brandi,
White smoke is usually engine coolant getting into the cylinders by way of a blown head gasket, fairly common on these engines. You will need to do a compression test on the car and determine the cause of the coolant getting into the cylinders. This is not good for the engine so I would suggest running it as little as possible until you determine the cause and repair it or have it repaired.
Shawn
ASE Certified Technician
PA Certified Inspection emissions, ASE Brakes Suspension, Lead diagnostic Tech.20 years exp