Greenwood Village Auto Repair

All modern Centennial vehicles come with fuel injection systems, so it's a topic Centennial drivers need to know something about. The mighty fuel injector is a valve that delivers the gas or diesel fuel to the right place, in the right amount at the right time—to be mixed with air and burned in the engine.So how many fuel injectors does your vehicle have? There's one for each cylinder. So four, six or eight for most folks in Centennial, Colorado. Some vehicles have 10 or 12 cylinders. The engine control computer makes adjustments to the fuel injector as it monitors the engine and other sensors. Fuel injectors are a pretty high-tech.Davis Automotive Repair can help Centennial drivers with a fuel injector cleaning service. What's the benefit? In order to work right, the fuel injectors have to deliver the fuel at a precise pressure at a very precise time. It's important that the fuel is sprayed in a particular pattern as determined by the engine design.Over tim ... read more

Have you ever gone to listen to an orchestra? The musicians take the stage early and tune their instruments. Each individual instrument must be in tune, but the critical thing is for the entire orchestra to be in tune with each other. That's why they tune up together.Now this is no surprise; I'm going to relate the orchestra to your vehicle. Your engine has many component systems that each need to be working properly. And the components need to be working in sync, all timed up together in order for the engine to work efficiently.We call this... (ta-da) a tune-up. When an orchestra's out of tune you get a bad concert. When your vehicle's out of tune you get bad performance and bad fuel economy.So check your owner's manual for recommended tune-up intervals. Or ask your Centennial service advisor at Davis Automotive Repair what he thinks....Just be careful not to say you want to make beautiful music together – that kinda makes us uncomfortable ... read more

  One topic that hits the news in Colorado on a regular basis is the price of gas. The answer for some Colorado drivers is to buy a vehicle that gets better fuel economy. For those of us in Centennial who don't want to add a car payment to our monthly expenses, we need to improve our fuel economy any way we can.Following recommended service intervals by coming into Davis Automotive Repair is one of the best ways people in Centennial can keep their vehicle running efficiently. That means better fuel economy. When you give it some thought, it only makes sense. Dirty oil or transmission fluid can't lubricate or clean. That means more drag which reduces fuel economy.Keeping up with scheduled oil changes and transmission services will save gas for Colorado drivers.Dirty engine air filters are another efficiency pirate. They rob your engine of enough air to effectively burn the fuel, so you need more gas to get the job done. Replacing a dirty air filter can pay for itself in fuel saving ... read more

In very simple terms, a fuel injector is a valve that squirts fuel into your vehicle engine. Your engine control computer tells the fuel injector how much fuel to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute in every single fuel-injected vehicle driving down Centennial roads.Most fuel injectors for gas engines are known in the Centennial automotive community as port fuel injectors because they deliver the fuel to a port just outside the cylinder. The fuel pump provides pressure needed to squirt the right amount of fuel into the engine. A few have recently introduced gas direct injection systems on some engines. They are now available at some Colorado dealerships. These systems inject the gas directly into the cylinders under very high pressure – many times the pressure of port injection systems. Although more complicated, di ... read more

Many Centennial drivers have found themselves in the following situation: They go to get their oil changed and their friendly service advisor at Davis Automotive Repair recommends a new engine air filter. They say yes, but don't know what an air filter is or what it does.If this has happened to you, rest assured that you did the right thing by getting a new one. But you should never be too embarrassed to ask your Davis Automotive Repair service advisor for more information. It's your vehicle and you have a right to understand what you're paying for.Let's review: "What does an air filter do?"Air is the focus of this discussion. What is the air like outside in Centennial right now? Can you see any smog? Is it full of pollen? How about dust? Anyone in Colorado with hay fever can tell you that there's plenty in the air that you can't see. Well, the engine air filter's job is to clean that air before it goes into your vehicle engine, to mix with the fuel an ... read more

Is your vehicle sometimes hard to start early in the morning? When you turn the key, does it hesitate or stutter? If so, the problem could be the result of a dirty fuel system. Your vehicle's fuel system starts with the air filter and ends in the top of your engine. Over time, different parts of the system get dirty, which robs you of performance and hurts your fuel economy. Most Centennial vehicles have fuel injectors, rather than a carburetor. Fuel injection systems have fewer problems and require less adjustment. But they still need to be properly maintained. This is why your owner's manual has a schedule for cleaning your fuel injectors and other parts of your fuel system.Some Centennial residents are interested in buying fuel system cleaners that they can pour into their gas tank. You can do that - and there are lots of great products available that can help maintain an already clean fuel system - but these products cannot do a major cleaning. For that, you need to see D ... read more