* Blown head gasket: A blown head gasket can allow coolant to enter the combustion chamber, causing white smoke and a loss of power.
* Cracked cylinder head: A cracked cylinder head can also allow coolant to enter the combustion chamber, causing the same symptoms as a blown head gasket.
* Piston ring failure: Piston ring failure can allow oil to enter the combustion chamber, causing white smoke and a loss of power.
* Faulty fuel injector: A faulty fuel injector can cause too much fuel to be injected into the combustion chamber, causing white smoke and a loss of power.
To diagnose the exact cause of the problem, it will be necessary to take the car to a mechanic for an inspection. Once the cause has been diagnosed, the mechanic will be able to recommend the best course of action for repairs.
In some cases, it may be possible to repair the problem without having to replace the engine. However, if the engine is severely damaged, it may be necessary to replace it.