What Causes the Clicking Sound When the Car Fails to Start?

[MarleyFitz]

The car fails to start and makes a clicking sound, which may be caused by the following reasons: 1. The starter motor is faulty and cannot drive the flywheel to rotate. Check whether the starter motor is working when starting the vehicle. 2. The battery is faulty and cannot store power. If you can only hear the sound of the starter when starting the car, it is very likely that the battery is dead and cannot start the car. 3. The fuel supply system of the vehicle is faulty. Disconnect the oil pipe joint on the engine, turn the ignition switch to the position where the instrument lights are on, and observe whether there is oil flowing out. If there is oil flowing out, the fuel supply system is fine; if not, further inspection is needed. 4. The ignition system of the vehicle is faulty. Pull out one of the ignition high-voltage wires on the engine, insert an old spark plug or other pen-shaped metal rod into the spark plug cap, and place the spark plug body or metal rod close to the metal part of the engine. Start the engine and observe whether there is a high-voltage spark phenomenon. If not, check the ignition system for problems.