AUTONET TV

Hitting the Brakes in Winnetka

Safety should always be an element of your vehicle care. So even if you don't care about how your vehicle looks, you should practice preventive maintenance to protect yourself — and other Winnetka drivers — on the road. And good safety starts with good brakes.

Brakes need a regular inspection. There are  parts that wear out or wear down, and it's best to replace them before you have serious problems.

Of course, if you are having trouble with your brakes, NOW is the time to fix them. If your brake warning light is on, that's a good sign that you need your brakes checked. You can also tell something is wrong with your brakes by the feel of the pedal or unusual sounds while braking. If the brake pedal is low, feels spongy when you press it or is hard to push, that indicates a problem with your brakes. If you hear squealing, grinding or clunking noises when you brake, that can also indicate serious problems. If vibrations accompany braking, then it is to get your brakes checked.

Brakes come in two basic types. With disc brakes, a rotor is attached to the axle of the vehicle. Padded calipers straddle the rotor and close when the brakes are applied. The resulting friction causes the rotor — and the axle — to stop turning. With drum brakes, brake pads (also called shoes) press against the inside of a drum to create friction and stop the drum, and hence the vehicle's wheels, from turning.

When A.G. Automotive & Diagnosis services your brake system, your friendly and knowledgeable service advisor checks all of the brake pads for wear. If they are too thin, they need to be replaced. This is an inexpensive repair at A.G. Automotive & Diagnosis compared to what procrastination will cost you. If pads wear away completely, then the rotors and drums can be damaged. They will have to be either resurfaced or replaced, and that can be expensive. But if your vehicle brake pads are worn out, then your brakes are compromised and your stopping power is greatly reduced. You could easily wind up in an accident.

Brake pads come in several different grades such as regular, metallic and ceramic. The higher grades are more expensive, but they also work better. CA drivers who want better and smoother braking should consider upgrading. However, Winnetka drivers should NEVER use a brake pad that is lower than their vehicle manufacturer's recommendation.

After your brake pads are checked at A.G. Automotive & Diagnosis, it's also wise to have your brake fluid checked. This is a critical element in your brake system. When you press your brake pedal, you are compressing the brake fluid, creating pressure that activates the brake pads. If your fluid pressure is low, it will decrease your braking power. The pads just won't be able to press hard enough against the rotor or drum to stop your vehicle. Just as with worn pads, insufficient brake fluid can lead to an accident in Winnetka.

Water can build up in your brake fluid, which can cause corrosion in your braking system. Eventually this can cause your brake fluid to leak. So Winnetka drivers should also change their brake fluid periodically. Your vehicle owner's manual will have guidelines on how often it should be replaced, or you can ask a service advisor at A.G. Automotive & Diagnosis. 

Remember, Winnetka folks, safety first. It's auto advice for all Winnetka drivers on the road. You're not just protecting others; you're protecting yourself.

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

Cooling System Components

Today we want to talk about a system in our vehicles – the cooling system. It's one of those things that Winnetka auto owners don't give much thought to until it fails and then they're stranded by the side of a road in CA.

Cooling systems fail more often than any other mechanical system – usually because of neglect. Don't you hate it when something breaks and you could have done something to prevent it?

The good news is that if Winnetka drivers take care of their cooling systems, they can keep working for the life of their car.

Here at A.G. Automotive & Diagnosis in Winnetka, we emphasize preventive maintenance services like replacing your coolant according to the factory schedule. But the various parts that make up the cooling system need attention too. The major components of the cooling system are the water pump, freeze plugs, the thermostat, radiator, cooling fans, the heater core, the pressure cap, the overflow tank and the hoses.

It sounds complicated, but we Winnetka residents don't have to be experts – we can leave that to our friendly and knowledgeable service advisor at A.G. Automotive & Diagnosis. But, having an overview will help us remember how to take care of your car's cooling system.

Most Winnetka folks would be surprised to know that burning fuel in your engine produces up to 4,500 degrees F/2,500 degrees C of heat. And all that heat has to be dealt with. If the heat can't be drawn off the engine, the pistons will literally weld themselves to the inside of the cylinders – then you just have to throw the engine away and get a new one. That would cost thousands of dollars.

Now the water pump is what forces the coolant through passages in the vehicle engine to absorb heat. The pump is driven by a belt that needs replacement from time to time. And the water pump will eventually wear out and need to be replaced. Spending some cash on replacing the belts and water pump is much less than the cost of repairing the extremely massive damage that can be done when an engine seizes.

