AUTONET TV

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. A.G. Automotive & Diagnosis 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.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
http://www.agautodiagnosis.com

Everything You Ever Wanted to Know About Wheel Bearings

Why are wheel bearings for Winnetka vehicles important? It's simple: your wheel bearings keep the wheels on your vehicle. In today's A.G. Automotive & Diagnosis post, we'll discuss more about wheel bearings and how you can make sure they can do their very job while you drive around Winnetka, CA.

Wheel bearings are pretty simple parts. They're made of high quality steel and are engineered to last 100,000 miles (160,000)  or more if properly cared for. The bearings do two jobs: First, they allow the wheel to freely rotate with as little friction as possible. Second, they support the weight of the vehicle. For example, if your car weighs 3,600 pounds (1600 kilogram), each wheel has to support approximately 900 pounds (400 kilograms). That's a lot of heavy lifting over those long distances.

Even though wheel bearings are pretty straightforward, they need to be in near perfect condition to do their job for Winnetka vehicles. The bearings are packed with heavy grease to lubricate and protect them. A seal keeps the grease in and water and dirt out. It's when the seal starts to leak that problems begin. The grease can become contaminated, causing the wheel bearings to overheat and ultimately fail.

The first sign that your wheel bearings are in trouble is an unusual noise coming from a wheel. It could be a chirping, growling, rumbling or a cyclic sound. The noise could get louder or even disappear at certain speeds. Your technician at A.G. Automotive & Diagnosis can inspect for bearing wear by lifting the vehicle and checking for play in the wheel.

Now some wheel bearing assemblies are factory sealed. That means that they cannot be serviced – they can only be replaced. Those that aren't sealed can be serviced on schedule at A.G. Automotive & Diagnosis. The bearings are removed, cleaned and inspected. If the bearings are still good, they're re-installed – if not, they're replaced. They are then packed in grease and a new seal is installed.

If your vehicle has a factory sealed wheel bearing assembly, the entire assembly needs to be replaced when trouble arises. Unfortunately, the parts are pretty costly – but they usually last about 150,000 miles (240,000 kilometers) as long as the seals hold up.

Now, even a good seal cannot keep out water that's exerting pressure on the seal. So if you've driven through hub-deep water, your bearings should be cleaned and repacked if they're serviceable. If you have factory sealed bearings, you just need to watch for signs of premature failure. If your wheel bearings can be serviced, your manufacturer's owner's manual will recommend an interval, usually around 30,000 miles (50,000 kilometers).

If you have any sort of trailer, don't forget its wheel bearings. They probably need to be serviced even more frequently. This is especially true for boat trailers that are used to launch the boat by backing it into the water. These should be serviced every year, usually at the end of the season so that the bearings don't have the opportunity to rust all winter.

So what happens to Winnetka vehicles if wheel bearings fail? Well, the wheel can literally fall off the vehicle. I don't need to tell you how that could be. So check with your service advisor at A.G. Automotive & Diagnosis and see if your vehicle's wheel bearings can be serviced and when it's recommended. Listen for warning signs. If you've been fording streams or puddle surfing after rainstorms, be especially vigilant.

Visit the automotive professionals at A.G. Automotive & Diagnosis for a wheel bearing inspection. 

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
http://www.agautodiagnosis.com

Are There Blind Spots in Winnetka?

All Winnetka drivers have blind spots – and no, I'm not talking about the fact that you really don't sing like Adele. I mean the areas of the road that you can't see when you're driving around Winnetka.

First let's talk about our own blinds spots, and then we can talk about others...

To begin, we can greatly reduce blind spots by properly adjusting our mirrors to give the widest coverage possible. Make the adjustments in your vehicle before you start to drive.

First, Winnetka drivers should adjust their rear view mirrors to give the best possible view directly to the rear of their vehicle. Winnetka folks don't need it to get a better view of either side of the car, the kids in the back seat or their dazzling smile. It's pretty obvious, the rear view mirror should reflect the rear.

Next, lean your head until it almost touches the driver's side window. Adjust your side mirror so that you can just barely see the side of your car. Now, lean your head to the middle of the car and adjust the outside mirror so that you can barely see the right side of the car.

When Winnetka drivers adjust their mirrors this way, they'll have maximum coverage. Of course driving is a dynamic process – things change every second on CA roads and busy highways. So it's wise to take a quick look to the side when passing to make sure that another vehicle hasn't moved into an area you couldn't see in your mirrors.

As you drive around the Winnetka area, avoid staying in others' blind spots. You can't count on them to be watching their mirrors and looking out for you.
Here are some tips for passing a heavy vehicle on CA roads:
Avoid the blind spots. If you can't see the drivers face in one of his mirrors or in a window, he cannot see you!
Don't follow too close. If you can't see one of the truck's mirrors, you're too close.
Make sure there is plenty of room to pass. Trucks are long and take time to get around. If you're on one of our local two-lane highways, wait for a passing zone.
Don't linger when passing. Because the blind spots are so big on the sides, you want to get through them quickly. If you can't pass quickly, drop back.
Pass on the left whenever possible. A trucks' blind spot is much larger on the right.
The team of automotive professionals at A.G. Automotive & Diagnosis want you to watch those blind spots – but feel free to sing in the shower all you want.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
http://www.agautodiagnosis.com

Why You Have an O2 Sensor (Oxygen Sensor)

If someone asked you what gas made up the largest portion of the atmosphere, what would you guess? Well, it's not oxygen; it only makes up 20.9 percent.  But since we're talking about oxygen, you should know that your vehicle uses oxygen sensors to make sure your engine is running the way it should.

The oxygen sensors measure how much oxygen is in your exhaust.  If there's too much, it means there's a problem with the mixture of fuel and air.  The sensor sends signals to computers in your engine and adjusts the mixture so it maximizes performance and efficiency.  It does this constantly. 

Many vehicles have multiple oxygen sensors.  Some have one close to the engine, another close to the muffler.  Two measurements are better than one since they allow readings to be more accurate.  You may have a vehicle with a dual exhaust, so you'd have twice as many oxygen sensors.

Your oxygen sensors can fail.  One thing that can damage them is contamination from bad fuel.  The sensors can simply wear out, though they usually last a long time.  It's not unusual for an oxygen sensor to last 100,000 miles/160,000 km. One more thing that can cause an oxygen sensor to fail is residue from an engine that's burning oil.  Plus contaminants from the road like salt can also cause problems. 

Here are some signs that your oxygen sensors might be failing.

• The Check Engine light goes on.  In this case, your service facility can plug in a device that will read the code in your engine's computer to see if that's the problem.
• The engine is running roughly.
• Black, sooty smoke is coming out of your tailpipe.
• Your fuel economy is noticeably lower than it used to be.

Head to your service facility and tell your advisor what symptoms your vehicle is experiencing.  They have the equipment and training to track down the issue.  Note that simply replacing the oxygen sensor is often not enough since it doesn't get to the root of the problem; other repairs may be needed. 

So make sure your oxygen sensors are working the way they should be.  Oh, and back to the question of what gas makes up most of the Earth's air?  It's nitrogen, which comprises 78 percent of the air we—and our engines—breathe.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
http://www.agautodiagnosis.com