What Causes Smoke from a Car Engine?
1 Answers
Car engine smoke can be caused by: 1. A small fuel injection advance angle leading to incomplete combustion; 2. Minor water leakage in the cylinder liner or water present in the fuel; 3. White smoke during cold starts that disappears as the engine warms up; 4. Air-fuel ratio imbalance, decreased cylinder pressure, premature fuel injection timing, or failure of the smoke limiter on the fuel injection pump; 5. Malfunctioning exhaust brake system; 6. Engine burning oil; 7. Wear of engine cylinder liners, stuck piston rings, misalignment, aging and deformation of valve seals, excessive valve guide clearance; 8. Engine oil entering the cylinder through the intake tract.