White smoke coming from engine

What can cause white smoke in a warm engine? Why would a car blow white smoke? Internal combustion engines burn a mixture of air and gasoline to move the car.

In this case, bad seals or piston rings cause oil to leak into combustion chamber which then mixes with fuel and burns. The result is a white or light bluish smoke that comes out from exhaust manifold. Or maybe you completely forgot to add coolant at all, and the engine overheated. Not that anyone would ever do that. The oil filler cap in almost all the engines releases a faint whiff of smoke , which is a residue of the burnt fuel inside the engine.

Older engines produce more hot spots, which make the car smoking under hood but not overheating. White smoke= blown cylinder head gasket. Coolant is entering the cylinder and is being burned along with fuel. Over time your volume of engine coolant decreases hence the reason the reason you are refilling every few days.

Also change the oil as well as you might coolant in the oil as well. One of the main causes of white exhaust smoke and coolant loss is a cracked or warped cylinder hea a cracked engine block, or head gasket failure caused by overheating. A cracked head may allow coolant to leak into one or more cylinders or into the combustion chamber of the engine.

It also causes the engine to overheat again because hot gases are getting into the cooling system. In transmission fluid case, the engine is sucking the fluid through a vacuum hose, which leads to the color white from smoke. The exhaust will also have a burned oil smell. In this case the coolant would end up being heated in the combustion chambers and blown out the exhaust as the engine starts. If the white smoke is coolant,.

Blue or white smoke coming from your engine usually indicates burning oil, which can be caused by: Overfilling the crankcase with oil. Operating engine at greater than a degree angle. Inoperative crankcase breather. Then after about seconds to a minute, the white smoke should clear up. If white smoke continues to come out of your exhaust while the car is running, there are other issues at fault.

One cause of white smoke from the exhaust might be the engine leaking coolant. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. Now this isn’t always the case, but after some trouble shooting we’re usually the go-to shop when diesel drivers need refurbishe rebuilt, or new injectors. As the engine warms up and the condensation dissipates the white exhaust smoke (steam) is no longer.

While the engine is smoking, hold your hand over the exhaust outlet for seconds or so. Don’t restrict the exhaust, just attempt to coat your fingers with the smoke. Then hold your hand up close to your face. The white smoke is the engine burning off all the excess oil.

The fix - drain the excessive oil, and idle the engine until the smoke clears. Depending on your mower type, draining the oil can be a pain in the ass. This may take minutes or so. The black smoke may show there is a return fuel line which is obstructed.

If your engine puffs out an occasional stream of white smoke , it could be steam coming from your coolant overflow tank. Leaking and burning transmission fluid and power steering fluid will also create a cloud of smoke similar to an engine oil leak, but with a slightly more chemical aroma.