Why does my car smoke in the morning?
A little bit of white smoke from the exhaust on a cold morning can just mean steam, and is fairly normal. There are three colours of smoke that commonly indicate a problem with the engine, and you should take notice if your car starts to produce excess smoke.
Why does car smoke when first started?
But when there’s a breach — like a blown head gasket — the coolant, which is under high pressure, will seep into one or more of the cylinders after you turn off the engine. Then, when you restart the engine, that coolant gets combusted, along with the gasoline and air. And that makes white smoke.
Is Blue Smoke bad?
Blue smoke can often look like grey smoke at first. But if you notice a distinctive bluish tint, it may signal that the engine is burning lots of oil. This could be due to worn engine components like piston rings, valve seals, or PCV (Positive Crankcase Ventilation) valves.
Can a bad catalytic converter cause blue smoke?
This unburned gas can also cause damage to your catalytic converter as well as your oxygen sensor. Now the sad part is the blue smoke you asked about. Blue smoke is engine oil being burnt in the combustion chamber with your gas and air mix. No major engine disassembly will be necessary.
Why do I have blue smoke coming from exhaust?
Blue Smoke From Tailpipe A blue or grey colored smoke is typically caused by an engine that’s burning a significant amount of oil. If you’re lucky, this can be caused by a blocked PCV valve, which can start sucking oil into the engine. Fixing this problem is typically as easy as replacing that valve with a new one.
What do different colors of smoke mean?
The color of the smoke depends on the material that is burning. Natural materials such as unfinished wood will change to tan or brown colored smoke, whereas plastics and painted surfaces appear to be grey in color. However, black smoke can appear grey when it is mixed with moisture from other heated materials.
What does it mean when there’s smoke coming out of the exhaust?
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. Thick white exhaust smoke usually indicates a coolant leak, which could cause overheating and put your engine at a serious risk of damage.