Spoon Sports 11/1/2011Cracked head. The white smoke was probably coolant getting into your cylinders, and being evaporated out through the exhaust. (Both steam, and stuff similar to the stuff that comes out of fog machines) If it's SPRAYING OIL it's BADLY cracked. You should probably be able to see it, somewhere.
The head is the top end of the engine. It closes off the top of the cylinder and contains valves which open and close to let in air (and in some cars, fuel) and let out exhaust. It also circulates oil and coolant through it...but the oil and coolant are kept separate (and generally, kept out of the combustion chamber in the cylinder). If the head gets cracked, you can lose compression in one or more of your cylinders (and compression is what makes the car go), and your oil and coolant can intermingle with one another (this is bad) and get into the cylinder (even worse).
If you've done some basic work on your car before, you have a good manual for your car, or you know of a website offering instructions specific to your car, you can replace this yourself, but it'll probably take you a weekend.
You're going to need a new head (the one you have probably cannot be fixed), a new head gasket (cannot be reused) and new head bolts (also cannot be reused). There is probably a bunch of other stuff that you might as well replace at the same time (accessory belts, maybe timing belt/chain and water pump).
This is going to cost you a minimum of high hundreds of dollars, and 1-2 dozen hours if you do it yourself. Maybe up to 2 grand or so if you pay someone to do it (and if you have them replace EVERYTHING that can be replaced at the same time as a head). And that depends how much the head costs.
HouseCallAuto 11/1/2011Remove the timing belt cover and look for a leaking seal at the oil pump or at the cam sprocket. No worry yet.