AUTONET TV

Why did my vehicle fail its emissions test?

We all want to breathe clean air and keep our planet green.  One of the ways to do that is by requiring all vehicles with internal combustion engines to pass an emissions test.  That’s because these vehicles can be big polluters.  

Everyone wants their car to pass the test so they can continue their day-to-day driving routine.  But then comes that one day when they tell you your vehicle has failed.  Why does that happen?

One of the most common reasons is that your gas cap is leaking or loose (or maybe you don’t even have one on your vehicle!).  The gas cap is supposed to seal in vapors, but sometimes its seals or gaskets dry out or crack. Replace it, and you’re good to go.

Another common reason your vehicle failed the test is that your catalytic converter isn’t doing its job. It is supposed to convert toxic gases from your engine into ones that don’t pollute the air.  There are many reasons the catalytic converter may not be working.  It may be physically damaged, or the steady flow of exhaust gases has fouled the converter. 

You may have a bad oxygen sensor. It’s supposed to measure how much oxygen is in your exhaust.  This can cause the air-fuel mixture to be too rich, resulting in too many hydrocarbons in the exhaust. Your ignition system may also have problems, such as worn-out spark plugs.  Dirty fuel injectors can contribute to excess emissions.

Believe it or not, a dirty engine air filter may be the culprit. If it hasn’t been replaced for a while, your vehicle may be emitting too many hydrocarbons -  something that will cause your vehicle to fail the emissions test.

You can usually avoid a failed emissions test by maintaining your vehicle regularly.  The best way to do that is by bringing it to our trained technicians, so your vehicle gets the service it needs, scheduled and non-scheduled.  Plus, you’ll be doing your part to keep our air clean.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Read a Good Tire Lately? (Tire Wear)

There's lots of good information to read in books and online.  You might not know that you can also "read" your tires and learn a lot about what shape they're in and if they are in need of attention. It's important to know how your tires are doing because a tire failure can be very dangerous to you, your passengers and others on the road near you.

You read your tire by looking at the surface that rides on the road, where the tread is.  Check out the outer and inner edges.  If you notice there's more wear on the inner or outer edge than on the rest of the tread, your vehicle could be out of alignment.  Wear on an inner or outer edge could mean your wheels are leaning too much to one side.  When you see this, visit our service center soon to have the alignment checked.

What about if both edges are worn? That could be a sign that you don't have enough air in that tire.  In an underinflated tire, the middle is not contacting the road surface as much as the edges, so the edges wear down first.  It could also mean that you're taking corners too aggressively or your tires haven't been rotated on a regular schedule.

Another thing you might see on your tires' tread area is wear in the center of the tire.  That means you likely have too much air in that tire.  Too much air makes your tire contact the road in the middle more than on the edges so the middle wears down prematurely. 

You might also see some smooth spots on the tread in irregular spots. This is called cupping. This is sometimes caused by suspension problems. A technician can examine your suspension to see if it is up to the manufacturer's specifications.

Finally, you may spot tires that are worn unevenly in a pattern that goes diagonal to the tread pattern.  This could mean your tires are out of balance, something our service center can check. They might also check alignment at the same time.

Your tires are the only part of your vehicle that contacts the road surface.  That means your acceleration, traction, steering and braking are all dependent on your tires being healthy. Maintain your tires by having one of our trained technicians read the clues and making sure they're always in roadworthy shape. 

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

A Sticky Brake Situation (Parking Brake Service and Maintenance)

We've all been there.  You park your vehicle on a steeper than usual hill and worry about it rolling down while you're running your errands.  So you decide you'll use the parking brake.  When you get back, you release the parking brake, hit the ignition, put it in gear and—uh, oh—you can feel the parking brake is still on.  It's stuck.  What do you do now?

Welcome to the world of infrequently-used parking brakes.  Yes, they do stick for several reasons. It's common for components to corrode and get locked up.  Sometimes if you have applied it extra hard, it can jam.  Could be a rusty cable, could be a spring that doesn't return the brake to its disengaged position.  Some pieces just break when they're stressed for the first time in a while. A caliper or the pivot arm it's on can also stick.

