White Smoke (Water In Combustion)
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2002 Mercury Sable, 2002 Mercury Mountaineer, 2002 Mercury Grand Marquis, 2002 Mercury Cougar, and 2002 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Check for cylinder head gasket leaks, intake manifold gasket leaks, cracked engine block or cylinder head(s) and repair as necessary. See appropriate article in ENGINES.