The role of the gas hood struts

Gas hood struts, also known as gas springs, rams, or dampers, are gas-actuated supports that help open and hold pressure on a car’s hood once it’s up.

They’re made of a cylinder that contains a combination of nitrogen gas and oil, which work together to provide a smooth, controlled motion. When the hood is closed, the gas inside the cylinder is highly compressed. When the hood is opened, the gas pressure pushes against the piston rod, which helps lift the hood. The heat from the engine compartment can also expand the gas in the strut, which helps it hold the hood open.