AUTONET TV

Your Vehicle's Hissy Fit (AC System)

When you hear hissing sounds coming from your vehicle, you might start thinking the worst.   One type of hissing coming from around your air conditioner may be a normal sound, or it could be a sign of serious trouble.

First - the normal sound.  When you turn off your vehicle, the refrigerant goes from its high-pressure side to the low-pressure side. Some of those noises are normal.  But when it hisses all the time, that's another story.

One cause could be that the refrigerant is leaking.  Air conditioners are fairly complex systems that involve various pumps, hoses, valves and motors.  When your air conditioner is cooling, the refrigerant changes from a gas to a liquid and back.  That refrigerant is under pressure, and there are many places it can leak from. 

A hissing sound can also be a failed valve in your air conditioner's compressor.  It is what controls the refrigerant's pressurization.  It's important to have this fixed fairly quickly after it develops a problem because when it isn't, that can lead to more extensive—and expensive—repairs.

If you hear screeching coming from your air conditioner at the same time you hear hissing, your compressor may be on its last legs. It could also be a defective clutch. 

Any time you hear a noise you haven't routinely heard before, bring your vehicle to us so a technician can check the various components and properly repair the problems.  Air conditioning systems are complex and are best handled by a professional with the right tools and equipment.  When your AC has a hissy fit, let us cool it off and you at the same time.  

High-Tech Auto and Truck Center
4007 Westfax Drive
Chantilly, VA 20151
7039686648
high-tech-auto.com

Something to Latch On To (Hood Latch Safety)

The other day, a driver was trying to open his vehicle's hood so he could add some windshield washer fluid.  But when he pulled the hood release inside the car, nothing happened. 

Usually, opening any hood is a 2-step process.  You pull the hood release (which is usually a handle under the dashboard to the left of the steering column) and listen for the hood to pop up slightly. (It doesn't open all the way because it has a safety latch to prevent you from accidentally opening it up while you're driving.) Then, you get out and find the latch, usually through the grille near the hood.  There's a little handle on it which you push, slide or pull (there are a few different types) at which point the hood can be opened up all the way. 

But in this driver's case, the hood would not release at all when he pulled the handle inside.  Not knowing what to do, he called his service advisor, who told him to bring it over.  The reason? A hood with a broken latch could be a safety hazard since it is possible it's not securely closed. And in this condition, it's possible for the hood to suddenly release while you are driving, obscuring your view of the road. 

Latch issues can be caused by many things, perhaps a broken cable between the hood release and the latch.  It's possible that cable just detached or frayed after being opened so many times.  If a hood release cable isn't kept lubricated, it can corrode and just lock up.

In this driver's case, the cable had corroded and broken, so it had to be replaced.  Unfortunately, many times you won't know you have a problem with your hood latch until one time you pull it and it breaks without warning.  When your vehicle is in for routine maintenance like an oil change, a technician will often keep an eye out for signs that your hood latch needs attention so you don't get "locked" out of your engine compartment.

High-Tech Auto and Truck Center
4007 Westfax Drive
Chantilly, VA 20151
7039686648
high-tech-auto.com

Give it the Boot (Ball Joint Boot Replacement)

Your vehicle may be wearing boots right now and you might not even know it.  They're called ball joint boots.  They're actually protective, flexible things that protect parts of your suspension (called ball joints) from all the hazards the road can fling at them.  If one of those ball joint boots fails and you don't get it replaced, the ball joints themselves could wind up failing, a repair that can be even more expensive. 

Ball joint boots not only keep things like rocks, salt, water and dirt out of your ball joints, they also help the ball joints keep their lubrication inside and working properly.  To do that, the boots have to be made of a flexible material, sometimes rubber, sometimes a synthetic.  They do take a beating, exposed to temperature extremes and debris, and eventually they can tear or crack just because of their age.  Unless someone is keeping an eye on your ball joint boots, you may never know there's a problem.  That's why when you regularly take your vehicle in to a repair facility for other things like oil changes and routine maintenance, a technician will inspect the ball joint boots to make sure they're still in top shape.

