Companies in the Engines-Diesel-Fuel Injection-Service & Repair industry specialize in repairing and maintaining diesel engines, specifically those with fuel injection systems. This industry is a subset of the General Automotive Repair Shops industry and focuses on the unique needs of diesel engines. Diesel engines are commonly used in heavy-duty vehicles such as trucks, buses, and construction equipment, making this industry essential for keeping these vehicles running smoothly. The services provided by companies in this industry include diagnosing and repairing issues with fuel injection systems, replacing fuel injectors, cleaning fuel filters, and performing routine maintenance on diesel engines. Technicians in this industry must have specialized knowledge of diesel engines and fuel injection systems, as well as the tools and equipment necessary to perform repairs and maintenance.