Your engine burns a mix of fuel and oxygen to create power. A genuine GM air intake system is the most dependable way to send the air into its combustion chamber. Air intakes are also known as induction systems, and how they work is straightforward. Your fuel injectors begin by spraying gas evenly through intake valves into the engine. Usually, it's an electronically controlled process. Your intake manifold, however, is what spreads air into all cylinders and helps keep them cool. How your induction system determines proper air usage is usually threefold. For one, your throttle body, near your air filter box, incorporates a mass airflow sensor. It's one control for how much air to use. Secondly, if your engine's gas, it probably has an air metering system. This component gives air use feedback to an engine control unit or ECU. Thirdly, an oxygen sensor or sensor array figures out the proper air levels in your exhaust. This helps tell the engine how to adjust fuel use. Throughout this process, your engine air filter helps eliminate harmful airborne pollutants before they enter its chambers. The result: your engine can keep running as efficiently as possible. Signs and symptoms of air intake system problems range from subpar engine performance to a lit-up Check Engine indicator. If you're high idling -- your engine's revving too fast in park or neutral or idling a lot faster or slower -- you could be seeing an induction system failure. Luckily, our auto parts catalog has the best GM air intake parts for your induction system repair or replacement project. Order with us online and save money!