Gene’s Car Tips

Keep Your Cool In Los Angeles: Air Conditioning Service

Most Los Angeles drivers wait for their air conditioning to fail before they service it at Certified Auto Specialists. That’s because many Glendora and Covina motorists don’t really understand that automotive air conditioners need periodic service. Let me share some of the reasons why they fail.

First, like every machine, the sedan air conditioner parts need lubrication. The lubricant is actually mixed in with the refrigerant (that’s the stuff that makes the air cool). So sometimes, even though the air conditioner is still making cool air, the oil that lubricates the parts has just been used up: and unlubricated parts can fail in all California cars.

Now here’s a tip for Los Angeles drivers: You should run your air conditioner every so often during California winters. This circulates the lubricant to help keep the seals from drying out.

The air conditioner actually removes some of the moisture in the air. So if you have trouble with fogging on your windshield during California winters or during a rain storm, running the A/C on the defrost setting should help. Now on some Los Angeles cars you can’t run the A/C at the same time as the defroster. Don’t ask me why, but I suspect lawyers were involved.

Also, air and water can get into the A/C system. That can reduce the efficiency of the system and also lead to corrosion that causes damage. Los Angeles drivers should periodically purge the system and replace the refrigerant to clear out the air and water.

Glendora drivers should be aware of early warning signs of trouble: One might be that the air’s not as cold as it used to be. You may hear an unusual noise when the A/C cycles on. Those are signs to get your vehicle into Certified Auto Specialists in Glendora before the damage gets worse.

So following the recommended service intervals in your sedan owner’s manual can help prevent mechanical failure of your air conditioning system. You’re A/C system contains some expensive components like the compressor, condenser, dryer, etc. Anything Azusa and Covina car owners can do to lengthen the life of their A/C is well worth it.

Serpentine Belt Service At Certified Auto Specialists In Glendora

If you’ve ever heard a squealing sound under your hood, chances are it was your serpentine belt. Your serpentine belt is a long belt that’s driven by your engine. It winds around several accessories that power important automotive systems in your sedan. Let’s go over them.

First, the serpentine belt drives your air conditioning system. It spins the compressor that makes the cool air that takes the edge off the summer heat in Glendora.

Next, the belt powers the alternator. The alternator creates electricity that’s used by your sedan’s electrical systems and also charges your car battery. Without the alternator, the battery will go dead in a few miles.

The serpentine belt may also run the pumps for both the power steering (some are electric) and power brakes (some use vacuum boost).

And, on most sedans, the serpentine belt powers the water pump. The water pump circulates coolant through the engine to keep it within normal operating temperatures. On some Glendora cars, the water pump is powered by the timing belt instead of the serpentine belt.

When they understand what it does, Glendora drivers realize that if it breaks, it affects a lot of systems. That’s why manufacturers have recommended that it be changed every so often so that it doesn’t fail.

At Certified Auto Specialists, we can perform a visual inspection of the belt to see if it has any cracks that signal the belt could fail soon. If the belt has more than three or four cracks every inch, has deep cracks that penetrate half the depth of the belt, is frayed, is missing pieces or has a shiny glazed look, it needs to be replaced regardless of age or mileage.

If it has lost a significant thickness, it also needs to be replaced. There’s a special spring-loaded pulley attached to the engine called the tensioner pulley. Its job is to make sure there’s a constant tension on the serpentine belt so that it doesn’t slip. The spring can become worn and no longer provide the necessary pressure to keep the belt tight. At Certified Auto Specialists, we recommend that the tensioner be replaced at the same time as the serpentine belt.

As mentioned, a squealing sound could be a sign that the serpentine belt needs to be replaced. It may be loose if you hear a slow, slapping sound when idling your sedan.

All in all, the serpentine belt’s an important part for the function of your sedan. And it’s not that expensive to replace at Certified Auto Specialists – so it’s good to do so before it fails.

