A fuel injector works much like the spray nozzle of a hose, ensuring that the fuel comes out as a fine mist. The fuel mixes with the air passing through the inlet manifold or port and the fuel/air mixture enters the combustion chamber. Some cars have multi-point fuel...

The fuel system stores gasoline or diesel in the tank and then draws on this through fuel lines and delivers it through a fuel filter to either a carburetor or fuel injector. Fuel is then supplied to the cylinder chamber where it is mixed with air, vaporized, and...

Brake rotors and drums are an important components in the braking system that stop your vehicle. Brake rotors (they're also called brake discs) are what your vehicle's brake pads clamp down on to stop the wheels from spinning.  Some vehicles have brake drums and...

Control arms connect the car's suspension to the actual vehicle frame. They are connected to the frame through a component called bushings, while they attach to the suspension through the ball joint. That allows the vehicle to turn its wheel and pivot, connecting the...

Car bushings are small rubber or polyurethane suspension components that are used to isolate vibration, provide cushioning, and reduce friction between metal parts on your vehicle. Life expectancy of bushings depends on the location, and materials such as rubber vs...

In the braking system, brake pads are the component that applies pressure and creates friction to the brake rotors, and this stops the wheels.  Think of the number of times this action takes place on a daily, weekly, monthly and annual basis - and it's no surprise...

The front wheel bearings, along with the hubs, are important parts of your vehicle's steering, suspension, and braking systems. Most modern vehicles use a one-piece wheel hub bearing assembly that contains the hub, wheel bearing, ABS wheel speed sensor, and mounting...

A spark plug is a device in the engine of a motor vehicle, which produces electric sparks to make the petrol burn. A spark plug is threaded into the cylinder of an internal-combustion engine to ignite the fuel mixture by producing timed sparks between electrodes....

An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system that transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. The ignition coil on your...

Tire pressure sensors (TPS) communicate with your vehicle's computer relaying the pressure inside the tire.  If your vehicle is equipped with TPS and the tire pressure falls below the recommended pressure, you should see a tire pressure error on your dash. Keeping...