AUTONET TV

Archive for May 2019

Fuel Injection Keeps Getting Better for Garner Motorists

Posted May 26, 2019 11:36 AM

Garner residents know that engines burn fuel to operate. Fuel is pumped from your fuel tank to your engine where it is squirted—or injected—into your engine's cylinders. This is the function of the fuel injectors.

There are two ways to inject fuel into an engine. Fuel needs air to burn, so in the first method, fuel is injected into a port and allowed to mix with airand before it is drawn into the cylinders. In the second method, fuel is injected directly into the cylinders and mixes with air after it enters the engine.

Direct injection engines burn fuel more efficiently than conventional engines. Some models can deliver the power of a V8 with the economy of a V6.

For example, in one family of engines, the conventional version (a V6) delivers about 250 horsepower. The direct injection version delivers over 300 horsepower and gets about the same . The turbocharged version delivers 350 horsepower.

Why the big difference in power? Direct injection systems allow fuel to be squirted into the engine at hundreds of times the pressure of a conventional engine. This atomizes the fuel better (breaks it down into tinier droplets), which means more of it gets burned, which translates to more power for your engine. It also results in cleaner emissions and improved fuel economy.

Fuel injectors are precision instruments. They have to deliver the right amount of fuel at exactly the time the engine needs it. They are also engineered to inject fuel with a specific spray pattern. This spray pattern allows for maximum fuel efficiency and proper atomization.

Direct injection engines require a much higher degree of precision than conventional engines. For this reason, they are equipped with more sophisticated computers.

When fuel injectors get dirty, their precision drops off. The spray pattern won't be precise, and the timing of fuel delivery may be off. This decreases fuel efficiency and fuel economy for Garner drivers as well as delivering less power to the engine.

Fuel injectors are not cheap to replace. Direct injection fuel injectors are even more expensive. And we're talking a mortgage payment to buy a set of new fuel injectors for a diesel engine.

So keeping your fuel injectors clean is just good auto advice for Garner residents. The best way to do this is to change your air and fuel filters regularly and practice other habits of good vehicle care and preventive maintenance at Matt Davis Auto in Garner. Cleaning additives in your fuel can also help.

If you do end up with gum or varnish in your fuel system, you'll need a professional fuel system cleaning. This will clean out your whole system, including the injectors. The good news is that with proper maintenance, your fuel injectors will last for a long time.

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



Sniffing Out a Problem

Posted May 19, 2019 10:39 AM

Your parents probably taught you to have common sense. When it comes to your vehicle, common scents can also come in handy. Different smells may tell you about some conditions in your vehicle that need attention.

For example, you know what rotten eggs smell like.  If you smell them around your vehicle, it means sulfur can't be far away. Here's a surprising fact: Gasoline has a little sulfur in it.  There's a device in your exhaust system that's supposed to convert it to something that doesn't pollute the atmosphere. That device is a catalytic converter.  If you are smelling rotten eggs, maybe your catalytic converter is wearing out.  But it could also be a problem with your fuel injectors.  Either way, something's rotten that should be repaired.

Ever smell something sweet around your vehicle, maybe a little like pancake syrup? If you sniff out a little sweetness just when your engine is warming up or after you shut off your engine, you might be smelling some coolant (anti-freeze).  If it's leaking, then you may be getting a whiff of ethylene glycol, one of the coolant's components.  If the odor is strong inside the car, it could be a leaky heater core. This is important to get checked out because a leak in your vehicle's cooling system can eventually cause expensive damage.

How about that distinctive smell of gasoline? You could have a leak in your gas tank, a hose that vents your gas tank or a leak in a fuel injector line.  A gasoline leak needs to be tracked down since it could catch fire.  It can also be bad for your health if you breathe it in all the time.

When you step hard on the brakes, ever smell something like a rug's in fire? That could mean you've just overheated your brake pads.  If you detect that smell just driving around town, one of the brake calipers could be stuck.  To figure out which wheel has the problem, get out of your vehicle and smell each wheel.  It will likely be obvious where the problem is.

Here's one last smell.  Ever had your oil changed and right after you picked up your vehicle it smells like something's burning around the engine? That's because sometimes a little oil leaks onto the metal when the filter is changed or the oil is poured in.  It's a useful smell to know.  Because of you smell burning oil and you haven't had your oil changed recently, that could mean you have a leak in your engine.  It could be a gasket or a seal, but it also could mean the start of more serious issues. 

