Question about 1999 Buick LeSabre
How do you know the engine hydrolocked? Did your mechanic tell you?
Hydrolocking occurs when the engine gets filled with a liquid such as oil or water, and because it's not compressible the way air is, it jams up the engine and prevents it from turning. It might bend parts and cause damage if you're not lucky. Generally the spark plugs should be removed and the engine turned to expel the liquid and allow it to turn again. Then you'll have to determine the extent of the damage.
If you changed the thermostat yourself, and in the process, stuck a garden hose down the air intake instead of filling the radiator, you could have filled it with enough water to hydrolock it. Otherwise, it's pretty unusual that a thermostat replacement could cause hydrolocking.
Posted on Dec 31, 2010
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Posted on Jan 02, 2017
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