Can a blown head gasket cause smoke?
The most common sign of a blown head gasket is exhaust smoke. White smoke indicates that your car is burning coolant that is leaking into the cylinders.
Can you have a blown head gasket without white smoke?
Yes, it is most likely the intake manifold gasket leaking. If it is leaking out around the bolts, like King said above, then there will be no white smoke. It can also leak into the oil, and that will give you milky oil and possibly a high oil level.
Why do I have white smoke coming out of my head gasket?
It doesn’t take much, but if tis white smoke has beenn going on for months without coolant loss, I suspect youare right it isn’t the head gasket. In that case it must be either water in the gas tank or some kind of air/fuel mixture problem. But water in the gas tank usually causes all sorts of performance problems, so that’s unlikely.
Why does my car have a white smoke smell?
If the white smoke is coolant, your car is definitely having a crack in the cylinder head or a leaky head gasket, along with a sweet smell. In this situation, you can pressure test the cooling system if the coolant is low or the engine has been overheating. If it does not, your vehicle is mostly having a leaking gasket.
What does a blown head gasket look like?
If the leak is large enough you will notice white, sweet smelling smoke coming from your tail pipe, but if it is small, your exhaust may look normal. Also, if the leak is large enough, you may get water in your oil as the coolant seeps past your piston rings or if there is a gap in the gasket between an oil passage and the water jacket.
Why does the exhaust smell like burnt oil?
The exhaust will also have a burned oil smell. If the white smoke is coolant, your car is definitely having a crack in the cylinder head or a leaky head gasket, along with a sweet smell. In this situation, you can pressure test the cooling system if the coolant is low or the engine has been overheating.