There are a few things you can try to unstick it.  Carefully rock your vehicle by putting it first in drive and then reverse.  You have to be careful doing that, though, because sometimes you can damage the transmission.  You can try working the parking brake control a few times to see if that will loosen the corrosion.  If you can't unstick it, you can try driving slowly a short distance to a repair facility near you.  Sometimes it won't cause damage to the brakes but it depends on how tightly the parking brake was applied and what was stuck.  You may also have to have your vehicle towed to a repair facility.

In any case, once you've seen these symptoms, have your vehicle brakes looked at by a professional who can fix the root of the problem.  Better yet, don't let your vehicle get in this condition; regular maintenance and inspections by a trained technician should prevent you from getting in a jam somewhere thanks to a stuck parking brake.  You could use a "brake" like that.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Putting a Stop to Brake Problems (Brake Service)

It's safe to say that most drivers take their brakes for granted.  You press on the brake pedal and the vehicle slows down or stops.  It's easy to see why it is so important for your vehicle's brakes to be working correctly.  Brakes are an important safety feature of any vehicle.

When it comes to your brakes working correctly, maintaining them regularly will ensure that you will always be able to slow or stop your vehicle in any situation, whether on a sunny day on dry pavement or a bad weather day on slippery surfaces.  And that is why regular brake service is such a sound investment for all drivers. The combo of brakes" and "surprises" doesn't usually end well.

You might already know about some of the parts of your braking system.  Terms familiar to you might be pads, rotors, and calipers. In short, the calipers press the pads, which in turn contact the rotors.  The resulting friction slows your vehicle.  Another type of brake uses a drum and brake shoes.  But both count on friction to work.

When you come in to have us check your brakes, we'll make sure those parts are all in good working together and meet the specifications of your vehicle manufacturer.  But there are other important components as well.  Your brake system has several parts of a hydraulic system that uses fluids to conduct the pressure you put on the brake pedal to the brakes on all of your wheels.  There are hoses and lines that can sometimes degrade because of road salt or debris.  

Last and not least, your vehicle has an emergency or parking brake. It's something you'll need to prevent your vehicle from rolling when you park on a steep incline. Your parking brake also is an important backup if your hydraulic brakes fail.  

Give your brakes some tender loving care with regular service and they'll be there when you need them.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

The Engine Gets a Boost (Turbocharged Engine Maintenance)

If someone told you that your vehicle could have the same power but with a smaller engine, wouldn't that sound like great idea? Just think, a smaller engine would save you money at the gas station and you'd still get the same horsepower.

The technology to do just that has been around for a long time. It's called a turbocharger.

Race cars and other performance vehicles have been using turbochargers for years. It gives them a power boost without the need of a bigger engine, saving them fuel and pit stops.

Automakers have offered turbo gasoline and diesel engines for years, but there were problems with durability. Plus drivers had to make some driving adjustments with the way turbos delivered power. Newer turbos, though, have been vastly improved, and manufacturers are including them in more models. For example, Jeep offers its 2019 Cherokee with a choice of two engines that each make about 270 horsepower. One is a 4-cylinder turbocharged engine and the other is a 6-cylinder conventional gasoline engine. The general rule of thumb is: the fewer the cylinders, the better the fuel economy.

A turbocharged vehicle uses a turbine that is turned by exhaust gas. That compresses air that goes into the engine, which then allows it to use more fuel per second, increasing power. One advantage of a turbo is that it is only engaged when the driver demands more power from the engine by stepping on the throttle harder.

One thing to remember, though, is that turbocharged engines have additional parts and are more complex. That means they can be more expensive to maintain. The upside? You'll likely save fuel.

Like any complex machine, it's important that you maintain your turbo vehicle so it will give you more years of service. McPherson Automotive technicians are trained to inspect and service the systems associated with a turbo engine. If you already drive a turbocharged vehicle, keep up your regular maintenance schedule to get the longest life and performance out of it.

Because of the advantages these powertrains offer, turbo engines are definitely here to stay.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net