Gen Fuel Tank Vent?

[xcntrk]

I have a Fuzion 325 with dual fuel tanks, one for generator and one for fuel station. I appear to be having a venting issue (lack thereof) with the generator tank. It all started in noticing the tank creaking from expansion/contraction as the ambient temp changes. You literally hear hit pinging as it swells or shrinks. When I unscrew the fuel cap, it will often hiss or inrush air. All of this seems to imply the tank vent is nonexistent or not working. Anybody else have this problem???

[schmeg]

Mine made some creaking when I filled it the other day. We haven't owned the RV long enough yet to determine any venting issues.

[Prowler59]

Yes, my Raptor did that the first time I used it. I haven't had time to inspect it but as a temporary fix I left the gas cap barely on while the generator was running.

[Pull Toy]

Have you tried switching caps to see if the trouble follows?

Good luck,

[Desert185]

My toyhauler doesn't have a fuel tank, so I have not experienced this.

Sounds like a malfunctioning vent system. If its more convenient at this time, you could replace the existing fuel cap with a vented cap until the vent system issue is resolved. Take the cap to NAPA Auto parts and have them match it with a vented cap.