What Causes Black Smoke and Insufficient Power in Diesel Vehicles?

[ArianaDella]

Diesel vehicles emitting black smoke with insufficient power may result from the following reasons: 1. Clogged air filter: Exhaust valve leakage, clogged air filter, poor fuel injector atomization, and injector dripping can lead to incomplete fuel combustion, causing black smoke. 2. Overly rich combustible mixture: An excessively rich air-fuel mixture, excessive engine oil in the fuel, water in the fuel, or faulty spark plugs can result in insufficient power and black smoke emissions. 3. Incorrect fuel-oil mixture ratio: An improper ratio of mixed fuel to engine oil or using the wrong type of engine oil. If the mixed fuel contains too much engine oil or the oil quality is poor, the engine oil in the combustible mixture cannot burn completely, leading to insufficient power and black smoke emissions.