![]() ![]() If water has been inside a standing engine for any length of time, it could have caused rust bands to form inside the cylinder. Further, water is corrosive to the internals of an engine. If the liquid was introduced to the cylinder through a failed component, typically the head gasket, this must be diagnosed and rectified. The hydrolock, however, was a symptom, not a cause. Once reassembled, the engine should start as normal. Rectification is by removing the spark plugs or injectors then turning the engine on the starter motor this will expel the liquid from the cylinder or cylinders. There may well be no internal component damage. If an engine hydrolocks at idle, it may simply stop and refuse to turn on the starter motor. Given that most of the major internal components have been destroyed, replacing the engine is typically more cost-effective than rebuilding. If only one piston hydrolocks and the engine continues to move, there will be a loud screeching noise. Typically, an engine will seize solid if it hydrolocks at speed. ![]()
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