Blown head gasket and/or cracked head.
It might be coolant, oil burning or too rich of fuel air mixture
Losing coolant with no apparent leaks, White smoke out the exhaust that has a sweet smell to it,
A fuel leak. A coolant leak, coolant has a sweet smell. An exhaust leak. A burnt clutch. A burnt rubber smell, from a slipping accessory belt/tensioner or rubber contacting the exhaust. A Moldy smell with the A/C on from a dirty/moldy evaporator. An oil leak, if it is leaking near the exhaust manifold, from say the valve cover. A smell from burnt brakes from a faulty brake caliper. A burnt plastic smell, from plastic melting against the exhaust( wiring loom, or plastic bag on catalytic converter). A. mildew smell caused by a water leak, clogged evap case drain, flogged sunroof drain.
On some vehicles, coolant flows through the intake plenum. A leak or cracked plenum will allow coolant to enter the combustion chamber. Whatever the cause, you need to stop driving this vehicle until this is fixed. Serious engine damage will occur if you indeed do have coolant entering the combustion chamber. Now, if you never have to add coolant to the system, then you may just be seeing normal condensation during cold temperatures. Without seeing or smelling the exhaust, it is hard to say. If it is coolant the exhaust will smell sweet.
Could be overheated coolant or just leaked oil burning off your exhaust headers
Maybe the heater core is leaking.
Engine oil mixing with coolant and/or coolant mixing with engine oil.Losing coolant but don't see any leaks. White smoke (steam) coming out the exhaust that has a sweet smell to it.
That could be a leaking exhaust system. A leaking exhaust system is very dangerous! Please have it checked out ASAP.
sounds like u slipped on the gasket or u have another leak. r u loosing coolant still? coolant usually only smells when driping on hot exhaust.
if you smell coolant and your windows are fogged possibly it could be the heater core.
Might be a leaky heater core, the anti freeze in the coolant has a sweet smell/taste.