Abstract: An apparatus for adding coolant to a cooling system of a motor vehicle includes a cap with a resilient sleeve that expands against the inside wall of a radiator filler neck to provide an air-tight connection. A valve attached to the cap controls the flow of air and coolant through the cap. A gauge on the cap indicates the pressure inside the radiator. A venturi assembly connected to the valve provides a source of vacuum for evacuating air from the cooling system. Thereafter, coolant is drawn through the cap by the vacuum created in the system.

Abstract: An apparatus (22) for charging a pressurized system (24) comprising a lubricant canister (26). A facility (28) is for fluidly coupling the lubricant canister (26) to the pressurized system (24). An assemblage (30) is for forcing lubricant (32) out of the lubricant canister (26), through the fluidly coupling facility (28) and into a service valve (34) of the pressurized system (24).

Abstract: A coolant draining tool has a thermally insulating handle with a passageway therethrough. A curved drain tube is connected to the passageway and has an end portion with plurality of apertures for insertion into the cooling system of a motor vehicle. A hose coupling also is connected to the passageway for attaching the tool to a suction device to draw coolant from the cooling system.

Abstract: An apparatus for adding coolant to a cooling system of a motor vehicle includes a cap with a resilient sleeve that expands against the inside wall of a radiator filler neck to provide an air-tight connection. A valve attached to the cap controls the flow of air and coolant through the cap. A gauge on the cap indicates the pressure inside the radiator. A venturi assembly connected to the valve provides a source of vacuum for evacuating air from the cooling system. Thereafter, coolant is drawn through the cap by the vacuum created in the system.

Abstract: An apparatus includes a closed container having an inlet connected to a radiator of an engine cooling system. An outlet of the container is coupled to the suction port of a venturi that has an inlet port connected by a solenoid valve to a source of pressurized air. A controller opens the solenoid valve for a given interval whenever the engine is turned off. That action creates a negative pressure in the container which bleeds gas from the radiator. Any coolant that also is removed from the radiator is collected in the container.