Leaking Gas from Charcoal cannister

My 2005 Tahoe had a fuel leak. I took it to a friend of mine who saw the leak coming from the top of the rusted out fuel pump. He dropped the tank and replaced the pump. We added some gas to the tank and it will not start. We tried to bleed the line and nothing is coming through. He looked under the truck for more leaks and sure enough there is gas coming out of the charcoal canister now. Any idea what is happening? A kinked line? I thought possibly he had the lines mixed up but he said not possible as each line connector is a different size. Help! :)