Why is the Buick Excelle not responding when starting?

[BarrettRose]

The reasons why the Buick Excelle does not respond when starting are: 1. The battery is dead or faulty. Use a multimeter to check the battery voltage. In low temperatures, the battery's output power decreases due to increased electrolyte viscosity, reduced permeability, and increased resistance, making it difficult for the starter to crank the engine to the minimum starting speed, thus affecting engine ignition. 2. Spark plug damage. Check if the spark plug is aged or heavily carbon-fouled. 3. Poor contact in the high-voltage wire. Use a multimeter to test whether the resistance is normal. 4. No fuel. Press the fuel line while starting to feel if there is fuel pressure. 5. Ignition circuit failure. Use a multimeter to check for open circuits. 6. The vehicle is too old, and the fuel line is severely aged, causing insufficient fuel supply during startup and failure to ignite.