What causes white exhaust smoke?

If your exhaust system is producing a thick, white smoke – you may have a problem. Many times, this thick smoke is due to the likes of a blown head gasket, damaged cylinder, or a cracked engine block, which is causing coolant to burn.

Do new piston rings smoke?

But, as the engine warms up; the pistons and rings expand, and start to seal the cylinder walls. As a result, reducing how much oil is blowing past the rings. Eventually, the piston rings wear to the point that there is constant blow-by. So, the engine smokes all the time.

Will a misfire cause white smoke?

The misfire alone is not enough to deem a blown head gasket. The fact that you have the white smoke present along with the misfire is sound evidence that this is the case. The white smoke means you are burning engine coolant inside the engine. The vehicle is likely cutting off due to high engine temperatures.

Is it bad if white smoke comes out of exhaust?

Thick white smoke coming out of the exhaust typically indicates a blown head gasket, a crack in the head, or a crack in the engine block. Cracks and bad gaskets allow the fluid to travel to places it shouldn’t be. If it travels, then the problems begin.

Can bad piston rings cause smoke?

When you have bad piston rings or the valves, cylinder walls, or a head gasket leak, the vehicle engine will stall causing misfiring. You will notice white smoke from the engine that means that the worn-out and damaged piston rings can no longer seal the cylinder adequately.

How can you tell if piston rings are bad?

When drivers notice excessive oil consumption, white or gray exhaust smoke, poor acceleration, and/or overall loss of power or poor engine performance, they may be seeing signs of worn piston rings.

Why is my car smoking white but not overheating?

The most common answer to, “Why is my car smoking but not overheating?” is that there’s a type of fluid that’s landed on the engine. This can be motor oil, fuel, transmission fluid, coolant, or even condensation. It can cause your engine to smoke because it’s burning off that fluid from the engine.