Career opportunities -- Safety -- Automotive tools and test equipment -- Building an engine -- Design, construction, and application of engine components -- Engine classification, parts identification -- Engine size and performance measurements -- Electrical system fundamentals -- Computer systems -- Ignition systems -- Fuel injection systems -- Fuel and air supply systems -- Cooling systems -- Lubrication systems -- Exhaust systems -- Emission controls -- Charging and starting systems -- Chassis electrical -- Engine clutches -- Manual transmissions and transaxles -- Automatic transmissions and transaxles -- Axles and drives -- Four-wheel drive -- Brakes -- Suspension systems -- Steering systems -- Wheels and tires -- Wheel alignment -- Air conditioning and heating.