AUTONET TV

Weather Station on Wheels (Vehicle Sensor Maintenance)

You probably never thought about it, but your vehicle is like a rolling weather station.  It can check the outside temperature, let you know when the roads are slippery and help you deal with rain. And how it does all those things is pretty cool.

First, just like any weather station, a vehicle has sensors that measure the driving and weather conditions you find yourself in.  Some of those sensors can control computerized systems in your vehicle to react to the weather.  It depends on whether you have a 2-wheel, 4-wheel or all-wheel drive vehicle how those sensors will respond.

Let's start with temperature.  Most vehicles now have a thermometer that measures the temperature outside.  It's usually in the front, and likely will tell you on the instrument panel what the outside temperature measures.  But a temperature sensor will also tell your vehicle's computers to turn on or off certain systems like the heating or air conditioning.  If your ambient temperature sensor isn't working right, some symptoms are a malfunctioning automatic A/C or a temperature display that is way different than the app on your phone says it should be.

Your vehicle will also have sensors that measure your speed at each wheel.  They work with an onboard computer to measure slippage in any of the wheels so traction control and antilock brakes work correctly in case of slick roads.

Your vehicle can measure something called longitudinal and latitudinal acceleration, and it uses a yaw sensor to do it.  That helps it determine if you might be in an oversteering or understeering situation.  It's important because it works with your vehicle's brakes to apply stopping power to keep you in control.

A steering wheel sensor tells the vehicle's computers what the driver is doing with the wheel.  It also can work with those wheel sensors to measure how slippery the roads are, whether it be due to a wet (rain) or granular (gravel or sand) surface.  By sending different torque or braking to each wheel, it helps the driver maintain control.

More and more vehicles now have a rain sensor that can turn on the wipers automatically when they measure precipitation on the windshield.

So, you're driving your own weather station, and making sure all this data is coming in properly depends on how each component is working.  Regular service and maintenance on these systems is important to make sure they can do their job. Your rolling weather station can't predict the weather, but it can sure help you deal with it, so help it do its job right.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

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.

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com

When "Oh, no!" Turns Into, "All right!"

Things we don't expect happen to our vehicles. And let's face, no one really wants to spend money on an unexpected repair. But if you are putting off going to your vehicle repair facility because you're dreading bad news, you might just be putting off some good news.

There was one minivan driver who'd had the same van for years and never had a problem with the power sliding doors.  Then one day, the electrical switches in the door pillars stopped working.  The key fob would still open them, but the door switches wouldn't do a thing.

Of course, the van driver feared the worst: an electrical problem, a major computer failure, mice chewing up the wires.  So, he put off going into the repair facility for a couple of months.  One day, it was time for his regular oil change and the service advisor asked him if there was anything else going on with the van.  The owner mentioned the door problem but said he didn't want to spend a fortune on it.

He waited for his van, and it wasn't long before the service advisor came out with good news. The doors weren't working because a switch on the overhead console had been turned off.  (It was a safety feature to allow parents to disable them.) The owner had accidentally switched it when he was unloading the van.  It was the first thing the technician had checked. Flip the switch back and all was working as usual.

Another example? A mother was driving a minivan with her two kids inside on a hot day when she felt the front end shaking violently as she drove down the road. Fearing something major had broken in the van (and fearing for the safety of her kids), she pulled into a fast-food restaurant parking lot and started to look underneath to see if it was anything obvious she could see.

She couldn't see any broken parts, but she also didn't feel safe getting back in the van with her kids.  So, she called her local service facility and asked if they could send someone to look at it.  When the technician arrived, he took it for a test drive on the same road on which she'd described having the trouble.  Then he put her van up on the lift.  His conclusion?  Nothing was wrong with her van.  It was the street she was driving on.  Crews repairing it had left the surface full of potholes, and that was causing her rough ride.

Ultimately, what these two drivers feared would be an expensive trip to the shop resulted in each driver getting different news than they had expected.  One learned something new about his vehicle.  The other?  Well, the technician saw that her tires were badly worn and convinced her to get them replaced, perhaps preventing an accident and giving peace of mind for a mom with two kids.

No Fuel-ing! (Fuel Filter Replacement)

Your vehicle has a few filters you might be somewhat familiar with.  There’s the oil filter that removes impurities from your engine’s oil, and a couple of different kinds of air filters that prevent contaminants from getting into the engine and the cabin. But you may not know that your vehicle also has a fuel filter.

The fuel filter keeps contaminants such as particles and other foreign substances from making their way into the engine.  They can result from using lower quality fuel, driving in dirty or stop-and-go conditions, or simply what happens after many weeks and months of travel. 

At some point, your fuel filter will start to get clogged up and won’t let the fuel get to your engine easily.  You might notice some signs of that: your engine doesn’t have the power it used to, it may misfire when you accelerate, it may be harder to start, or it may stall while you’re driving.  You may notice your vehicle vibrating a lot when you’re idling.  

If you notice any of those symptoms in your vehicle, you should bring it in for us to take a look.  We can run diagnostics such as a fuel pressure test that will let us know if your fuel filter is finished or still has a little more life remaining.

Even better, it’s a good idea to replace the fuel filter BEFORE you start seeing symptoms.  Each vehicle’s manufacturer recommends an interval at which you should change your fuel filter.  Older vehicles may recommend it be changed fairly frequently, such as every 30,000 miles/50,000 km.  Newer vehicles from different manufacturers have much longer intervals, and that’s something we can check so you can stay on schedule with regular maintenance.  

Make sure your fuel filter is doing its job so your engine can keep doing its job. 

Joe D'Auria's Auto
1401 BRACE RD
CHERRY HILL, NJ 08034
(56.427.9422
http://www.autorepaircherryhill.com