i had the same problem and i found out that my fuel lines where mixed up and/or your overflow screw may be on so try tightening that
fix the leak
Fix it.
what would it cost to fix a leak in a 7.3l fuel heater
Best bet in any fuel tank leak is to have the tank replaced
You'll first need to determine where the fuel leak is coming from and then replace or repair the leaking component .
Depends on where the leak is located, and how much labor will go into fixing it.
Find the leak and fix it.
Look inside the car above the fuel pump for an access panel. If there is none, you will have to drop the fuel tank to fix the leak if the leak is at the fuel pump. You need to determine exactly where it is leaking.
Find where the leak is. Then seal it. The sealing may take different forms depending on where the leak is.
Every once in a while it will fix your evap leak if you replace the fuel cap, but usually the leak is somewhere else. A good repair facillity will have a smoke machine that can be used to fill the system with smoke and locate the leak by seeing where the smoke comes out.
Check your fuel lines for a leak.
you have a gas hoseline or other type leak. fix it!