Every GM factory fuel system is made up of many auto parts that work together to help keep your vehicle's engine properly gassed up. The main components include everything from your fuel tank and fuel pump to fuel filters and fuel injectors. Older vehicles incorporate a carburetor in place of injectors. There are as many fuel system configurations as main parts of a fuel system. They range from in-tank pump and semi-in-tank setups to pump set. Some in-tank pumps also feature a sucking jet pump. How a fuel system works is simple. The tank carries your gas, while the pump pulls fuel and sends it to your engine. Your fuel filter removes contaminants from your gas in the process, and either your carburetor or fuel injector helps make sure the right amount of gas makes it into the engine. Plenty of electronic and mechanical motor parts work alongside the fuel pump, including air sensors and an emission control system. Any fuel system parts can wear out or fail over time. Look for the signs of fuel system problems. They include whining noises from your fuel tank, trouble or failure starting, a sputtering engine, stalling at high temperature-gauge readings, and power loss while driving uphill or towing a load. You might start to see symptoms of reduced gas mileage. Your car can even surge, making it feel like you're stepping on the gas pedal, but randomly. If you experience these, it's best to perform a fuel system inspection. When it's time to buy the best OEM fuel systems and parts for your repair or replacement project, order them direct from GM online. You can take care of it right here at our auto parts counter. Order now, get the job done, and save time, money, and hassle!