Resolved 1998 GST Gas Tank / Charcoal Canister Lines

[kyler021]

Hey guys,

I’m trying to figure out what to do with the lines for the charcoal canister. I’ll be honest I am not sure what all the lines went to in the first place since the tech at my shop took it out for me as I was in the middle of doing something else . I’m planning on keeping the canister in just so I don’t have to remove and weld/fab a plate that goes in place of the canister, but I am wondering what to do with the fittings on the canister. Should I put a line on them and route them towards the ground under the car? Or am I okay to leave the lines off and cap off the fittings? Would it be better to put nothing on the fittings and just leave them be? I couldn’t find anything on this before posting this so if anyone finds info on this please link it. Just to be clear I’m talking about the 3 fittings on the charcoal canister as seen in the picture.

Thanks everyone for the help!

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[BLACK'98DSM]

The canister is a solid assembly. Fully sealed and doesn't share any pressure or contents within the tank. So it wouldn't cause any short term issues if the ports are left open. With this being said, I would still cap off the fittings. Long term you could get moisture and debris trapped inside that could cause a hole to rust through and contaminate the fuel. I ended up making a block off plate for weight savings but ran it with open ports for a while first. I'm not anywhere near the rust belt though.

 

[kyler021]

The canister is a solid assembly. Fully sealed and doesn't share any pressure or contents within the tank. So it wouldn't cause any short term issues if the ports are left open. With this being said, I would still cap off the fittings. Long term you could get moisture and debris trapped inside that could cause a hole to rust through and contaminate the fuel. I ended up making a block off plate for weight savings but ran it with open ports for a while first. I'm not anywhere near the rust belt though.

I'm gonna go RTV those caps then and I should be good to go! Thank you for the detailed response man, I appreciate it!
-Kyle

 

[joshc]

Hey! I am so glad you made this post and I was able to find it because I am right where you were and this saved me so much time

With that being said, the other two valves/ports on the gas tank that you have hoses connected to, are you just venting those to atmosphere? Or are they connected to something else?

Also, for the filler neck, all of the small evap lines / fittings, did you cap those off too?

Cheers and thank you!

 

[kyler021]

Hey! I am so glad you made this post and I was able to find it because I am right where you were and this saved me so much time

Hey! I was the one that commented on your Facebook post in DSM Nation actually... small world

With that being said, the other two valves/ports on the gas tank that you have hoses connected to, are you just venting those to atmosphere? Or are they connected to something else?

I am pretty sure I connected those vent ports up like the factory. If I remember correctly I only capped off the charcoal canister ports.

Also, for the filler neck, all of the small evap lines / fittings, did you cap those off too?

I didn't cap anything on the filler neck off, all those lines are routed like the factory.

Glad to help out

Kyle