White smoke coming from your vehicle's exhaust system that has a sweet smell to it is usually a sign that coolant is being burnt in your engine's combustion chambers. This usually indicates a blown head gasket, but other causes are a cracked cylinder head, cracked engine block, or on some vehicles the intake manifold has water ports that can leak into the intake manifold and enter the combustion chambers that way.Here are a few links below explaining what's going on and a couple of possible culprits:
Having said that, a little bit of steam coming out of your exhaust pipe is a normal function of a catalytic converter, as water is a byproduct of the catalytic conversion of the vehicle's exhaust. This water can easily turn to steam as the hot exhaust evaporates it. A good way to tell if you have a coolant leak problem into the engine's combustion chambers is to watch the coolant level. If it doesn't go down, then it's not being lost and is probably just steam from the catalytic process.
Friday, November 8th, 2019 AT 5:12 AM