- Coolant leak: A coolant leak can cause steam and water to come from the exhaust. This is because the coolant is leaking into the combustion chamber, where it is being burned off. Check for any leaks in the cooling system, such as around the radiator, hoses, or water pump.
- Blown head gasket: A blown head gasket can also cause steam and water to come from the exhaust. This is because the head gasket is no longer sealing properly and allowing coolant to leak into the combustion chamber. Check for any signs of a blown head gasket, such as white smoke from the exhaust, overheating, or a loss of coolant.
- Fuel injector problem:
A fuel injector problem can also cause a slight steam from the exhaust and a little bit of water drops on the tailpipe. This happens when the fuel injector is not properly atomising the fuel, causing it to pool in the combustion chamber. This can lead to steam and water being produced as the fuel burns.
- Condensation in exhaust:
Condensation in the exhaust can also cause steam and water drops on the tailpipe. This happens when warm air in the exhaust system cools down and condenses into water. This is especially common in cold weather or after driving through a car wash.
If you are unsure of the cause of the steam and water from your exhaust, it is best to take your car to a qualified mechanic for diagnosis.
