AUTONET TV

Unlock the Secret (Malfunctioning Door Lock Actuator)

What a convenience power door locks are on a vehicle.  The latest don't even require you to push the button on the key fob; all you have to do is have it with you.  But sometimes there's a component of power door locks that can fail, especially when they are used several times each day.  Those are called the door lock actuators.

The actuator is an electric part that works with others (like motors and gears) to lock and unlock doors.  You can hear them work, sometimes with the little whirr of the gear or the quiet clunk of the lock finishing its cycle.  And it's good to pay attention to that sound because if it starts to sound different, it could be a signal that your lock is on the brink of failing. Another sign of a failing power door lock actuator is they start working intermittently or quickly and erratically.  The driver's door is often the first to start acting up since it's the one that usually gets the most use.

When you start to notice these signs, consider a visit to your service facility to get your vehicle checked out.  If you wait too long, you may find yourself getting locked out of your vehicle. Many vehicles do have mechanical keys available as a failsafe so you are at least able to get inside.  Some of them are hidden inside the key fob and you should know how to access them.  Check with your owner's manual or ask your service advisor.

It's extremely inconvenient to have to unlock your vehicle with the mechanical key, then get inside and unlock the other doors. It's even more inconvenient if you have passengers in the rear seats.  And that doesn't even count having to go through the same thing to lock the doors when you arrive at your destination.

There are many things that can cause power door locks to malfunction, but if it turns out to be a power lock actuator, the most common remedy is to replace it.  Some are easier for technicians to reach than others, depending on your vehicle's design.  But once your locks are working again, you might think you've found the "key" to happiness!

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com

Steer Clear of Power Steering Problems (Power Steering Maintenance)

We usually take our vehicle's easy steering for granted until something goes wrong.  Power steering is what makes it almost effortless to turn the steering wheel, aiming your vehicle in the direction you want to go. Without the assistance of power from the engine, steering would be a laborious process, so you want to make sure the system is working well.

Power steering systems are usually one of two types, hydraulic and electric.  The hydraulic type uses a pump that is driven by either a belt or an electric motor.  This system uses hydraulic fluid to create pressure that gives your steering the power assist.  Since that pump is always working, time and distance traveled eventually take their toll, and these systems need to be periodically inspected.  Also, while that hydraulic fluid can last for years, it should be replaced periodically as it degrades over time. Your vehicle's owner's manual contains the manufacturer's recommendations.

A technician can check for leaks in the hoses, pump housing or reservoir.  Also, the belts should be inspected and so should the pump, as these can fail.  Signs of a failing pump are a groaning noise when you turn the steering wheel, stiff steering, squealing noises when you first start your car and puddles of a reddish-brown fluid under your vehicle. 

The other type is called EPS, or electric power steering, which is becoming more commonly used in the latest vehicles.  It only delivers power assist when you need it and has an electric motor that supplies that steering help.  It's more efficient, accurate, compact and clean. And because it has a lot fewer components, it's easier to maintain. 

If you have electric power steering, you may notice sometimes it's hard to turn the wheel or your Check Engine light comes on.  Sometimes the power assist motor fails or there can be problems with electrical connections.  Any time you have symptoms, it's important for your safety and that of drivers around you that you have a technician check them out.

Properly working brakes are essential for the safe operation of any vehicle.  Stop! And make sure yours are working properly.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com

Catching Trouble Early

Your vehicle depends on wheel bearings.  Sitting between the wheel’s hub and axle, they allow your wheels to spin smoothly, bear the vehicle’s weight and work in harmony to stay aligned with other parts.  

Wheel bearings can fail in several ways, and they may send the driver some pretty clear clues.  Sometimes they make strange noises, or you may feel vibrations instead of the usual smooth ride. The most common signs are grinding or humming noises, uneven tire wear and steering vibrations.

Wheel bearings can fail when they are contaminated with water, road salt or dirt that slips in through a broken seal that’s designed to keep those things out.  If lubrication gets too old or overheats, it can create friction and heat that will cause the bearing to fail.  If you’ve hit some hard potholes or curbs, that can also damage a wheel bearing.

