2003 Buick Lesabre Repair Question
Antifteeze leaking out of hole on side of engine block
It is either a freeze plug or missing sensor.
Freeze plugs are press fit and have to be hammered in. However, if you look on-line or at your local parts store you can find ones that bolt in.
The sensor is less likely but check to see if the hole is threaded and if you have any wires that are hanging with no connection.
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