Commitment to Make Your sedan Last At Certified Auto Specialists

For advice on how to make your sedan last longer, visit us at Certified Auto Specialists
476 Vermont Avenue
Glendora, California 91741
626-963-0814

These days many people in the Los Angeles area are really committed to making their cars last a long time. First thing: you’ve got to start with what you’ve got. It’d be ideal if people started with a brand new car, never missed a scheduled service item, paid attention to the severe service maintenance schedule and had regular inspections. But if you’ve had the vehicle for a while, or bought it used, its maintenance history is what it is; and that’s where you start.

Go through the maintenance schedule for your sedan and see what’s been done and when. Have your Glendora service advisor at Certified Auto Specialists do an inspection and come up with a list of stuff that needs to be done. Review the list and prioritize the work, talk about budget and make a plan to get caught up.

Making a plan is so important. Suppose you go in for an oil change and learn you need your cooling system serviced, a transmission service and are coming up on a timing belt replacement in the next 5,000 miles. You might be pretty overwhelmed.

To make it even more stressful, these are all very important systems that are expensive to repair if there’s a failure. In consultation with your Glendora service advisor, you might decide to take care of the transmission on this visit, set an appointment for the cooling system service next month and get an estimate for the timing belt replacement so you’ll be prepared for it in a few months.

Having a plan for taking care of these important services will set your mind at ease.

Direct Fuel Injection Update From Certified Auto Specialists

For those of you in Glendora California who pay attention to these things, you may have been hearing about the new direct injection engines and want to learn more about them. Some deliver the power of a V8 with the economy of a V6.

For example, in one family of engines the conventional V6 makes about 250 horsepower. The direct injection version of the same engine makes over 300 horsepower and gets essentially the same gas mileage. The turbocharged version makes over 350 horsepower.

So what are the differences from a conventional engine?

The core difference is in the fuel injection system. The system most vehicles use now is called a port injection system. The fuel injector squirts fuel into a port just outside the cylinder where it’s then drawn into the engine with the air.

With a direct injection system, the injector squirts the fuel directly into the cylinder. The gain in power and economy come because fuel injected directly into the cylinder during the combustion cycle is burned much more efficiently.

First, the fuel is squirted in at hundreds of times more pressure, so it’s atomized much better and burns cleaner and stronger. The other big advance is in electronics. Faster engine management computers can control the additional precision required to manage direct fuel injection.

Fuel injectors are precision instruments. They have to deliver a precise amount of fuel at exactly the right time. The design of the engine also dictates a particular spray pattern for the fuel. If a fuel injector is dirty or gummed up, it can’t do its job as well. That means less power and worse fuel economy for your sedan and can lead to damaged fuel injectors.

Replacing fuel injectors isn’t cheap. Direct injection injectors are even more expensive because of the extremely high-pressure they use. Same thing for diesel fuel injectors; we’re talking mortgage payment-range to replace a set of diesel injectors.

A professional fuel system cleaning from Certified Auto Specialists gets out the gum and varnish in the whole system, including the fuel injectors. Keep those injectors clean and they’ll last a long, long time.

Proper Fluids for Your Vehicle

We would like to give you an update on some of the things happening in automotive fluids. You know, cars are becoming more sophisticated everyday – and fluids such as, oil, coolant and transmission fluid are becoming more specialized at about the same pace.

The do-it-yourselfer has to be pretty careful so that they do not actually harm their vehicle with the wrong type of fluid. That is why so many California car owners rely on the advice of their service consultant to not only get the correct family of fluids, but to suggest the formulation that is best for their car and the way they drive.

Let’s start with engine oil. If you have been paying attention, you will have noticed a number of new oil weights on the scene in the last several years. Modern engines are built to much tighter tolerances and have very complicated valve trains. The oil must be thin enough to lubricate complicated parts when the engine is cold. The weight of an oil is expressed in terms like 20-W-50 or 5-W-30. Manufacturers recommend the weight of oil for each vehicle they make. The recommendation is based on engine design. Your Glendora service center will know what weight your manufacturer recommends – and it’s important to follow those recommendations. A service adviser at Certified Auto Specialists can also offer suggestions for special formulations and can explain conventional and synthetic oils.

