Saturn uses an electric fuel pump that is mounted INSIDE the fuel tank.
One - and it is inside the fuel tank.
Forward of the fuel tank
Almost all fuel pumps are located in the gas tank.
It has 1 fuel pump in each fuel tank. Some trucks have duel tanks.
The XJR model has two fuel pumps due to it having a supercharger. The XJ8 model has only one. They are both tank mounted.
Fuel pumps on Astros are in the gas tank. You have to drop the tank to change them.
GM vehicles are not equipped with a fuel pump inertia switch.
See link below
Yes, there are many different types. All gasoline fuel injected vehicles use electric fuel pumps.
You can purchase a fuel pump for your 2000 Saturn at the following address: http://www.partsamerica.com/ProductList.aspx?parttype=52&ptset=A&searchfor=Fuel+Pump There are plenty of other places to purchase fuel pumps on the internet.
Yes it is returnless and the pump regulator is integrated into the fuel filter.
NO, The PSI on both pumps are different. Won't interchange.