Out of Joint (CV Joint and Boot Replacement)

If you have a front-wheel-drive vehicle, it has components called CV joints which enable you to turn your wheels smoothly. The CV stands for “constant velocity.” In essence, it’s a set of gears that connect a shaft that allows power from the transmission to be sent to the wheels. When you turn the wheels, no matter what angle, the input velocity rotation will be equal to the output. Thus, the name, CV (constant velocity) joint. Other vehicles with 4-wheel drive and all-wheel drive also use CV joints.

If one of your CV joints isn’t working right, you may find your vehicle difficult to handle. If one breaks, your vehicle may stop moving. So, it’s important that CV joints be in top working condition. The joints need a lot of lubrication, so they are surrounded by grease. There’s a rubber enclosure around them called the boot which holds the grease in and protects CV joints from the elements.

The biggest problems come when one of those rubber boots cracks. Water and dirt can then get into the joint, causing it to wear down and lose all its vital lubrication. It’s important to have your CV joints inspected regularly so a technician can spot cracks before the CV joints are ruined. Sometimes just the boot can be replaced before any major damage is done. But when the joint does go bad, it must be replaced.

Signs your CV joint needs changing out? You might hear a clicking sound when you turn if the CV joint is worn out. You might notice some thick, black grease around your wheel or on the pavement where you park your vehicle. You might also feel your vehicle vibrate when you’re going fast.

If you suspect you might have a bad CV joint, bring your vehicle in so a technician can determine what’s going on. Keep your CV joints in good shape and reduce the risk of them seizing up at an inopportune time so you can avoid being stranded.

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com

Making Sense of the O2 Sensor (Oxygen Sensor Replacement)

As you know, today’s vehicles rely on a lot of computers in them to keep them running clean and efficiently. Those computers depend on information delivered by several sensors throughout the engine and exhaust system. And one of the most important is the oxygen sensor.

Known as the O2 sensor for short, it looks for too much unburned oxygen that has made it into the exhaust. That signals something isn’t right with the engine’s air-fuel mixture. The sensor sends signals to the engine’s computers, which can then make adjustments to make sure the engine is running as it was designed to.

Some vehicles can have several O2 sensors, and since they can measure oxygen at various points in the combustion/exhaust process, the computers can pinpoint where the problems lie. For example, an O2 sensor can detect how much oxygen is coming out of the engine’s combustion chamber, and another one can measure oxygen coming out of the catalytic converter.

As you can see, it’s important that those O2 sensors are working correctly. If they’re not, the computer is getting bad information. Garbage in, garbage out. That can result in lousy fuel economy and excess pollution coming out of your tailpipe. It can also affect your vehicle’s performance. Sometimes your Check Engine light will illuminate when one of your O2 sensors goes bad. Or you may notice your engine misfiring or idling roughly.

If you notice any of these symptoms, bring your vehicle on in, and a technician will pinpoint the trouble spot.

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com

Beware Dangers of Spring Driving (Seasonal Driving Tips)

Sure, winter is quickly fading in the rearview mirror, but the peril of icy roads is replaced with a whole new set of driving challenges in spring.

Deer and other wildlife. You are not the only one who gets spring fever. Animals do, too, and spring is the time they start looking for mates and food. Be extra careful at dawn and dusk when deer are especially active. Hitting a deer (or having them jump into your path suddenly) is a frightening experience, and even a deer/vehicle collision at slow speeds can cause injury and/or loss of life for both animal and humans, let alone expensive damage to the vehicle. Be extra vigilant during spring.

The angle of the light. As the seasons progress, you’ll notice sun angles change. The sun is rising earlier every morning and setting later at light. When the sun is low in the sky, that glare can render you almost completely blind. Make sure your windows and windshield are clean; don’t forget the inside glass, too, which can build up a haze over the winter.

Potholes. The freezing and thawing of pavement is shockingly effective at busting up asphalt and concrete. The holes left behind can seem like moon craters, and if you hit one or more hard, they can cause you to lose control of your vehicle, increasing your chances of an accident. They also can cause some significant damage to your vehicle. If you feel your vehicle pulling to one side, notice it has a rough ride or hear noises you haven’t heard before, have your suspension’s integrity inspected at your vehicle service facility.

Children playing. Kids are excited to get back outside, running wild, playing with balls and toys… just being kids. These newly-rediscovered outside thrills can also steal away their attention from what’s going on around them and they may dart out onto the street before you know it. Spring is a time to be vigilant and devote extra concentration to roads and neighborhoods.

Spring is such a breath of fresh air. Remember to be super careful of a whole new set of hazards winter made you forget about for a while.

Autotronics of St. Peter
111 Jefferson Avenue
St. Peter, MN 56082
507.934.9290
http://autotronicsstpeter.com