Antifreeze, or engine coolant, is another area that has become more complicated. For a long time, manufacturers only called for a couple of different types of coolant. Now there are several different formulations that are needed because of the different materials that manufacturers are using to build the cooling system. Using the wrong type of coolant can actually void your warranty, so you want to get that right.

Transmission fluid is beginning to be specialized as well. New transmission designs have particular requirements that mandate the use of specific formulations. Recently, new, somewhat confusing, standards for brake fluid have also been released.

Not too long ago, there was a good chance that all of the vehicles at your house would use many of the same fluids. However, as automotive technology advances, the array of basic automotive fluids you need will grow. And, some of the formulations will cost a little more. Fortunately, your Los Angeles service center will continue to update their training to keep pace with technology so that you’ll get the right fluids your car needs. It’s all part of the commitment your service center makes to your driving peace of mind.

Severe Service Requirements

A lot of our viewers have asked whether or not they should use their severe service maintenance schedule, which is listed in their car owners’ manual. It can be confusing. Let’s clear the air on this subject. Cricket Killingsworth is from QMI/Heartland, a manufacturer of automotive products and fluids. She’s been in the automotive business for 20 years and is a speaker, a trainer, and a writer. Cricket says there’s so much confusion on this topic because, “Most owners’ manuals actually have two maintenance schedules. Sometimes these are called ‘regular service’ and ‘severe service’. Sometimes they’re simply called Schedule 1 and Schedule 2. A severe service schedule recommends that things like an oil change, air filter replacement, and transmission service be done more often: either in fewer miles or in less time.

Manufacturers create these specific schedules for each vehicle they make. So there isn’t one generic schedule that applies to all cars. In addition to your owners’ manual, Glendora automotive repair centers subscribe to information services that provide the maintenance schedules for every vehicle – so they can help you know when to take care of needed services. Below is a typical definition for severe service.

  • Most trips are less than four miles
  • Most trips are less than ten miles and outside temperatures are below freezing
  • You drive in very hot weather
  • The engine is at low speed most of the time (not on the highway)
  • Stop and go driving
  • You operate your vehicle in dusty or muddy conditions
  • You tow a trailer, regularly carry heavy loads or carry a car-top carrier

It’s common sense: Just a few minutes at freeway speeds allows the moisture in the oil to evaporate. Very short trips, or trips of less than ten miles when it’s very cold, don’t allow the engine to heat up enough to get rid of the water. And water in the oil leads to damaging sludge. Also, towing and heavy loads raise operating temperatures and cause fluids to breakdown more quickly. Dusty and muddy driving means that more dirt will get past the air filter to contaminate the fuel system and engine oil.

The bottom line is that you need to decide for yourself if the regular or severe service schedule is right for you, based on your driving. Look at your owners’ manual, or talk with your Certified Auto Specialists service advisor who can help you know which schedule to follow. Certified Auto Specialists is located at 476 Vermont Avenue, Glendora California.,

Here is what a fleet manager said recently: “Since city miles are generally tougher on vehicles than highway miles, we use the manufacturer’s severe service schedule as the basis for our preventative maintenance program. We massage those schedules over time, increasing or decreasing the service intervals so that they make the most sense. There is a little bit of art to go along with the science.

Make an honest evaluation of your driving habits. Unless you do mostly California highway driving in moderate weather, you’ll likely have a fairly good amount of severe service mixed in. Some people just want to play it safe and follow the severe service recommendations, rather than analyzing how they drive each month.

Air Conditioning Service In Glendora

Hey Glendora, California Do you hear loud noises under the hood when you turn on your air conditioner? Do you only get cool air sporadically? If so, it is time to get your air conditioner checked. It’s real easy to take your car’s air conditioner for granted. Just push the right buttons and out comes cool, dry, clean air. But your air conditioning system needs attention from time to time to help it keep its cool.

