A belt connecting the crankshaft to your engine drives the water pump. This pump rotates to circulate fluid to your running engine.
The water pump circulates to send the fluids along the outside of the pump while it spins, drawing its fluids from the center, which passes through the radiator to the pump vanes. The pump vanes then pass the fluids through into the engine.
The fluid then circles back from the engine block, to the radiator, and back into the water pump.
If you experience leaking fluids or engine overheated, your water pump losing coolant may cause problems. Driving on an over-heated engine is very dangerous and can cause more engine or cooling system issues.
Your fuel pump is plunged inside the fuel tank and connected by a fuel pump sump that holds fuel near the opening. A connector and fuel tube is used to supply power and connect the pump with the top of the tank.
The fuel pump body is mounted by an electric motor to a smaller pump, which carries gas and pushes the fuel system. A fuel level sender is then attached to the pump housing sending information back to the computer.
A filter adds protection to the fuel by cleansing before moving into the fuel injection system.
There are several clues to look for to determine if your fuel pump is working efficiently. If you notice a slower takeoff or problems with an incline, your pump may not be able to keep up with the additional fuel needed. This could also lead to sputtering as if you have run out of gas.