Why is there water in the Ford Focus spark plugs?

[LaJulianna]

Reasons: Water splashed in during car washing; Rain or snow entering through gaps under the hood or along wiring harnesses and pipelines. Below is relevant information about spark plugs: 1. Function: Commonly known as spark plugs, their role is to discharge the high-voltage pulses sent by the high-voltage wires (spark plug wires), breaking down the air between the two electrodes of the spark plug to generate an electric spark, thereby igniting the air-fuel mixture in the cylinder. 2. Main types: Mainly include standard spark plugs, insulator-protruding spark plugs, electrode-type spark plugs, seat-type spark plugs, pole-type spark plugs, surface-gap spark plugs, etc. Spark plugs, together with the ignition system and fuel supply system, enable the engine to perform work, collectively determining the engine's performance to a large extent.