What Causes Excessive Black Smoke from Diesel Vehicles?

[SanKendra]

Reasons for black smoke from diesel vehicles: 1. Insufficient air supply: Excessive dust and particles in the air cause the filter element to accumulate a large amount of dirt and debris, leading to inadequate air supply. 2. Poor fuel supply: The use of low-quality diesel fuel results in carbon deposits after combustion, which can block the fuel lines, causing poor fuel supply and overly rich air-fuel mixture that generates black smoke. 3. Insufficient pressure: Wear and tear on valves, piston rings, and cylinder liners lead to inadequate compression pressure, failing to meet the required pressure and temperature, thereby worsening fuel combustion conditions. 4. Poor injector performance: Malfunctioning fuel injectors.