yup, housing on the fuel pump. check that
also, chuck/choke the front wheels and lift the car up by the bottom of the diff and check the exhaust and that area.

note, please make sure you put blocks in front of your front wheels when you do this! Very very costly damage if you don't as another member here on the board recently found out. Only difference is he had his wheels off and lost a bumper

 

Believe it or not, that was the OP