Carbon canister leaking

[Steven Rodriguez]

I have a 87 gmc sierra with a tbi conversuon It has a fuel port a middle port that i plugged because thats were it leaked from and a double over under port that seems to be a vacuum line is it ok to plug the middle port

 

[Rusty Nail]

No?

 

[Steven Rodriguez]

No

 

[Steven Rodriguez]

Im sure the carbon canister is ruined but i want to solve the problem before replacing

 

[Steven Rodriguez]

What could be causing the over flow bad line i just bought the truck and noticed on the gas tank I'm using has a gas cap that doesnt seal properly when i switched to the gas cap that does seal caused the tank to pressure up any advice could help i have a gas water heater and don't want to admit gas into the atmosphere

 

[Charlie]

 

[bedwards]

Your not supposed to get liquid gas in the canister, just vapors. Something is allowing gas from the tanks through the lines into the canister. On my truck, the selector valve hung and allowed gas from one tank to be pumped into the other until it was full and then into the vapor lines into the canister and all the way up to the carb vent and into the carb. Once you find that and fix it, you can get a new canister from RockAuto cheap and fix it right.

 

[Steven Rodriguez]

THANKS BRYAN