White smoke coming from your car's exhaust typically means one ... leading to a check engine light and reduced performance as the vehicle's computer tries to make sense of bad info from the ...

However, white exhaust smoke may also be a sign that ... You may also experience reduced fuel efficiency and engine performance issues. "Blue smoke will cause your car to fail an MOT test and ...

Periodically checking the exhaust after the engine warms up can be helpful. Note that in cold weather, the exhaust will often be white for a short time as water that has condensed in the system ...

However, if white smoke continues to come out of the exhaust, this is generally a sign that coolant is leaking into the car’s engine. That’s not great news, as coolant helps to stop your ...