A starter solenoid is an electromagnetic swap that engages the starter motor’s gear with the car’s flywheel. When the ignition secret is turned, the solenoid receives energy from the battery and creates a magnetic area. This magnetic area pulls in a plunger, which then pushes the starter motor’s gear into mesh with the flywheel. The starter motor then begins to show the flywheel, which in flip begins the engine.
A defective starter solenoid can stop the engine from beginning. Signs of a nasty starter solenoid embrace: