Can diesel filter cause black smoke?
Can diesel filter cause black smoke? Most common causes of black smoke from diesel engine include: Dirty air filter. The internal combustion process in diesel cars requires a certain mixture of fuel and air. The ratio of fuel and air should be proper, otherwise, the mixture will be too rich, which will result in black smoke. Why is there white smoke coming from my diesel engine? Diesels can also put out white smoke when fuel passes completely through the engine and reaches the exhaust without having been burned. This might be caused from the engine being too cool to burn...