Glen9010

Speedwagon I disconnected the line going from the tank to the evap can and fed air into the fuel filler neck. Used a rag to try and seal it from leaking. Used a hose to hold the flap open and pushed air down the hose. When I stopped air flow, I could hear and feel air come back up and out the hose in the filler neck. Didn't notice any air, or maybe just slightly, come out of line going to evap can. I don't think I can force air into the tank from the evap can line. The vent valve is the check valve that allows vapor flow one direction. I understand there is also an overfill shutoff valve in the tank that keeps fuel from going up the vent valve into the evap can. I suspect either of these could be my problem. May pull hose off of tank and try to "fish" a small hose or something into the tank and feel what it runs into. Thanks for the suggestion! Any other thoughts?

Just wondering if anyone has experience dropping a fuel tank out of a 2005 Legacy? Looks like the vent valve or fuel stop is stuck and will not allow air to vent while fuel filling. I have heard it is a miserable job. Looking for hints/suggestions/etc.

Lucky I think it is on top also. That poses an ugly situation. Can't just drop the tank and have a look. Just filled up and still slow. I could hear it vent back through the filler neck. Have to go so slow. Hard to get it completely full as the higher the level, the quicker the nozzle shuts off. Fuel just backs up in the neck. Has to be the vent. Is this valve replaceable or does this entail a tank replacement? YUCK!

So far, all lines appear to be clear. Have an ugly feeling the vent valve is in the tank. Haven't seen it on any exploded views of the tank area. A mechanic friend checked for any TSB or recall and nothing. He checked everything he could and didn't see anything out of the ordinary. Has never thrown a CEL. Doesn't look like any system that is ECU controlled. Solenoid valves, purge, etc. Anyone know for sure where the vent valve is located? Have read that it is spring loaded and opens when pressure in the tank, such as when filling, goes up, the pressure overcomes the spring pressure and lets air/fumes vent to the evap can. Any way to pressurize the tank to force the vent valve open?

2005 Legacy GT LImited - 58,000 miles Left the car in the driveway while we were gone on a week vacation. Very hot here, over 100 every day. Came home and after a few days, had to fill up. Almost wouldn't take fuel. Kept clicking off and fuel would accumulate in the neck. I tried several other pumps at various stations with same result. Have to fill sloooooowwwwwly. Hard to tell when it is full as it clicks off constantly. Here is what I have checked. Evap canister- removed and it appears perfect, no fuel and no clogs. Filler neck- removed and checked. Appears fine. All the lines I could get to seemed fine. As there are numerous ECU controlled valves, I assume it shouldn't be that as the ignition is off when filling up. On a diagram, I found a vent valve that should open when tank pressure goes up when fueling. I am not sure if this is in the tank. If this is stuck closed, it could cause this problem. D Does anyone have ideas and/or know where to find the vent valve? I'm afraid it is in the tank. The vent valve goes to the evap can. I am looking for any thoughts.