Unfortunately, wheel bearings can’t be fixed; they have to be replaced.

Once a wheel bearing is worn, replacement is the only fix—bearings cannot be repaired. When you bring your vehicle in, a technician will give it a road test and listen for noises on turns.  If your bearing needs replacing, the technician will use the appropriate part for your vehicle and make sure the axle nut is torqued to factory specifications.

If you can avoid driving in deep water, keep your tires balanced and make sure your suspension and brakes are maintained, you might minimize the chances of damaging a wheel bearing.  

You probably don’t think about your wheel bearings very much, but they are important to good vehicle performance.  When they’re healthy, your wheels will rotate smoothly, handling will be stable and your braking will feel solid and predictable.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com

Thoughtful Gifts for the Winter Driver

You may be one of those romantics who don't like giving (or getting) practical gifts for special occasions.  Just wait until one of those gifts helps you out of a big predicament in cold weather, and you realize that practical gifts can be life savers.

Here are a few things you may give the cold-weather driver in your life—or suggest to someone else to give you!

• A portable air compressor.  If you've ever had a flat and you can't imagine trying to change a tire on a snowy, winter day, this may just get your tire pumped up enough to drive over to the repair facility.  Some are fancy and pricey, some are only a few bucks.  They plug into the cigarette lighter/12v outlet and will take a few minutes to pump up your tire. But it could save you a tow.
• Portable jump starter. These are relatively small power units (they easily fit in a car trunk) that can jump start your vehicle that has a dead battery.  Some even have an air compressor built in.  If you've ever tried to use conventional jumper cables in freezing weather, they can be stiff and hard to manage.  Really handy when there are no other people or vehicles around and you need a jump.
• Flares.  When bad winter weather reduces visibility to dangerously short distances, flares can make the difference between someone seeing you broken down at the side of the road and them ramming into you. Flares put out far more light than nearly every other warning device; just ask law enforcement officers who carry flares in their patrol vehicles. 
• A good tire gauge.  Winter is when temperatures plunge.  When the temperature drops, so does your tire pressure, so it's important to check your air pressure properly and accurately so you don't wind up with one or more deflated (and flat) tires.  The proper time to check pressure is in the morning, before you hit the road and your tires heat up.  Properly inflated tires are important for safe traction, especially during winter.
• Kitty litter.  The lowest-tech gift of all.  Keep a bag in your vehicle and it can provide much needed traction if you get stuck in the snow.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com

Keeping Your Cool (Water Pump Replacement)

No matter what the temperature is outside, it's important for your vehicle's engine to remain cool, calm, and collected.  Well, cool, anyway. If your vehicle has a gasoline engine, it's powered by a bunch of explosions involving spark plugs, pistons, gasoline, and air.  And the by-product of all those things working together? HEAT.

There's a whole cooling system to keep everything at a tolerable temperature for your engine's parts, and a key part of that is the water pump.  Technically, it's pumping more than water. It should actually be called the "coolant" pump since the liquid that circulates through the system is a mixture of water and coolant. 

Basically, the water pump keeps this coolant moving through your engine, where it picks up the engine heat, and then is pumped into the radiator where it gets rid of that heat.  When a water pump fails, the engine heat can build up.  When you get a warning light on the dash (either a gauge or a light) that shows the temperature is too high, it could mean a bad water pump. 

They can fail for many reasons. They have bearings in them that wear out, as does the seal between the pump and the engine. They're often driven by a belt or chain that can go bad.  Corrosion can spell the end of a water pump, too. 

If a technician determines your water pump has failed, it's time to replace it. In addition, other components of the cooling system will be inspected.  The best way to avoid a water pump failure is regular maintenance of your cooling system which includes regular draining and flushing of the coolant. 

Just like it's important for you to keep your cool, the same goes for your vehicle's engine.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
www.agautodiagnosis.com