What would be causing what sulfur smelling exhaust smoke?

SOURCE: White smoke came from the exhaust pipe and the car killed in motion. I check all fluid levels were fine, once i started the care again and proceeded the accleration was a bit rough. After a few minute

white smoke mostly is caused by over fueling so what i suggest you do is first of all check if there is no leak on the injectors and if there is none which means your valve sterm seals are damaged.When the head gasket is blown out you may have problems like :-loosing power when driving,over heating,idling problems and oil mixing with water, its not your head gasket.

SOURCE: engine idles OK and normal, but when accelerate,

Go with the head gasket or at least intake gasket

SOURCE: My car started smelling funny...pulled over lifted

You can tell by looking at dip stick if the oil has a creamy white substance there is antifreeze getting in oil (blown head gasket) or if ther is excessive white smoke coming from exhaust pipe upon acceleration. steam from under hood may be a coolant leak from a rubber hose or it may be leaking from the cylinder head onto the exhaust manifold also the car will be using up antifreeze.

SOURCE: white smoke

Sound most likely like a head gasket - Check your coolant level and if low it is possible that coolant is entering into the engine. I would not driving the vehicle as driving the engine would cause more damage.

SOURCE: have a 3.0 liter v6

sounds like a head gasket to me, check the oil and see if there are any signs of water contamination ( milky looking oil -- but this is not always the case ). if the gasket failed between the water jacket and the cylinder then you will just get the ' white smoke '( steam ) coming from the exhaust pipe,, do not run the truck until this is fixed as this can also cause cylinder and rod damage.

c...