Knowledge of various techniques for removing, replacing, cleaning, and installing a variety of parts, components, and accessories such as filters, radiators, engine thermostats, wheel cylinders, universal joints, wheel bearings, springs, shock absorbers, mufflers, components of heating and air conditioning systems, brake components, catalytic converters, clutch assemblies, carburetors, and suspension components including lower control arms, struts, constant velocity joints and stabilizer arms. Makes repairs that can be accomplished by removing, replacing, adjusting, or cleaning defective automotive parts or components such as replacing sensors, water pumps, spark plugs, brake shoes, mufflers, radiator caps, condensers, engine gaskets, and a variety of belts and hoses.