If they're not, your service advisor will let you know. Take care of that soon and you may avoid having to replace the ball joints themselves or other suspension parts which may be much more expensive.  Often it's best to replace boots on both sides of the vehicle since they frequently wear at about the same rate. 

If you want to make a fashion statement, some ball joint boots come in various colors other than run-of-the-mill black.  And some aftermarket boots are made of a more durable material than the original equipment that came on your vehicle.  Some drivers get a real "kick" out of flashy ball joint boots!

High-Tech Auto and Truck Center
4007 Westfax Drive
Chantilly, VA 20151
7039686648
high-tech-auto.com

Will Proper Auto Maintenance at High-Tech Auto and Truck Center Really Save Gas?

Have you ever thought about all the little things we do to keep our lives running smoothly - like vacuuming? It makes a room feel fresher and more comfortable. We may not consider that we're also prolonging the life of the carpet by keeping it clean. But Chantilly drivers don't always extend those good habits into the garage. Our vehicles need regular maintenance just like our rugs need vacuuming. We may not notice a difference in the feel or appearance of the vehicle, but just as cleaning a carpet carries the hidden reward of prolonging its life, maintaining our vehicles incurs a hidden reward that becomes noticeable at Chantilly gas stations.

When it comes to reduced fuel economy, there are two culprits: increased friction and inefficient fuel combustion. That means that anything Chantilly drivers can do to decrease friction and increase the efficiency of their engines will translate to savings on fuel. Friction increases the amount of energy it takes to move something. So if we can reduce friction, we can decrease the amount of fuel it takes to run our vehicles. Engine oil is usually at the heart of friction problems in an engine. Too little oil means parts are not getting lubricated, which increases friction; dirty oil doesn't lubricate as well as clean oil. So one secret to good fuel efficiency is to stay on top of oil changes. Don't skip them and don't procrastinate. The same auto advice applies to transmission fluid. Keep it full and keep it clean, and your vehicle will run with less friction and better fuel economy.

If your tires are underinflated, it increases the friction between the tire and the road. Again, there is increased drag, and it takes more fuel to move your vehicle. Chantilly drivers should check their tire pressure every month and keep their tires properly inflated.

Alignment and brake problems can also increase friction. Besides saving fuel, keeping these systems in good repair has the added benefit of saving you on tires and brake pads. These items wear out more quickly when the alignment is off or when the brake system isn't in good working order. Talk to your friendly and knowledgeable service advisor at High-Tech Auto and Truck Center.

The second culprit that stealthily steals our gas is inefficient fuel combustion. It depends on the engine getting the right amount of clean fuel to the right place with the right pressure at the right time in the right pattern. The key to peak engine performance is to keep the fuel system clean. Varnish and gum can build up in a fuel system, which will interfere with the fuel injectors. The fuel injectors are responsible for all those “rights” we spoke of. If they're dirty, amounts, timing, pressure and spray patterns can all get out of whack. The result? Reduced fuel efficiency. A fuel system cleaning at High-Tech Auto and Truck Center in Chantilly can get your injectors back on track, improving performance and efficiency.

There are a few other maintenance items that can improve your fuel economy. One is to replace your PCV valve when it gets sticky. This valve allows unburned fuel in your engine exhaust to return to the engine. Chantilly drivers can also replace worn spark plugs and dirty fuel filters. A well-maintained vehicle will require fewer repairs and save at Chantilly gas pumps.

High-Tech Auto and Truck Center
4007 Westfax Drive
Chantilly, VA 20151
7039686648
high-tech-auto.com

Automotive Tips from High-Tech Auto and Truck Center: Air Conditioning Inspection

Most auto manufacturers recommend an interval for an air conditioning system inspection. The inspection uncovers leaks, worn hoses and assesses the condition of the other components.

Environmental laws in some around Chantilly require leaks to be repaired before refrigerant can be added. Also some parts manufacturers require other components to be replaced along with certain failed parts in order to maintain the new part warranty. This is because a given failure may be the result of another worn or damaged part that will, if not replaced, prematurely damage the new component.

High-Tech Auto and Truck Center in Chantilly is fully equipped to restore your flow of cool air.


High-Tech Auto and Truck Center
4007 Westfax Drive
Chantilly, VA 20151
7039686648
high-tech-auto.com