What Causes a Car to Fail to Start in the Rain?

[Marty]

The reason a car fails to start after rain is due to the engine spark plugs getting wet. Below are specific details about why the car won't start after rain: Solution: Remove the spark plugs, disconnect the fuel injector plug, start the engine to drain any water in the cylinders, replace the engine oil, then reinstall the spark plugs and fuel injector plug, and start the engine. It's important to note that when the car fails to start on a rainy day, do not attempt to start it repeatedly, as this can easily damage the valves. Preventive measures: Check if the spark plugs are leaking electricity, inspect whether the spark plug caps are cracked or loose, examine if the connection between the filter and carburetor is broken, check if the valves are too tight, verify if the ignition system is functioning properly, and avoid driving the car into areas with deep water during rainy days to prevent water from entering the engine.