft from vibrating. And if you don't get your vehicle repaired fairly soon after discovering vibrations, they'll continue to get worse and cause other components of the drivetrain to wear out. The driveshaft is, of course, only one part of the drivetrain. It includes other parts such as axles, transmission, differentials and joints. They all work together and ne ... read more
Posted on 4/12/2020
The pungent smell of rotten eggs can send people running for the hills. So when that odor is inside your vehicle, yikes! Yolks! The good news is that a trained service technician can search the source of that smell and stanch the stench… that comes from another words that begins with S. Sulfur. Fuel contains small amounts of hydrogen sulfide, but they're enough to stink up a vehicle when it's not properly burned. You may know that the smell of rotten eggs can often be a sign of a catalytic converter that isn't working the way it should. That could be due to age, damage or an abundance of oil that's clogging it up. If a sensor in charge of managing the fuel has failed, the engine can run with too rich of a fuel mixture. That can overload the catalytic converter and allow some of the byproducts to escape without interruption from the chemical reaction that is supposed to prevent them from going out the tailpipe. There's another possi ... read more
Posted on 4/5/2020
You've heard that expression, change is good. When it comes to your vehicle's oil, change is not only good, it's vital for the health of the engine. But there's one question that puzzles many drivers: how frequently should my vehicle's oil be changed? There is not one simple answer, but here are some guidelines that will help. It used to be pretty much a rule of thumb that vehicles got their oil changed once every 3 months or 3,000 miles/5,000 kilometers. But times have changed. Oil formulations have gotten better and engine designs have made longer oil change intervals possible. Most experts advise you to read the recommendations that come from the manufacturer that designed and built your vehicle. Their designers and engineers know more about your vehicle than anyone else. They spell out their recommended oil change interval and type of oil in your owner's manual. Many automakers say you can go at least 5,000 miles/8,000 kilometers betw ... read more