Clunking steering in 2006 Buick LaCrosse

Steering makes clunking noise and sounds like water splashing around drivers side under dash board

Did you have a question?

May be worn stabilizer links or a loose steering rack or a bad rack bushing.

The chance of this not being a serious problem is slim. It could be the warning sign that you are about to lose steering control at the worst possible time. If you are not mechanically inclined and do not have front end knowledge get this to a shop.