Clicking sound when starting car?

Answer 1

A number of things could be wrong in this instance. The battery could have just enough power to drive the solenoid responsible for engaging the starter, or (if the battery is known to be good) the starter itself could be going bad. The starter is nothing more than an extremely powerful electric motor designed to turn the crankshaft of the engine. Like all electric motors, it has coils of wires to generate an electromagnetic field. If one of these coils is bad, it will prevent the motor from generating a stable field, and prevent the starter from turning.

That clicking sound is the voltage and current from the battery is being interrupted by a bad battery voltage or poor connections of the cables. Cables and connections are suspect number 1. Most problems are connections not tight. 2. Thousands buy new batteries unnecessarily because the dealer could have just tightened the connections.

3. The dealer did before his new battery went out of his store.