AUTONET TV

Full of Hot Air (Air Conditioning)

In warm weather, you want to be in a cool vehicle. When we're talking cool, we don't mean stylish or trendy, but cool as in not sweltering inside.  And if your vehicle's air conditioner stops working correctly, it seems to always break at the worst time—during a heat wave. 

Automotive air conditioning problems fail for a number of reasons:

• Blower motor not working.  No air comes through the vents, even though the rest of the system could be working fine.
• Refrigerant leak. When the gas that cools the air off escapes from the air conditioning system, your air conditioner can no longer cool off the outside air
• Condenser and compressor. These are parts of your AC system that compress and expand a refrigerant gas to cool off the outside air. They are fairly complex.

When you bring your vehicle into our service center, we'll run a series of diagnostic tests to figure out what isn't working correctly.  The air conditioning system has a lot of parts. There are electrical and mechanical components plus a series of hoses and tubes that all can wear out over time.  Any one of these can fail.

A lot of drivers think they have a "Freon leak" and believe that if they get their AC system recharged with the refrigerant, everything will be fine.  But AC systems are so complex, it usually takes a trained technician to accurately figure out where the problems are.

Sometimes the solution is simple.  If your blower motor wears out or there's a fuse that has blown, the technician can replace the bad parts and you'll quickly be back to enjoying your rolling refrigerator. But when compressors or condensers go bad, those are much more involved and expensive to fix.

For instance, electrical problems can sometimes lead to acid to build up and corrode other parts of your AC system.  Sometimes that causes so much damage, your whole air conditioning system has to be replaced. That's why it's always a good idea to have your AC regularly maintained.  Our technicians can find a problem early and prevent more expensive repairs down the road. That's really the cool way to go.

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

To Fix or Not To Fix (Tire Repair)

You know that sinking feeling when you realize one of your tires has a problem.  It may be making an odd noise or behaving oddly when you're driving.  You may hit a pothole or curb and one suddenly goes flat.  Or you may head back to your vehicle and discover it has one tire deflated without a clue of what must have happened to it.

With a lot of different tires hitting the streets these days, the issue of whether to have a tire repaired or replaced can be tricky, and we strongly recommend you have a trained technician help you make that decision. 

One of the most common causes of flat tires is picking up a screw or nail in the tread area.  Many of those can be patched and plugged if the puncture isn't more than ¼ inch/6 mm in diameter. Most tires can handle two of this type of repair, but any more and you should buy a new tire. 

If there's a puncture or bulge in the sidewall or shoulder, the rule of thumb is it's not repairable.  The sidewall doesn't have the reinforcements that the tread area does.  In fact, any puncture that's more than a ½ inch/12 mm away from the edge of the tread should not be fixed. 

Many newer vehicles have no spare tires (to save weight and fuel) and instead have a type of tire called "run-flat."  Sometimes, the only way you know they're deflated is when the tire pressure monitor alerts the driver.  Driving on them more than 50 miles/80km can render them un-repairable.  They may be fixable if you pulled off to the side of the road before driving on them too long. Our technicians can evaluate whether they can be driven further or should be replaced.

Other vehicles with no spare include a can of tire sealant and a compressor.  If you use it, tire experts say to have the tire professionally repaired as soon as possible.

If you have had a flat tire, try not to drive on it unless it's necessary to get your vehicle away from a dangerous situation.  Our technicians can evaluate any tire you may be having problems with and recommend whether repair or replacement is the best option. Your safety is riding on your tires.  

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

Singing a Different Tune (Up) (Tune Ups)

Engines required a lot more maintenance in earlier times.  You'd have to have your spark plugs, wires, rotors, caps, distributor points, fuel and air filters changed periodically.  There were mechanical adjustments of a vehicle's timing, dwell, spark gap and idle mixture, too. Unless you like to tinker with old cars, a lot of those terms won't mean much to you. 

That service was called a "tune up" back then, and you can see why.  But now, computers have reduced the number of maintenance items, and a tune up is a whole lot different than it used to be.  In fact, in some vehicle service facilities, that term is also a thing of the past. 

A tune up of today would more accurately be called simply periodic maintenance. Now, most vehicles still have spark plugs and wires, fuel filters, air filters and PCV valves, and they should be inspected tested and/or replaced at regular intervals.  Your vehicle's manufacturer has made recommendations on how often that should be. But it depends on your driving habits. Do you regularly tow a trailer? Do you drive on dusty roads often? Are you driving mostly stop and go in the city?  Depending on your answers, to those maintenance intervals might have to be more frequent.

Your service advisor will likely remind you about those "must check" items such as spark plugs and wires, air filter and oxygen sensor.  And now that the old-fashioned tune ups don't require you to take your vehicle in for maintenance as often, you can get the same benefit from scheduled oil changes or tire rotations.  When your vehicle is in for those, a technician can keep an eye on your other systems (fuel, emissions, ignition) to make sure they are operating correctly.

One thing to remember.  When you take your vehicle in for regular service or a specific issue, don't ever hesitate to ask you service advisor to explain what's being done and why.  Hey, "In Sync" may have been a boy band of an earlier era, but it's always good for you and your service advisor to be "in sync" when it comes to what maintenance is good for your vehicle.

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

Matt Davis Auto Helps You Decipher the Menu Board: Part 2

NC service centers have a menu board that lists the services they provide. Some Garner drivers may not be familiar with all of the items on the board so here is a quick description of some of the typical services that might be listed.

Matt Davis Auto fuel system cleaning: Over time, the vehicle fuel system gets gum and varnish built up. A fuel system cleaning gets rid of that and cleans out the fuel injectors. Saves gas, by the way.

Matt Davis Auto headlamp replacement: Halogen and standard headlamps gradually fade. It's usually good to change them every year or so.

Matt Davis Auto inspections: Garner drivers get inspections for many reasons. Maybe they're going on a trip or just want to make sure their vehicle's ready for a NC summer or winter. Maybe they just bought a used vehicle and want to give it the once over. An inspection may reveal some things that are broken or are getting close to having a problem.

Matt Davis Auto oil change: There are several options: Some Garner centers offer just an oil change and new filter as an option. Most will also check and top off all of your other fluids and do a quick visual inspection with a full service oil change. In my way of thinking, the full service option is best because it makes sure you have adequate fluids and may uncover an emerging problem. There may also be options for higher mileage fluids or an upgrade to synthetic oil.

Matt Davis Auto PCV valve replacement in Garner: PCV stands for Positive Crankcase Ventilation valve. It's a little part that releases pressure from the engine. It can get gummed up and that can lead to engine damage. It just needs to be changed now and then.

Matt Davis Auto power steering service: Often overlooked. Your friendly and knowledgeable Matt Davis Auto technician will evacuate the old fluid, clean out the system and replace it with clean fluid. Keeps the vehicle system running well for a long time.

Matt Davis Auto serpentine belt service: That's the belt that powers the vehicle engine's accessories like the alternator, air conditioner, power steering and brakes. You'll want to replace the serpentine belt before it breaks, because that'll shut you down.

Matt Davis Auto shocks and struts: This starts with an inspection of the suspension components. Shocks last a long time and wear out slowly, so many Garner drivers don't notice when it's time to change them. If they're worn or leaking, they need to be replaced.

Matt Davis Auto transmission service: This involves removing the transmission fluid and replacing it with clean fluid. It's like an oil change for your transmission.

Matt Davis Auto tire rotation and wheel balancing: The tires are rotated from front to back using the recommended rotation pattern. This helps tires wear more evenly. Wheels need to be balanced from time to time to keep them turning without any wobble or bounce. Helps the ride and saves tire wear.

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