Most likely a rotten vent hose or metal line.
Probably not going to be resolved without dropping the tank and inspecting every line.
You can take a peek at the upper side of the tank and then ends of some of the hoses by pulling back the trunk carpet and removing the rounded rectangular cover that is in the center of the trunk floor.
Probably not going to be resolved without dropping the tank and inspecting every line.
You can take a peek at the upper side of the tank and then ends of some of the hoses by pulling back the trunk carpet and removing the rounded rectangular cover that is in the center of the trunk floor.
