Do you have to take down the fuel tank install pump on a Saturn sl2 2000?

No, you generally do not have to remove the fuel tank to install an in-tank fuel pump on a 2000 Saturn SL2. The fuel pump assembly is usually accessed through an access panel located under the rear passenger seat or in the trunk. You'll need to drop the fuel tank's access panel to reach the pump. However, in some rare cases, due to rust or other damage, access may be difficult, requiring more extensive work, but full tank removal isn't typical for this repair.