Do you need to drop the tank change a fuel pump in 2000 Chevy Malibu?

Generally, yes, you will need to drop the fuel tank to replace the fuel pump in a 2000 Chevy Malibu. There's not usually enough access from above to comfortably and safely remove and install the pump. However, some people have reported achieving this with extra maneuvering and specialized tools, but it's not the standard procedure and is significantly more challenging. Dropping the tank is the recommended and safer method.