Metro Motor

How Does Fuel Injection Work?

All modern vehicles come with fuel injection systems, so it’s a topic auto owners 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 car have? There’s one for each cylinder. So four, six or eight for most folks in Washington DC, DC. 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 pretty high-tech.

Fuel Injection Service

What’s the benefit of a fuel injector cleaning service? In order to work right, the fuel injectors have to deliver the fuel at a precise pressure at a very precise time. It’s vital that the fuel is sprayed in a particular pattern as determined by the engine design.

Over time, varnish can start to build up in the fuel injectors, effecting the pressure, pattern and timing of the fuel charge. The result is that the fuel doesn’t get burned as efficiently as it could. That robs performance and hurts gas mileage.

What About Dirty Fuel?

How does dirty fuel affect the fuel injectors? The fuel injectors are the last stop in the fuel system. It starts at the fuel tank. Frankly, the best way to keep your fuel injectors working well is to use high quality fuel. It’s tempting to shop for bargains with fuel prices as high as they are, but major brands in the Washington DC area have better detergents and additives and deliver consistent quality.

What About a Good Fuel Filter?

The fuel filter is a critical component of the fuel system. Its job is to filter out the dirt and rust that collect in the fuel tank. If it’s clogged up, the dirt will bypass the filter and head upstream to the fuel injectors.

It’s vital to replace the fuel filter when your auto manufacturer recommends it. That’s part of a comprehensive fuel system cleaning.

Fuel Injection Systems

There are different kinds of fuel injection systems. Port fuel injection systems, the kind most gasoline engines have, operate at 60 pounds per square inch. The injectors for the new gas direct injection engines require 10 to 30 times as much pressure. And some diesel engines for passenger vehicles have injectors that operate at 30,000 pounds or more per square inch. There’s no room for dirt and gum in a precision part like that.

There are a lot of good products available in Washington DC that can clean fuel injectors. They’re best used by auto owners to prevent fouling in the fuel injectors. Many can’t clean a seriously gummed up injector – that requires a professional deep cleaning.

Give us a call if you think your late model vehicle may be ready for a fuel injection service.

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