Exhaust engine smoke and gas smells can be caused by several factors, including incomplete combustion of fuel, oil leaks, or a malfunctioning engine component. Blue smoke typically indicates burning oil, while black smoke suggests excess fuel is being burned. Additionally, a rich fuel mixture or a failing catalytic converter can contribute to strong gas odors in the exhaust. Regular maintenance and timely repairs are essential to mitigate these issues.
if it is white smoke engine need to rebuilt.
Sorry to tell you but you have a blown head gasket, cracked head, or both. The white smoke is coolant entering the combustion chamber. STOP driving this vehicle or you will destroy the engine. You must have this repaired and it is not cheap.
grey exhaust smoke is caused by your engine burning oil during the combustion process. this could be caused by a piston ring that doesnt properly seal, or another leak in your engine.
If the smoke is black it could be caused by a faulty fuel pressure regulator which could be causing the engine to get too much fuel.
White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.
A gasoline smell combined with white exhaust smoke typically indicates an issue with the engine, often related to fuel or oil mixing with coolant. This can occur due to a blown head gasket, which allows coolant to enter the combustion chamber, resulting in white smoke. Additionally, fuel system problems, such as a malfunctioning fuel injector, can cause unburned gasoline to exit through the exhaust. It's advisable to have the vehicle inspected by a mechanic to diagnose and address the underlying issue.
Find and fix exhaust leak
Black smoke coming out of the exhaust of a car is usually due to oil being burned in the engine's cylinders. This can be caused by a worn piston ring or rings.
Service engine
Injectors, timing, low cylinder pressure.
Burning oil
Engine exhaust turns white from water in the combustion chamber.