Posted on 12/26/2021
So you thought you only had two brake lights. Look again and you'll see one in the center at a higher level than the two on either side of the vehicle. They're sometimes in the inside of the vehicle behind the back window, or they could be in the deck lid, on the roof or on the spare wheel carrier, But why is that third brake on your vehicle? Experts say it helps prevent rear end collisions. Tests done by installing the third brake light in taxis and fleet vehicles showed fewer rear end crashes in the ones that had the extra light. The third brake light was mandated in new passenger cars in 1986 in the US and Canada. The requirement was added to new light trucks and vans in 1994. Sometimes it's difficult to know if your third brake light is even working. Many vehicles have bulb warning systems that alert you to non-functional bulbs, but not all do. Your vehicle service facility will often check to see if all your turn signals, taillights and headlights are worki ... read more
Posted on 12/12/2021
You've probably never paid much attention to the writing on the sides of your tires, but they contain a wealth of information. There's a long combination of letters and numbers that can tell you a whole lot about what tires your vehicle was designed to be riding on. Let's check out this example found on an SUV: P245/70R17 108T. The first letter, P, means it's intended for passenger vehicles. If there's no letter, it means it's a metric tire. If there's an LT at the beginning or end that means a tire designed for light trucks. Moving on to our example, the 245 shows how wide the tire is in millimeters from sidewall to sidewall. The number that follows in our example, 70, means the height of the tire is 70% of its width. The letter after that in our example, R, describes the type of tire (on this vehicle, radial). Following that is the diameter in inches, in our SUV example, 17 inches. How much load the tires' sidewalls are designed to take ... read more
Posted on 12/5/2021
There are some boots that don't come in a shoe box and aren't worn on your feet. They are called axle or CV boots, and they can be important parts for many vehicles. That CV stands for constant velocity. CV axles are mainly used in front-wheel drive and all-wheel drive vehicles. They're also used in some rear-wheel drive vehicles with independent suspensions. They have two CV joints, one inner and one outer, placed between the axle and the drive wheels. That way the vehicle's engine power can drive the wheels, no matter what angle they are. They also adjust for the different speeds wheels turn as they go around corners. Because roads are full of all sorts of hazards (dirt, oil, water, grime), these CV joints need to be protected. They also have grease in them to keep the bearings moving smoothly. That's the job of the rubber boots that are supposed to keep that debris out. These CV or axle boots are made of rubber or plastic and usu ... read more