When most people in Glendora hear the words “air conditioning problems”, it sends a shiver up their spine. That is because the air conditioning system is fairly complex. It has a lot of parts and when it’s broken, it’s expensive to repair.

What things can we do to prevent air conditioning breakdowns?

A common cause of air conditioning failure is leaks. Water and air can leak into the system. The system doesn’t work as well with air in it. And water can cause rust that leads to damage of the A/C components. Also, refrigerant, the stuff that makes the air cold, can leak out, reducing the efficiency of the system, making it work harder to cool the air. Periodically evacuating the air conditioning system and recharging it keeps the proper amount of clean refrigerant in the system so it cools better and lasts longer.

You should also run the air conditioner regularly, even in a frosty Glendora winter, so that it lubricates itself and keeps the seals from drying out, which leads to leaks. Your owner’s manual will have recommendations for how often to service your air conditioner. Of course, if it’s not working right, now is the time to get it checked. Certified Auto Specialists can inspect and test your air conditioning and offer evacuation and recharge services. This goes a long way to avoiding having to bring your air conditioner in for major repairs.

New environmental laws have stopped the manufacture of Freon, a refrigerant that was common in cars made before 1993. There is a very limited supply of Freon so the price is very steep. It may not be worth its weight in gold, but it probably is worth its weight in silver. If you have an older vehicle that uses Freon, you may want to consider having it retrofitted to use the new R134-A refrigerant. It will pay for itself in the long run. So, if your AC is just a lot of hot air, bring it in to Certified Auto Specialists for an inspection.

Certified Auto Specialists
476 Vermont Avenue
Glendora, California 91741
626-963-0814

Fuel Injectors

The last new car sold with a carburetor in North America rolled out of the dealership in 1990. Since then, all new vehicles have had fuel injectors. In very simple terms, a fuel injector is a valve that squirts fuel into your engine. Your engine control computer tells the fuel injector how much gas to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute. Fuel injection is a much more precise way of delivering fuel than carburetors. That translates into better fuel economy and power. Virtually all fuel injectors for gas engines are known as port fuel injectors because they deliver the fuel to a port just outside the cylinder. Port fuel injectors operate at about 40 to 80 pounds per square inch of pressure.

A few auto makers have introduced gas direct injection systems on some engines recently. These systems inject the gas directly into the cylinders under very high pressure – hundreds of times the pressure of port injection systems. Although more complicated, direct injection technology promises greater power with improved fuel economy, so we can expect to see more of it in the future.

As you can see, the level of precision required of your fuel injectors is very high. They need to be operating properly in order for your car to run right.

High temperatures under your hood and variations in gas quality cause fuel injectors to become fouled with wax, dirt, and carbon. Injectors can become partially clogged, preventing them from delivering the proper amount of fuel at the correct pressure. The design of each engine requires a specific spray pattern from the fuel injector that might be altered when the injector is dirty. When injectors are dirty, the fuel doesn’t burn as efficiently resulting in poor fuel economy and loss of power. So it is important to keep your fuel injectors clean.

Skilled service technicians at Certified Auto Specialists in Glendora can perform a fuel system service for you. (Visit http://www.certifiedautospecialists.com/sc/apps/contact/contact.cgi.) That is a fuel system service – not just fuel injector cleaning. That is because the fuel has a lot of ways to become dirty or contaminated between the gas tank and the fuel injector. A fuel system service starts with a fuel filter replacement. This filter cleans the gas as it leaves the tank. The various parts of the fuel intake system need to be cleaned from time to time to remove harmful gum, deposits and varnish. Finally, the fuel injectors are cleaned so that they operate properly and deliver the right amount of fuel at the right time.

Your San Dimas area service center uses a process for cleaning your fuel system that includes state-of-the-art cleaning chemicals as well as some old fashioned scrubbing. Proper maintenance of your fuel system means that you will spend less on gas, enjoy strong performance and prevent costly repairs down the road.