What happens when water gets in your spark plugs?

If it does, you probably have a blown head gasket or a crack in the head or block. Any of those are far bigger problems than getting wet spark plugs. But getting water in the plug between the housing and the (ceramic) insulator could potentially cause the plug to short out and not fire properly.

How do you get water out of a spark plug?

Are spark plugs still good if they get wet?

While trying to start a cold engine, wet fouled spark plugs can cause damage to the engine. Wires or coils in the spark plug as well as ignition coil, if they’re not working, it will not function properly.

Will water in a spark plug cause a misfire?

The water in the engine is filling up the spark plug tubes, and this causes the spark plug to short circuit, which causes a misfire. That’s not a big deal, since it’s actually fairly common, and it usually doesn’t cause the problem.

What causes water in engine cylinder?

Flooding isn’t the only potential cause. Engine water, known as coolant, or oil from a badly leaking head gasket can fill a cylinder beyond the combustion chamber capacity. The consequences are virtually the same, except engine oil won’t corrode like water does.

What causes water in the cylinder head?

If the heads gasket leaks water into the cylinder then one reason might be water is leaking. An excessively deep cylinder head may crack, as may warped cylinder surfaces or an improperly formed cylinder bore, which may crack water leakage joints.