Your destination for expert knowledge on popular car repairs.
Our encyclopedia was put together by our master mechanics, whose average experience is about 24 years.
By converting fuel into motion, the engine powers your vehicle. The key parts in an engine are spark plugs, valves, pistons, connecting rods, and the crankshaft.
Modern automotive braking systems combine leverage and multiplied hydraulic force to stop your vehicle. Once your foot presses the brake pedal, pressure is generated to slow or stop the vehicle.
The drivetrain is a system of components — the engine, transmission, driveshafts, geared differentials, and drive axles — working together to generate power and deliver it to the wheels.
When you switch on the ignition, turn on the radio, or operate the wipers, your vehicle's electrical system provides the power. It is composed of the charging, starting, computer, ignition, and lighting systems.
The exhaust and emissions systems reduce the amount of harmful gases produced by the engine and then safely route the remaining exhaust out of the vehicle.
Using thermodynamics and computer technology, the heating, ventilation, and air conditioning (HVAC) system helps keep the cabin temperature comfortable for occupants.