Why can't the car key start the engine suddenly?
1 Answers
If the car key can be inserted and turned but the car won't start, it means the starter motor circuit is not connected. The reason could be that the contacts linked to the ignition switch rotation are burnt out or loose. Although the key is turned, the contacts are not connected, resulting in an open circuit. The car starting system consists of a battery, ignition switch, starter relay, and starter motor. The function of the starting system is to convert the battery's electrical energy into mechanical energy through the starter motor to start the engine. Insufficient battery starting capacity: In extremely cold regions, most cases of no response when turning the key are due to insufficient battery starting capacity. Due to climatic conditions, battery performance significantly declines in winter. If the battery has been in use for about 3 years and is nearing the end of its life, it should be replaced promptly. Similarly, engine oil is also affected to some extent, with poor fluidity in winter. It is recommended to warm up the car for a few minutes after starting and avoid high RPMs initially. Severe carbon buildup on spark plug electrodes: If there is severe carbon buildup on the spark plug electrodes, they can be removed and cleaned with a copper brush. Remember to place the removed parts in order and then reassemble them in reverse order.
