Possible issues as I see it:
As with the other comments, we don't know enough to offer any good input, other than what has already been stated: inspect the vehicle visually, and consider having it scanned for trouble codes.
- engine oil pan
- transmission cooling line
- transmission case
- exhaust pipe
- catalytic convertor
- resonator
- evap hose(s)
As with the other comments, we don't know enough to offer any good input, other than what has already been stated: inspect the vehicle visually, and consider having it scanned for trouble codes.