Duke here and today we explore the world of Fuel Injectors, what there purpose is and what they do so............let's get barkin'!

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 Allied Auto Works in Los Altos can perform a fuel system service for you.  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.

 Allied Auto Works  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.

Well I hope you learned something today and until next time, this is DUKE! 

Cayenne here and  higher Los Altos fuel prices aren't going away any time soon. That's not good news for our wallets and means less bones for me.   A lot of Los Altos drivers are trying to find ways to cut down on fuel consumption and hang on to some of their hard-earned money and I'm here to help........so let's get barkin'.

North Americans drive billions of miles less during months of high fuel prices. That's right, billions. Of course CA vehicle owners can't stop driving altogether, so we still need to find other ways to cut fuel bills.

Preventive maintenance at Allied Auto Works in Los Altos and good vehicle care can actually pay for themselves by lowering our fuel consumption. Here's a real-life example of how that can work.

A family planned a four-day camping trip. Before leaving, they took their SUV into Allied Auto Works for an oil change. They flushed the cooling system, serviced all three differentials and cleaned the fuel system. They replaced the PCV valve and breather element. Then they checked the tires to ensure they had enough air.

This was several hundred dollars in maintenance and repair. You may be thinking how the family could possibly recoup the cost in gas and save money. First of all, the repairs all needed to be done anyway. Even if the costs aren't recouped, many of them will pay for themselves by preventing even more costly repairs later. Also, the family had planned and budgeted for the routine maintenance, so it didn't cut into their trip allowance.

The SUV pulled a one-ton trailer and hauled everything the family needed on their camping trip. At the end of the trip, the owner was surprised to learn the SUV had actually gotten better gas mileage than it ever had before—even with that heavy load. The repairs and maintenance at Allied Auto Works had improved the gas mileage by 25%! The family saved $48.00 in gas on their four-day trip. And they are continuing to reap rewards from the improved mileage.

So what can you do to save fuel? First, stay caught up on routine maintenance at Allied Auto Works. Almost every maintenance item listed in your owner's manual will maintain or improve your fuel economy. Second, take your vehicle into Allied Auto Works for scheduled tune-ups. And third, take care of needed repairs. You may be surprised at how much you save at the pump and probably with the improved vehicle performance as well.

If your Check Engine light is on, find out why and take care of it. Some of the problems that set off that warning light can seriously reduce fuel efficiency.

As you schedule preventive maintenance, don't forget your tires. Proper tire pressure and wheel alignment are both essential to good fuel economy.

Here's some more auto advice about some simple things you can do to improve fuel economy, beyond maintenance and repairs:

Dump the junk. More weight in your car equals more fuel. You'd be surprised how much stuff people carry around in their cars. That adds up to a lot of extra fuel. One hundred pounds of extra stuff in your vehicle can add up to the loss of one mile per gallon of fuel.

Get the lead out. No, don't speed up, slow down. Get the lead out of your right foot. The single biggest drain for most Los Altos vehicles is speeding or sudden accelerations. Slow down and go easy on turns and lane changes, and don't treat every stoplight and stop sign like a green flag. These small changes can add up to quite a bit of change in your pockets.

We haven't mentioned the pills you can drop in your gas tank or special devices you can hook on your fuel line in order to increase fuel efficiency. There's a simple reason for that: they don't exist. There may be some truth behind some of these claims, but most of them are full-out scams. And if any of these things do actually help, it's not nearly as much as the things we've listed here.

Be smart. Your vehicle and your wallet will thank you for it.

Cayenne

Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
650.968.7227
http://www.alliedautoworks.com

Duke here and I am going to inject you with alot information today on Fuel Injection and how it works.......so let's get barkin'!

Los Altos residents know that engines need to burn fuel to operate. Fuel is pumped from your fuel tank to your vehicle engine where it is squirted—or injected—into your engine's cylinders. This is the function of the fuel injectors.

