Diesel Technology · Texas
Diesel Technology colleges in Texas
Diesel Technology program coverage in Texas is being verified. Use the filter-first search at /results to find related programs offered in the state.
Diesel Technology trains you to diagnose, service, and overhaul the diesel engines, fuel-injection systems, and powertrains in heavy trucks, buses, and off-road equipment.
We're still verifying Diesel Technology programs in Texas. Try a broader search at /results?q=Diesel Technology or browse all colleges in Texas.
What you'll study in a Diesel Technology program
- Diesel engine theory, including four-stroke compression ignition, fuel timing, and engine rebuild and overhaul procedures
- High-pressure fuel-injection systems such as common-rail, unit injectors, and mechanical and electronic governors
- Turbocharging, intercooling, exhaust gas recirculation, and intake and air-management diagnostics
- Diesel exhaust aftertreatment: diesel particulate filters, selective catalytic reduction, and diesel exhaust fluid systems and regeneration
- Reading fault codes and electronic data over J1939 and J1708 networks using OEM diagnostic software
- Heavy-duty drivetrains: clutches, manual and automated transmissions, differentials, and driveline service
- Air brake systems, foundation brakes, and inspection to commercial vehicle standards
- Hydraulics, electrical and charging systems, batteries, and starting circuits on heavy equipment
- Shop safety, lockout/tagout, and lifting and supporting heavy vehicles and components
Where a Diesel Technology degree can lead
- Diesel mechanic
- Diesel engine specialist
- Truck and bus mechanic
- Heavy equipment mechanic
- Fleet maintenance technician
- Mobile diesel service technician
Typical pay: Early-career wages vary by employer, region, and experience (BLS, 2024 bus and truck mechanics and diesel engine specialists median $60,640).
A Diesel Technology program centers on the compression-ignition engines that power Class 8 trucks, transit buses, locomotives, marine craft, construction iron, and standby generators. Coursework moves through diesel engine theory, common-rail and unit-injector fuel systems, turbochargers and intercoolers, and the diesel exhaust aftertreatment that keeps engines compliant, including diesel particulate filters, selective catalytic reduction, and diesel exhaust fluid. You learn to read fault codes over J1939 and J1708 data networks, run guided diagnostics in OEM software such as Cummins INSITE or Detroit Diesel DDDL, and service heavy-duty drivetrains, air brakes, and hydraulics. Where Automotive Technology focuses on the gasoline engines and lighter systems of cars and light trucks, this program works at the scale and pressures of heavy diesel equipment.
Most students enter through a community college or trade-school certificate or associate program, then build experience in fleet shops, dealerships, transit agencies, or construction and agriculture equipment dealers. Many employers value the National Institute for Automotive Service Excellence (ASE) Medium/Heavy Truck (T-series) certifications, and federal EPA Section 609 covers air-conditioning refrigerant handling; some roles ask for a commercial driver's license to road-test vehicles. Apprenticeships and manufacturer training paths are common, and technicians often specialize over time in engines, electrical, or aftertreatment. Pay, demand, and the equipment you see vary by employer, region, and industry, and emissions and electrified-drivetrain technology keep changing. A program is preparation and a foundation for credentials, not a guarantee of any particular job or wage.
In federal data for the closely related occupation of bus and truck mechanics and diesel engine specialists, the U.S. Bureau of Labor Statistics reports a 2024 median wage of $60,640 and projects employment to grow about 2.4% from 2024 to 2034; a high school diploma or equivalent is the typical entry-level education for that occupation. National figures are occupation-wide medians across all experience levels, not starting wages or graduate outcomes.
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