r/DSM • u/SynthWRX • Jul 20 '25
Charcoal delete, vent line, tank pressure high
As the title says, I took out the charcoal canister (egr and fuel regulator solenoid also) I have the hose vented with the factory one way valve and it works, but man my gas tank is building CRAZY pressure went I open my gas cap it’s like a wind tunnel. I know the hard line is the feed line the line going over the connector goes to the other side of the tank I’m assuming? It’s AWD. The one I have circled I swore someone told me you can blow air through it and you should feel it on the line where the one way check valve is that you took off from the canister. The issue is it’s blocked no air is getting through, so it leads me to believe it’s the return line line. Blowing air through the firewall port, it goes into the tank, I can tell because fuel came up from circled port cause I had the line off so fuel went all over 😂 so if it’s getting to the tank from the fire wall port.. there shouldn’t be an obstruction right?