300 cd Injector Line Leak... Now Ugly Knock

[alyssak78]

Okay... take a picture of this.

Girlfriend drives around the block to the store. When she starts the car to return home ugly knocking starts. Upon her immediate return (short trip, less than a mile) I discover fuel line leak at the injector side. Replaced brass line, still knocking. Sounds bad, feels bad, is this bad?

Could the leak have killed the injector? Could it have created an instant bad valve?

Any help most appreciated!