AUTONET TV

Smart Garner Drivers Protect Against Overheating

Engines get hot when they run. This heat can build up and damage vital engine parts, so engines need a cooling system to keep them running. Cooling system failure is the most common mechanical failure in vehicles. This is unfortunate, because these failures are usually easy for Garner drivers to prevent.

The radiator is the best-known and most recognizable part of the cooling system. Hoses filled with coolant (also known as antifreeze) connect the radiator to the engine. The coolant draws heat from the engine and then flows to the radiator. Air passing through cooling fans on the radiator cools the coolant. The coolant then cycles back into the engine to start the process over again.

The most critical component of the cooling system, however, is the coolant itself. A mixture of water and coolant/antifreeze helps keep it both from freezing and from boiling away. Either can result in serious engine damage.

Different engines require different types of coolant/antifreeze. The owner's manual will list what kind a vehicle requires. Using the wrong type or mixing different types of coolant/antifreeze may void the warranty on the cooling system and may damage it as well.

Insufficient coolant can lead to engine failure. Coolant levels need to be checked regularly and topped off as necessary. If coolant levels drop quickly or consistently, the cooling system should be inspected for leaks. Coolant/antifreeze contains additives that protect the radiator and other coolant components from rust, scale and corrosion. Over time, these additives are depleted, so it is necessary for Garner drivers to replace coolant at specified intervals. Changing coolant should be part of routine preventive maintenance for any vehicle.

This service is often ignored, though, since old coolant still cools the engine. Vehicle owners don't realize there is a problem until the system fails. They are left with major repairs and possibly a damaged engine, which could have been prevented with a cooling system service at Matt Davis Auto in Garner.

If your vehicle sends a warning message to check its coolant or if the temperature gauge is reading in the red or hot zone, then the cooling system needs serviced. This service is critical and should not be put off since the potential for damage is high.

In an emergency situation, water or antifreeze can be added to your vehicle so that it can be driven to a service center for proper car care. For this reason, your owner's manual contains instructions for how to top off insufficient coolant – allow 45 minutes for the engine to cool before attempting to add coolant or water. However, the fluid should be added to the coolant overflow bottle, not to the radiator itself. Removing the radiator pressure cap can result in severe burns.

Topping off in an emergency, however, does not fix the problem. The vehicle should immediately be taken to Matt Davis Auto in Garner where they can inspect the cooling system, repair any leaks and clean it if necessary. They can identify what caused the emergency situation in first place and ensure it doesn't happen again.

Regular maintenance of a vehicle's cooling system is just good auto advice for Garner drivers. Cooling system service is relatively inexpensive and doesn't take long at Matt Davis Auto. Lack of it, however, can put a vehicle in the scrap heap.

Talk to our service advisor at Matt Davis Auto for more information. 

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

Let’s Clear the Air

In an effort to keep the air we breathe clean, modern vehicles with internal combustion engines are designed to reduce the emissions by recirculating exhaust gas into the engine.  It has a part that controls how much of that gas to put back into the engine, and that’s known as the EGR valve.

EGR stands for exhaust gas recirculation, and when your fails or get blocked up, you might notice a few of telltale signs.  You may find your acceleration is slow or uneven, your vehicle stalls or idles roughly, you notice a knock or ping when you step on the gas or your fuel economy isn’t what it used to be.  

If your vehicle has those symptoms, bring it in so a technician can track down what is causing the problems. It’s important to have your vehicle checked because a bad EGR valve can lead to expensive engine damage if the combustion temperatures get too high.  An overheated engine can cause your head gasket to fail.  Plus, you may damage your vehicle’s valves and cylinders.  A bad EGR valve can also result in damage to your catalytic converter, another expensive item to replace. 

Our technicians can scan your vehicle’s computers for codes, test the EGR valve and inspect its wiring and vacuum lines.  If they determine it’s the EGR valve, they’ll install a new one with a new gasket, reconnect the electrical plugs and vacuum hoses, then check how the system is working by taking your vehicle for a test drive. 

When you’re back on the road, you will know that your emissions will be cleaner, your fuel economy better and your engine should last longer.  

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

Chilly Warning (Diagnosing a Noise in Cold Vehicle)

When the weather gets colder, sometimes the noises your vehicle makes will change.  For example, you may notice a whining sound when you get going in the morning.  It may go away when the vehicle warms up, but it's best not to ignore that sound because it could be a warning of worse things to come.

Colder temperatures cause different components to behave differently.  Let's take a look at a few of them.  First, the fluids in your vehicle.  Cold temperatures can make them behave a little differently, such as engine oil, transmission fluid and power steering fluid. Those characteristics could change if the fluids are older and full of contaminants.

Belts also can create a whining noise when cold.  Since they turn pulleys that move other things, several factors can create issues.  Increased friction can change proper tensions on belts.  Plus, belts change as they age and may crack, get loose or develop a glazed surface. Belts and pulleys also must be aligned properly to work the way they're designed to.

As you can imagine, it's easier for a technician to diagnose a noise if the vehicle is making it.  And if a vehicle only makes a noise when it's cold, that sound may be gone by the time the vehicle makes it to the repair facility.  That means a driver may have to consider dropping off the vehicle the night before so the technician can be the first to start it the following morning.  Most service facilities can accommodate that with either a drop-off box or other arrangement.  Heed your vehicle's warning when you start to hear unusual noises.  That's a cool idea you should be able to easily warm up to.

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

Motor Oil—The Synthetic Advantage (Synthetic oil vs Conventional)

You’ve probably already heard that regular oil changes are extremely important for the health of your vehicle’s engine. That’s sound advice.  But what you might not know is when it comes to motor oil, the real thing may not be the best thing for your engine.

There are different types of motor oil:
•    Conventional oil, extracted from the ground and refined.
•    Synthetic oil, manufactured from high-quality base oils and artificially-made chemical compounds.
•    Synthetic oil blend, a mixture of conventional and synthetic oils.

The first thing you need to know is that most new engines require synthetic oil.  If synthetic oil is recommended for your car – you MUST use it.

For the rest, there are many advantages to using synthetic oil over conventional oil. 

•    Synthetic oil provides better protection for your engine while helping it to perform better.
•    Conventional oil breaks down over time, while synthetic oil lasts longer.
•    Synthetics can stand higher temperature extremes, both heat, and cold.

Synthetic oil can be a better choice if you live in an extremely hot or cold climate or put a lot of strain on your engine by towing or carrying heavy loads.  It also may be good for older engines that sometimes have a tendency to develop sludge. 

Synthetic oil is a more expensive option, but you likely won’t have to have your oil changed as often.  Some synthetics are recommended to last 10,000-15,000 miles/16,000-24,000 km between changes. 

You might also consider a synthetic blend that gives you some of the advantages of synthetic oil at a lower cost. Have a talk with your service adviser about recommendations for what will best suit your vehicle and driving habits. 

It’s interesting to note that in recent years, more than one out of two vehicle owners are opting for synthetic oil or a synthetic blend when they get their oil changed. Sounds like they’re on to something. In the long run, if you have fewer oil changes with synthetics, you’ll use less oil, a bonus for our environment. 

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