What is a potential consequence of soot buildup in a diesel engine?

Soot buildup in a diesel engine can lead to restrictions in airflow, which is critical for proper engine performance. When soot accumulates, particularly in areas like the intake manifold or air filters, it inhibits the ability of the engine to receive the necessary amount of air for combustion. This restriction can result in poor combustion efficiency, reduced power output, and increased emissions due to incomplete burning of fuel. Proper airflow is essential for maintaining an optimal air-fuel mixture; any obstruction can significantly affect the engine's overall function and longevity. Maintaining clean components is vital to ensure that airflow remains unrestricted, promoting efficiency and performance in diesel engines.