depends if it a metal line or the plastic line. if it's metal you can use union fittings and a short pice of the same size line., if it's plastic then your screwed, you will need to replace the entire thing.
You will have to take your car to a garage to get your EVAP system leak tested. Then replace the defective line.
Fix it.
You have to determine the source of the leak then decide on how to fix it.
You cant
depends where the leak is. In the brake line or at the pump? electric or mech brakes? if its in the line you should be able to replace the line section
You have to replace it. They are designed to leak when they are going bad.
replace brake line
Get a new car
Look for a vacuum leak.
Find and fix exhaust leak
your drain line for your ac evaporator core is plugged up. A service station can blow this out for you.
yeah