Written in and for the 21st century, this comprehensive book is divided into chapters that correspond to the content area of certification as specified by the National Institute for Automotive Service Excellence (ASE) and the National Automotive Technicians Education Foundation (NATEF). The content area of all ASE material certification is listed in the objectives at the beginning of each chapter and all laboratory worksheets are correlated to the NATEF Task List. Terminology throughout reflects the SAE J-1930 standard. Engine Operation, Parts, and Specifications; Engine Condition Diagnosis; Engine Cooling System Operation and Diagnosis; Engine Lubrication System Operation and Diagnosis; Digital Meters and Oscilloscopes; Starting and Charging Systems Diagnosis; Ignition System Components and Operation; Ignition System Diagnosis and Service; Computer Fundamentals; Computer Sensor Operation, Diagnosis, and Service; Engine Fuels and Combustion; Computerized Carburetor Operation, Diagnosis, and Service; Electronic Fuel-Injection Operation, Diagnosis, and Service; Emission Control Device Operation, Diagnosis, and Service; On-Board Diagnostics II; Engine Performance Diagnosis and Testing. For service technicians.