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

Breathe Deep in St. Peter With a New Cabin Air Filter

Poor interior air quality is nothing to sneeze at, and St. Peter auto owners might be interested to know that more and more new cars are coming equipped with a cabin air filter. Check your vehicle owner’s manual, but they typically need to be replaced at around 12,000 to 15,000 miles (19,000 to 24,000 kilometers).

The filter is usually under the vehicle hood or under the dashboard. Some are a little tricky to get to, so you’ll want to have your friendly and knowledgeable Autotronics of St. Peter service advisor take care of replacing them.

As we said, many St. Peter people don’t realize they have a cabin air filter and come to Autotronics of St. Peter saying “my vents are smelling bad.” It usually turns out to be a dirty cabin air filter. A switch out and they’re on their way, smelling sweet.

St. Peter residents who suffer from allergies can really benefit from a cabin air filter as it keeps irritants to a minimum. If you’re one of them, you’ll want to replace your filter regularly.

If you do a lot of driving in dusty or polluted St. Peter conditions, you’ll need to change your cabin air filter more often.

Give us a call.

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

A Hot Mess (AC System-Compresser)

Air conditioning used to be a real luxury in a vehicle, but now it’s standard in most. Your vehicle’s air conditioning system is built to last a pretty long time, but like anything mechanical, sometimes it fails.

It helps to know a little about how the A/C works. There’s a compressor that pressurizes the refrigerant (you probably recognize the term Freon). That makes it hotter, so it then goes through a condenser that cools it off. Then another component takes out impurities and humidity before the Freon goes to a device that makes it lose pressure before it goes to the evaporator. That’s where it gets colder and takes the humidity out of the air. Then your vehicle’s ventilation system blows air over the evaporator, cooling the cabin air that gives you such relief on a hot day.

Of all these parts, one that does a lot of work is the compressor. It has to compress that refrigerant and circulate it through the system. It turns on and off several times when it’s working. The good news is that if it’s going to fail, it sometimes lets you know.

One of the signs that your air conditioning compressor is going bad is a noise under the hood when the engine is on, sometimes a squealing or grinding sound. It usually is pretty noticeable. Compressors have a bearing that can seize up after time, causing the belt that drives it to squeal when it’s trying to turn something that won’t turn. It will sometimes cause that belt to break.

Your service advisor can tell you if your compressor is repairable or must be replaced. In the case of a broken belt (often a serpentine belt that drives several components) the belt will have to be replaced as well.

The compressor also has a clutch that turns the compressor on and off so it doesn’t have to run all the time. Sometimes that clutch can fail, too, and your service advisor will often recommend you replace the compressor and the clutch at the same time. Our technicians can help make sure your air conditioning system keeps its cool, and you along with it.

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