Part of a vehicle'sturbocharger system, a wastegate releases built up exhaust gases once it receives a signal from the actuator. Depending on the vehicle, the wastegate may be internal or external. Regardless of the location, the wastegate must open and close in order to perform properly. Sometimes it can become stuck in the open or closed position, in which case it fails. Fortunately, a wastegate provides various signs that it is failing, giving owners the opportunity to fix their vehicle before experiencing serious issues.