There's another little known but important part of the coolant system that protects the engine. It's called a freeze plug. If you remember from high school chemistry, water expands when it freezes. In very cold areas, the coolant can actually freeze when the vehicle is left sitting.

It is hard to believe, but the expanding frozen coolant is enough to actually crack the engine block. The freeze plugs fit into the engine block. They fit tight enough to withstand the pressure of a running engine, but can expand or pop out if the coolant freezes. These little things save a lot of engine blocks.

The team at A.G. Automotive & Diagnosis can check your cooling system and make any necessary adjustments or repairs. Give us a call.

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

Saving Lives in Winnetka with Tire Pressure

All new passenger vehicles on our Winnetka, CA, roads now have tire pressure monitoring systems – TPMS for short. They are designed to alert you if your tires are underinflated. Since they are fairly new, a lot of people have questions about them.

First off, the most important thing is that you still need to check your tire pressure every week – or at least every time you gas up. The TPMS system alert comes in when your tire is 20 percent below the factory recommendation. So if the recommended pressure is 34 pounds per square inch, the TPMS warning won't come on until the pressure is at 28 pounds. That's significantly underinflated, enough to raise safety concerns.

The worst is tire failure. A severely underinflated tire can overheat and fail. Also, handling degrades to the point that you may not be able to steer out of trouble. Also underinflated tires wear out faster and they waste fuel. So it's costly to not stay on top of proper inflation.

What's the practical value of the TPMS system? Well, it's twofold. First, it can alert you when your tire is losing pressure due to a puncture or a bent rim. That's an important warning that you might not have gotten until next time you gassed up.

The second is that we all occasionally forget to check our tire pressure. So it's a fail-safe system to let you know there's a problem brewing.

Other things can cause your TPMS system to go off. The system also monitors itself. The sensors that are mounted in the wheels have little batteries that send a signal to the monitor. The batteries go dead over time and the TPMS system will let you know. And the sensors could break. Also road salt from our CA roads can ruin them.

There's also a hassle factor that your Winnetka, CA, tire center has to contend with. For example, when you have your tires rotated in Winnetka, the TPMS system has to be re-calibrated so that it knows which tire is on which corner of the car. Same is true for when you have new tires or winter tires installed. Flat repairs, as well.

That takes extra time. And it requires the right equipment and training. Special – and expensive – tire change machines need to be used with some sensors. It's all complicated by the fact that there are a number of different TPMS systems in use so the tire professionals at A.G. Automotive & Diagnosis need equipment and training for each kind. Tire centers have had to raise the price of some of these basic services to offset their increased costs.

Also if you add custom wheels on your vehicle, you need to put in new TPMS sensors if your originals won't work on the new rims. If you don't your TPMS light will be on constantly and you won't have the benefit of the warning system.

All in all, the mandated TPMS systems will save lives, so they're worth the added hassle and expense.

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

Following Recommended Intervals for Your vehicle

If you're reading this article in Winnetka, CA, then you probably care about your vehicle and how it runs. Even though you care, there is still that moment of dread when your professional service advisor at A.G. Automotive & Diagnosis tells you the manufacturer recommends some additional service. Your heart beats a little faster, your blood pressure rises. You worry about spending more money than you had planned. And you worry that if you say "no," you might be harming your vehicle or risking your family's safety.

At the risk of sounding like your dad, you really should have done your homework. Service recommendations are in your owner's manual. But it is not like you want to keep your vehicle auto maintenance schedule on your nightstand for bedtime reading.

Vehicles are complicated machines and it takes some effort for Winnetka residents to keep them running well. That is why they have maintenance schedules that explain how to keep your vehicle performing efficiently and prevent breakdowns. In a typical owner's manual you'll find: oil change, brake fluid and pad change, coolant system service, transmission service, battery electrolyte levels, cables and terminals, tire pressure and wear, CV boots, cabin air filter, air conditioning, heater, fuel filter, air filter, belts and hoses, power steering fluid, differential service, fuel system cleaning and wheel alignment. And then there are mechanical service requirements like timing belt changes, valve adjustment, steering function, engine and exhaust leaks - yeah, it is a really long list!

Fortunately, this isn't a test: Winnetka residents don't need to have it memorized. Your friendly advisor at A.G. Automotive & Diagnosis has access to your manufacturer's recommendations. Don't be surprised when your service advisor at A.G. Automotive & Diagnosis reminds you something is due. Your manufacturer has taken great care in putting together your maintenance schedule. Let A.G. Automotive & Diagnosis help you stay on top of maintenance. You can expect them to suggest recommended services and tell you what problems they find under the hood. We'll also explain how urgent these services are so you can work them into your budget.

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