All of these things are signals that you should discuss with your service advisor to get them checked out.

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



Fuel Saving Tip: Fuel System Cleaning Near Garner, NC

Posted May 12, 2019 10:22 AM



A lot of fuel is wasted in the Garner area by dirty fuel delivery systems in vehicles.

Let's start at the tank. The gas tank gathers dirt, rust and sediment over the years. That's why there's a fuel filter to clean the fuel after it leaves the tank. A dirty filter will rob the engine of the clean gas it needs to run efficiently.

The fuel intake components get coated with gum and varnish over time. This results in fuel being delivered inefficiently and some of that gunk getting into the engine. A fuel system service at Matt Davis Auto will leave your intake components as clean as a whistle.

The big fuel thief is dirty fuel injectors. They deliver fuel to the engine at a specified pressure and in a particular spray pattern. When they're clogged, the fuel doesn't get atomized the way it's supposed to and doesn't get burned as efficiently.

See your owner's manual or ask your Garner service advisor at Matt Davis Auto when a fuel system cleaning is recommended.

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



Wipe Out! New Wiper Blades for Garner Drivers

Posted May 5, 2019 7:55 AM

When people in Garner talk about vehicle safety, they think of tires and brakes. But do we think about our windshields? Isn't the ability to see a prime safety factor when it comes to driving around NC? Yet we often don't even notice our windshields until we can't see through them or our wiper blades fail.

It's estimated that around 46 million people are driving with wipers that won't keep their windshields clear during a storm — that's 46 million people with impaired vision during a storm. For safety's sake, Garner drivers need to change the way they think about wiper blades. Most of us, 78% in fact, only change our wiper blades after they fail. In other words, we don't get new ones until the old ones become a safety hazard. Instead, we need to make wiper blades part of our preventive maintenance routine.

Wiper blades should be changed twice a year, in the spring and in the fall. In NC areas that experience harsh winter weather, special blades are available that prevent ice and snow from collecting on the wiper. Ask your friendly and knowledgeable service advisor at Matt Davis Auto about wiper blades that repel ice and snow.

No matter what blades you use on your vehicle in the winter, don't expect them to clear the ice and snow from your windshield after your vehicle has been parked for a while. Using your wipers will shred your blades and may even damage your wiper motor. And don't drive on Garner roads with a frosted windshield. That's a serious safety hazard. It can cause accidents, and you could be held liable.

Wiper blades are subjected to harsh conditions in NC. They're out in the Garner sun and in the cold. Over time, they become hard and brittle and lose their flexibility. Then they start to tear. Without flexibility, wipers just can't clear a windshield of water or snow. And torn wipers can actually scratch your windshield. Then the entire windshield has to be replaced — along with the wiper blades. It's a prime example of how preventive maintenance could have saved you repair bill.

Garner drivers can purchase new wiper blades at Matt Davis Auto or at any Garner auto parts store. They cost about the same. But at Matt Davis Auto we'll also throw in the installation.

Once you have good wipers installed, don't forget to top off your windshield washer fluid. If you take your vehicle in for a full-service oil change at Matt Davis Auto in Garner, your washer fluid will get topped off then. But it's good auto advice to purchase a jug of washer fluid to keep at home — just in case. And pack it in the car when you go on long trips.

While we're on the subject, Matt Davis Auto advises Garner drivers to always fill their washer fluid reservoir with windshield washer fluid. Don't ever use water. Water can freeze in the reservoir, which can damage it. It can also freeze onto your windshield. Besides, plain water just can't get a windshield clean. Think about it. Do you use plain water to clean your bathroom mirrors? And a bathroom mirror doesn't get exposed to anything near the gunk that can end up on your windshield. Windshield washer fluid was designed to do one thing — to clean windshields. Let it do its job.

A clean windshield is not just good vehicle care for Garner drivers — it's also a safety feature. Let's keep it that way.

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

 



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  • Matt Davis Auto - Garner
    875 US Highway 70 W
    Garner, NC 27529
919-398-6171
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    13401 US 70 Business Hwy West
    Clayton, NC 27520
919-398-6171