Category: Brakes

Them’s the Brakes (Brake Rotor Resurfacing)

Your vehicle’s brakes wear out. It’s inevitable. You’ll notice it when you step on the brake pedal and feel it harder to stop, or there’s vibration when you are braking.

Most modern vehicles have disc brakes that each use a brake pad that press on a disc (disc brakes!) called a rotor. The friction between them enables you to stop, and each time you do a little bit of the pad and the rotor wears down.

The original brakes on vehicles used a rotor that was thick enough to last through at least two replacements of the pads. But vehicle manufacturers who want to save costs and weight now make them thinner, and sometimes the rotors have to be replaced after the first pad replacement. But not always.

Vehicle manufacturers specify a minimum thickness to provide safe braking. Sometimes rather than having to have your rotors replaced, they can be put on a lathe and resurfaced. In other words, the surfaces of the disc can be slightly shaved off so the surface is flat and doesn’t wobble.

Whenever you bring your vehicle in to have the brakes checked, the technician will measure the thickness of the rotors to see if they can be resurfaced without leaving them too thin for safe braking. If they can, with the right tools and skill, the rotors can be resurfaced. If not, the rotors should be replaced.

Discuss the options with your service advisor. Our service center can recommend replacements that are designed to help stop your vehicle as well as or better than the vehicle’s original rotors.

Either way, keep in mind that keeping your brakes in top condition can supply the margin of safety that may one day save your life or the lives of those around you.

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

Put the Brakes On! (Brake Caliper Replacement)

Keeping your vehicle’s brakes in top shape is one of the most important things you can do for your safety and those on the road with you. Most drivers know a little about brake pads and rotors but maybe not so much about another brake component called the calipers.

Disc brakes work by a mechanical system that presses your brake pads against discs called rotors (you can usually see these discs through your wheels). The friction stops your vehicle smoothly when everything is working the way it should. The calipers use the hydraulic pressure of the brake fluid to apply the stopping power.

After they’ve been on your vehicle for a while, the calipers can get stuck or wear out. If calipers on one side of the vehicle work correctly and not on the other, you might feel a pull in one direction. You might feel the same kind of pull if the caliper is stuck and is applying constant pressure. You might hear scraping or squealing coming from a stuck caliper and you might smell burning on that side. The friction from a caliper that’s always applying pressure may cause that wheel to heat up, so after you’ve pulled your vehicle off the road safely, the wheel with the stuck caliper will might feel hotter than the others

Because there are many different components to the brakes, it’s best to leave the diagnosis and repair to a trained technician. They will run each wheel through a series of tests and inspections that can pinpoint the problem. Sometimes it involves more components than just the caliper that may need changing at the same time.

The best way to make sure your brakes will perform well is to is to have our service center perform regular inspections and follow the vehicle manufacturer’s recommended service. That way your brakes will be ready, willing and able when you call on them to put a stop to things.

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

The Need for Speed (Wheel Speed Sensor Maintenance)

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 still have working brakes, but you will lose the functionality of that computerized system.

When your vehicle warns you the ABS has a non-working sensor, you can have a technician check to see what’s going on. It could be one of the sensors is dirty and a cleaning will solve the problem. But it also could be that one or more sensors needs to be replaced.

A technician will use computerized diagnostic equipment to determine what and where the problem is, replace any bad parts and then check to make sure the system is fully operational.

Antilock brakes and traction control are significant technologies that help prevent your vehicle from slipping on less-than-perfect road surfaces, especially useful during wintery weather. Make sure they’re helping you drive the way they designed to.

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