There are two ways to inject fuel into an engine. Fuel needs air to burn, so in the first method, fuel is injected into a port and allowed to mix with air—before it is drawn into the cylinders. In the second method, fuel is injected directly into the cylinders and mixes with air after it enters the vehicle engine.

Direct injection engines burn fuel more efficiently than conventional vehicle engines. Some models can deliver the power of a V8 with the economy of a V6.

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

Why the big difference in power? Direct injection systems allow fuel to be squirted into the vehicle engine at hundreds of times the pressure of a conventional engine. This atomizes the fuel better (breaks it down into tinier droplets), which means more of it gets burned, which translates to more power for your engine. It also results in cleaner emissions.

Fuel injectors are precision instruments. They have to deliver the right amount of fuel at exactly the time the vehicle engine needs it. They are also engineered to inject fuel with a specific spray pattern. This spray pattern allows for maximum fuel efficiency and proper atomization. Direct injection engines require a much higher degree of precision than conventional engines. For this reason, they are equipped with more sophisticated computers.

When fuel injectors get dirty, their precision drops off. The spray pattern won't be precise, and the timing of fuel delivery may be off. This decreases fuel efficiency and fuel economy as well as delivering less power to the engine.

Los Altos residents should understand that fuel injectors are not cheap to replace. Direct injection fuel injectors are even more . And we're talking a mortgage payment to buy a set of new fuel injectors for a diesel engine.

So keeping your fuel injectors clean is just good auto advice. The best way to do this is to change your air and fuel filters regularly and practice other habits of good vehicle care and preventive maintenance. Cleaning additives in your fuel can also help.

If you do end up with gum or varnish in your fuel system, you'll need a professional fuel system cleaning. This will clean out your whole system, including the injectors. The good news is that with proper maintenance, Los Altos drivers will enjoy better fuel economy and their fuel injectors will last for a long time.

Contact Allied Auto Works for more tips to help you improve your performance and safety.......and tell them Duke sent ya!    

Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
650.968.7227
http://www.alliedautoworks.com

Hi Cayenne here on this beautiful Summer day.   I know I love to go for long car rides and an important factor is the tire to make your ride pleasant.  So today I will bark to you about rotating and balancing your tires and what a difference it can make.  So let's get barkin!

Tires do a lot of work for Los Altos drivers. They transfer engine power and braking forces to the road; they handle steering control; and they cushion all those bumps and jolts while driving around Los Altos. They also support the entire weight of the vehicle, including you and your passengers. With such important work to do, you want your tires to do their job well. And since replacing tires is fairly pricey, you want them to last as long as possible.

There are three keys to long, even tire wear for Los Altos driving:

• Proper tire inflation
• Proper wheel alignment
• Regular tire rotation and balancing

The front tires on a car take the brunt of the steering forces. As they push through turns, the shoulders of the front tires wear down more quickly than the rear tires. Rotating front and rear tires allows them to all wear at about the same rate. That's especially true of front-wheel-drive vehicles whose front tires steer and put the power to the road.

SUVs and pick-ups, especially four-wheel-drives, also tend to wear their tires more unevenly than cars because of their suspension and drivetrain set-up. Your owner's manual will likely contain a schedule for tire rotation. It's usually every 5,000 miles/8,000 km or so.

Also, there are different rotation patterns for different vehicles. Allied Auto Works will know which is right for your vehicle. That brings us to wheel balancing. When wheels are balanced, they spin on the axle evenly. When they are out of balance, they wobble a bit. That makes the tires wear unevenly and may transmit a vibration to the car. Your friendly and knowledgeable Allied Auto Works service advisor puts weights on your wheels to balance them out so that they turn true and smooth.

Tires are a big investment for Los Altos drivers. They're designed for keeping you safely on the road in Los Altos. The cost for regular rotation and balancing is more than made up in extended tire life. And, can you really put a price on your safety and that of your passengers?

Til next week, this is Cayenne

 Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
650.968.7227
http://www.alliedautoworks.com