That depends on what is leaking and your going to have to determine that. You will probably have to remove the tank to find out.

Answered by Wrenchtech (expert)
14,743 answers provided

Hi guys. It's common for the pump assembly, actually the rubber gasket, to leak if the huge plastic nut isn't tightened all the way. There's an arrow molded into the tank and one on the nut. If they are not lined up, even by a couple of inches, it won't seal.

caradiodoc

Answered by caradiodoc (expert)
17,308 answers provided

As I said, your likely going to have to remove the tank to find out what is leaking. It depends when it leaks the most, during filling, only when the tank is full or only when the engine is running. All would point to different things.

Answered by Wrenchtech (expert)
14,743 answers provided