When an engine is suspected to be hydrostatically locked, regardless of what caused the problem, the following steps should be used. DO NOT use starter motor to rotate the engine, severe damage may occur.Inspect air cleaner, induction system and intake manifold to insure system is dry and clear of foreign material.Remove negative battery cable.Place a shop towel around the spark plugs when removing them from the engine. This will catch any fluid that may possibly be in the cylinder under pressure.With all spark plugs removed, rotate engine crankshaft using a breaker bar and socket.Identify the fluid in the cylinder(s) (i.e., coolant, fuel, oil or other).Make sure all fluid has been removed from the cylinders. Inspect engine for damage (i.e., connecting rods, pistons, valves, etc.)Repair engine or components as necessary to prevent this problem from re-occurring. Squirt approximately one teaspoon of oil into the cylinders, rotate engine to lubricate the cylinder walls to prevent damage on restart.Install new spark plugs.Drain engine oil and remove oil filter.Install a new oil filter.Fill engine with specified amount of approved oil.Connect negative battery cable.Start engine and check for any leaks.