What is the color of smoke?
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 causes a vehicle to smoke?
The most common cause of smoke under the hood is small amounts of motor oil or other fluids accidentally spilled or leaking from a bad gasket or seal onto a hot engine or the exhaust system. Those other fluids may include engine coolant, power steering, brake and transmission fluid, even window washer solvent.
What causes blue smoke when starting a car?
When a car is producing blue smoke it means oil is getting into the combustion chamber for one reason or another and being burnt along with the normal gasoline. This creates a blue colored smoke which is passed down the exhaust system and then exits the car along with normal gases.
Why is my car smoking from under the hood?
Older engines produce more hot spots, which make the car smoking under hood but not overheating. Worn out piston rings and clogged PCV tube or valve are the culprits that cause this smoking issue. The timeworn rings make the pistons to siphon fuel into the cylinder where it burns and creates smoke.
Why is my car smoking from the exhaust pipe?
Causes of White Smoke Coming from the Exhaust Pipe Condensation. The most common reason for white smoke from the exhaust pipe is condensed water that is getting vaporized. Leaking Intake Manifold Gasket. Now we are coming to a little bit more serious problem, but not too bad. Bad EGR Cooler. Blown Head Gasket. Cracked Cylinder Head or Block. Too Rich Fuel Mixture.
Why is smoke coming from my car?
The most common cause of smoke under the hood is small amounts of motor oil or other fluids accidentally spilled or leaking from a bad gasket or seal onto a hot engine or the exhaust system. Those other fluids may include engine coolant, power steering, brake and transmission fluid, even window washer solvent.