AUTONET TV

Go With the Flow (MAF Sensor Replacement)

A driver brought her vehicle into the shop the other day and told us how she was getting lousy fuel economy and that the engine was running rough.  Plus, the Check Engine light was on.  Our technician checked the code the engine had generated (why the Check Engine light was on) and found the problem.  It was a faulty Mass Air Flow sensor, MAF sensor for short.

This MAF sensor is an important part of your vehicle.  What it does is calculate the amount of air going into your engine.  As you may know, air is taken into your engine where it's mixed with fuel.  Then, the spark plugs fire, that explosive fuel/air mixture detonates, and all these sequential explosions together provide the power to get your vehicle moving down the road. 

It makes sense that if the MAF sensor isn't sending the engine's computers the correct information on the amount of air going in the engine, the fuel/air mixture isn't going to be right. It will either too rich (too much gasoline for the amount of air) or too lean (not enough gasoline for the amount of air).

In this driver's case, the MAF sensor was damaged and needed to be replaced.  Another thing that may cause the MAF to give an incorrect reading is if its wires are dirty or faulty.  So, replacing or cleaning the wires important as well.

Other symptoms that your MAF sensor is bad? If your engine hesitates when you step on the gas, it stalls, or your vehicle is jerky when you accelerate. 

A malfunctioning MAF sensor is not just bad for performance.  Driving with your vehicle in that condition can cause more damage to your engine.  When you bring your vehicle in for us to check, a technician will thoroughly examine your engine to make sure all issues are taken care of.

Union Street Automotive
175 W Union Street
Newark, NY 14513
315-331-2525
http://www.unionstreetautomotive.net

The Power Behind your Engine (Alternator Diagnosis and Repair)

There's nothing like that sinking feeling when you turn the key and nothing happens in your vehicle.  A lot of us are quick to blame the battery.  But it may instead be your alternator that's failing.

Your battery supplies power to start your vehicle, but the alternator is what sends power when your engine is running.  The good news is alternators last a fairly long time, and it's not unusual to get seven years out of one. But they can give up the ghost thanks to the harsh conditions in the engine compartment.

Alternators have bearings inside them that keep things turning smoothly.  Debris, liquid, dirt and more can team up with the high temperatures your engine generates to cause those bearings to seize up.  That's not good, and if that happens, you may even be able to hear the bearings grind.

Other symptoms of a dying alternator are a squealing noise in the engine compartment or your headlights may go dim and bright, dim and bright.  You might even notice an electrical smell.  Any of these signs warrants a trip to your service facility.

Here's something else to think about.  If your alternator's bearings have seized up and the unit's shaft is not turning freely, that can destroy the belt that's attached to it.  So don't be surprised if your service advisor says both parts have to be replaced. 

There are different grades of alternators you can buy, but consider just how important this part is to keep your vehicle running.  Your service advisor will give you options based on your driving style and vehicle.  Remember, if you notice any of those symptoms that may signal a failing alternator, have it taken care of before you wind up stuck somewhere at the side of the road.

Union Street Automotive
175 W Union Street
Newark, NY 14513
315-331-2525
http://www.unionstreetautomotive.net

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.

Union Street Automotive
175 W Union Street
Newark, NY 14513
315-331-2525
http://www.unionstreetautomotive.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. 

Union Street Automotive
175 W Union Street
Newark, NY 14513
315-331-2525
http://www.unionstreetautomotive.net