Automotive-fluid replacement apparatus

An apparatus is provided for replacing the fluid employed in a vehicle component, and includes a bi-directional pump having first and second ports to which service, supply and drain lines are connected. The service line is connected to the first port and includes a free end adapted for receipt in the reservoir of the vehicle. The supply line is connected to the second port and includes a free end adapted for receipt in a replacement-fluid container. In addition the supply line includes a check valve that permits fluid flow in a direction toward the pump while preventing the flow of fluid in a direction away from the pump. The drain line is connected to the second port and includes a check valve that permits fluid flow in a direction away from the pump while preventing the flow of fluid in a direction toward the pump. A switch controls operation of the pump, and is movable between an "off" position in which the pump is off, a first "on" position in which the pump operates in a first direction forcing fluid from the first port to the second port so that fluid is drained from the reservoir, and a second "on" position in which the pump operates in a second direction forcing fluid from the second port to the first port so that fluid from the container is pumped into the reservoir. By cycling operation of the pump between the first and second "on" positions with the lines properly positioned, the fluid in the reservoir of the vehicle component is drained and replaced.