AUTONET TV

Getting from E to F (Fuel Gauge Problems)

Who thinks about their fuel gauge?  You probably don't… until it doesn't work any more.  Then you have to guess how much fuel is in your tank, and that's no way to live life on the road. 

Fuel gauges, like every other part in your vehicle, can fail.  And when yours stops working, you will probably want to head over to your service facility soon, because no one relishes running out of fuel.

The fuel gauge system is much more than just the gauge you can see on your instrument panel. Most systems have a float inside the fuel tank that goes up and down depending on the fuel level.  It's called the fuel sending unit, and it sends an electrical signal to the gauge (on the dash) telling it to display how much fuel is left in the tank. 

So, what could go wrong?  Well, a few things.  For one thing, corrosion from bad fuel can cause it to stick and it won't move up and down any more.  So you could fill up your tank and the gauge would still read Empty.  If a sending unit needs to be replaced, often the parts can be costly. The good news is that fuel sending units rarely fail and most drivers will never have one go bad.

Other things that can go wrong? An electrical problem could cause a fuse to blow and you won't get a reading at all.  A technician can figure out where that electrical problem is and how to repair it.  Finally, it's possible for the gauge itself (on the instrument panel) to fail.

One thing to keep in mind is if your fuel gauge isn't working, you might be tempted to carry around an extra container of fuel.  That's ok if it's outside the cabin, such as in the bed of a pickup.  But if you carry it inside the cabin or trunk, fuel fumes can be very dangerous for your health, even fatal.

A working fuel gauge gives you peace of mind… so you'll never have that "empty" feeling.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
www.mattdavisauto.com

Why Alignment Matters (Vehicle Alignment Maintenance)

It's one of those things that can happen on a multi-day road adventure or a quick trip to the grocery store.  You hit a pothole, go too fast over a speed bump, nail a curb.  When it happens, you think, "I wonder if that was hard enough to do any damage?"  But things seem ok and you continue on your way. 

Keep in mind that any blow to your vehicle's suspension can throw it out of alignment.  It can be a hard knock from the road or from another vehicle, such as being involved in a minor accident.  When your suspension is out of alignment, it means that the wheels aren't all pointing where they should.  And after a while, it can make your tires wear unevenly and cause problems with steering and handling.

Let's go back to that pothole or curb you hit hard.  Even though you think there was no damage done, if you wait until you see tire wear, you may need to replace all four tires, not an inexpensive proposition.

That's why it's a good idea to make sure your alignment is regularly checked by a qualified technician. If you get regular oil changes (a MUST!), consider having an alignment check while your vehicle is in.  That's especially important if you drive roads that resemble the lunar surface.  If you buy new tires, it's also strongly recommended that you have your alignment checked. 

You can have your front wheels aligned or all four, and if your vehicle is newer, it's not a bad idea to spend a little extra for the four-wheel alignment check.  Good alignment pays off with better steering and handling, less tire wear and—BONUS—better fuel economy since aligned wheels offer less resistance when they roll on the road.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
www.mattdavisauto.com

Not So Hot in Garner

When the weather turns cold, it's nice to crank up the furnace and enjoy the heat. But if your home's furnace doesn't work, it's not too comfortable. Same goes with your vehicle. When the heater's not working, things can get miserable. It could also signal some major problems, which we'll discuss later.

A vehicle's heating system is fairly complicated. It's made up of several parts, including a blower motor/fan, a heater core and some mechanical and electrical components. In basic terms, a vehicle's engine warms up coolant which is then sent to the heater core (which is kind of like a small radiator) behind the dash. That blower motor sends cold air through the heater core which heats up the air. Voila! Heat.

Diagnosing problems in this system takes a trained mechanic because of the different possible issues. Your heater core may need replacing; they are sometimes in tight spots and may be difficult to work on. Another possible problem could be a defective thermostat, which regulates how the coolant flows through the engine. You may have a leak somewhere in your cooling system. Those leaks may be something as simple as a detached hose clamp or as serious as a bad head gasket. A knowledgeable technician at Matt Davis Auto will be able to track the problems down.

For those reasons, it's wise to get your vehicle's heating system repaired. Not only can driving an unheated vehicle on a cold day freeze your fingers, some related engine problems that are not repaired could leave you stranded.

Smart drivers keep up the maintenance on their vehicle's cooling system; it's a hot tip to prevent a cold vehicle.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
www.mattdavisauto.com

When it Comes to Air Filters, Change is Good (Clogged Air Filter)

Engine air filters may not seem like a big deal, but when they’re clogged up with dirt, dust, and insects, your engine could wind up choking for air and not delivering you the power and performance it was designed to give.

There are actually a couple of air filters in your vehicle.  One filters the air going into the cabin (the cabin air filter), and the other filters air going into the engine.  That engine filter is the one we’re talking about. After several months and long distances traveled, your engine air filter accumulates the junk it’s preventing from getting into your engine. You may notice your engine misfiring, your acceleration may not be what it used to be, it may make strange noises, and the Check Engine light may come on.

When you notice any of those signs, it’s time to bring in your vehicle to have us figure out what’s going on. We’ll visually inspect your air filter.  Keep in mind that your vehicle’s manufacturer recommends a replacement interval for your make and model.  Typically, many automakers suggest replacing the air filter every 10,000-15,000 miles/16,000-24,000 km.  But if you drive in areas that are dirty and dusty, you should have it checked more frequently.  Also, if you spend a lot of your driving hours in congested urban areas, stop-and-go driving can also tax your engine air filter.

When replacing it, it’s important to get the correct filter. Automakers often offer a variety of engines in the same model, so our technician will make sure you’re getting the one that’s made for your vehicle’s configuration.  Keep in mind that the air filter is protecting your engine from contaminants, and having one that properly fits is important with today’s modern, high-tech engines.  

Replacing your engine air filter can help prolong the life of your engine. You’ll both breathe better.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
www.mattdavisauto.com

Why is My Brake Pedal Hard to Push?

When you push on your brake pedal, you should find your vehicle easy to stop.  But at some point, you might notice stopping takes much more pressure on the pedal than it used to.  When it gets to that point it becomes a safety issue, and you should bring your vehicle in so we can track down what’s not working correctly.

Brake pedals that are stiff mean there’s something wrong with one or more components of your entire brake system.  For example, it could be moisture has contaminated your brake fluid, making it harder to push the pedal down.

Many vehicles use hydraulics to amplify your pedal pressure to a force strong enough to stop your vehicle.  Certain problems can develop with your hydraulics, such as a faulty master cylinder, a kink in one of your brake lines, or a failed proportioning valve which regulates pressure to your rear brakes. Vacuum leaks can also make your brake pedal hard to push. Another cause could be a problem with your vehicle’s brake booster or its check valve.

Because your vehicle’s braking system is made up of many different components, one of our technicians will look at several different possible causes in yours.  Your vehicle may not have enough brake fluid in it, so they’ll check the level.  A visual inspection of your hoses, brake lines and vacuum line to the brake booster may turn up the root cause of your issues.   

Because there are many different causes of a hard-to-push brake pedal, solutions may involve one or more different steps.  Keep in mind this is one problem that needs to be fixed for you to drive safely.  That’s why it’s important to have a professional track down the issue, or issues, and take care of the problem(s) so you can be back on the road, safely going and stopping.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
www.mattdavisauto.com