When energized, the starter solenoid does what?

• A. It energizes a coil inside the solenoid
• B. When energized the starter solenoid collides a contact transferring high electrical current flow from the battery to the starter motor
• C. It opens a valve to relieve pressure
• D. It rotates the starter gear

Answer: (B)

When the starter solenoid is energized, it acts as a heavy-duty switch to connect the battery to the starter motor. The energizing coil creates a magnetic field that pulls a plunger, which closes the high-current contacts. This completes the circuit from the battery to the starter motor, allowing a large amount of current to flow and turn the engine over. The solenoid’s action also helps push the starter gear into engagement with the engine’s flywheel so the motor can crank effectively. This is why the best description is that energizing the solenoid transfers high current from the battery to the starter motor.