What causes white smoke and a burning smell from the engine?
1 Answers
White smoke and a burning smell from the engine may be caused by oil leakage from the valve seals, leading to excessive temperature at the exhaust pipe, resulting in reddening and a burnt odor. The specific reasons for white smoke and a burning smell from the engine are as follows: 1. Exhaust pipe-related issues; Oil dripping onto the exhaust pipe, or electrical wires or other plastic materials touching the exhaust pipe, causing white smoke due to high temperature from the radiator. 2. Engine-related issues; It could be due to the engine burning oil or excessive carbon buildup in the engine. It is recommended that the owner promptly take the vehicle to a repair shop for inspection and repair. If the engine temperature is too low, there is water in the fuel system, or moisture in the fuel or combustion chamber, the water is heated by the combustion heat in the cylinder into steam, which is expelled from the exhaust pipe, forming white smoke. 3. Injection timing-related issues; If the injection timing is too late, as the injection occurs when the cylinder temperature has already dropped, some fuel does not burn and turns into oil vapor, resulting in white smoke. Poor nozzle atomization leads to incomplete fuel combustion, and the unburned fuel combines with the high-temperature exhaust gases from normally operating cylinders in the exhaust pipe, causing white smoke. Check if there is anything on the exhaust pipe or if replaced parts are properly installed. If there is a burning smell when not starting or accelerating, it may be due to incomplete engagement between the clutch plate and the flywheel.
