Ford 2003 Mustang Workshop Manual page 3377

the oil pan clips.
10. NOTE: 4.6L 4V shown; 3.8L and 4.6L 2V similar.
Disconnect the oil pressure sender unit electrical connector.
11. CAUTION: Failure to tighten the negative cable ground nut may cause ground
circuit failure or arcing.
NOTE: 4.6L 2V shown; 3.8L and 4.6L 4V similar.
Remove the battery ground cable nut at the engine block.
12. Remove the nut and disconnect the generator electrical connections.
Position the cover aside.