How to fix this depends on where specifically it is leaking from.
antifreeze leaking into the oil pan
Leaking from? Hose Water pump Intake gasket
Could be a gasket, an o-ring or a seal. Need more info as to where it is leaking.
location of the heating thermostat for the 99 Buick lasabre
where is the fuel pump switch located for a 1992 buick lasabre
That sounds like a wheel cylinder leaking brake fluid.
the bearing in the water pump has gone bad! needs replacing!will start leaking soon!
in the oil
Buick vehicles do not have inertia/reset switches.