Most of the time its antifreeze in the exhaust system, the cat convert can hit temps of 1500 degrees inside it.
bad head gaskets, or a crack in the block or head.
White smoke is from burning radiator fluent.
head gaskets gone.
change the head gaskets
Water is in your engine. Check intake and head gaskets.
White smoke (steam) usually is the result of coolant getting into the combustion chamber probably through a bad head gasket or a cracked head.
White smoke normally means you are burning oil.
if it has a sweet smell its antifreeze, heads or head gaskets are leaking/blown no cheap fix be sure to have heads pressure tested at a reputable machine shop
oil getting by the rings causes white smoke and oil dripping out of the tailpipe.
white smoke can be either your car overheating, or smoke from an electrical issue
White smoke means head gasket, cracked head or equivelant.
water