Describe the function and maintenance requirements of a turbocharger wastegate.

The function of a turbocharger wastegate is to regulate the amount of exhaust gas that flows through the turbocharger turbine. The turbocharger uses exhaust gas to spin a turbine, which in turn spins a compressor that forces more air into the engine, increasing its power. The wastegate prevents the turbocharger from over-boosting, which can damage the engine. Over-boosting occurs when the turbocharger produces too much boost pressure, exceeding the engine's design limits. The wastegate is a valve that bypasses some of the exhaust gas around t....