What can cause whit smoke from the exhaust?

1. Coolant leak: A leak in the coolant system can cause white smoke to come from the exhaust. When coolant enters the combustion chamber, it evaporates and turns into steam. This steam can then exit the exhaust pipe as white smoke.

2. Blown head gasket: A blown head gasket can also cause white smoke from the exhaust. This happens when the gasket that seals the cylinder head to the engine block fails, allowing coolant to leak into the combustion chamber.

3. Cracked cylinder head: A cracked cylinder head is a serious condition that can also cause white smoke from the exhaust. This can occur when the head gasket fails to seal properly, or when the cylinder head itself is damaged.

4. Other causes: In some cases, white smoke from the exhaust can be caused by other issues, such as a faulty fuel injector or a bad ignition system. If you're seeing white smoke from your exhaust, it's important to have your vehicle inspected by a qualified mechanic to determine the cause.