Fuel gurgling after hot shutdown

[Constant Mesh]

My '04 often exhibits a boiling or gurgling sound from the fuel tank after a hot shutdown in the heat of the summer.

I assume it's from fuel boiling in the fuel rail, bubbling out through the pressure regulator and returning to the tank.

I'm curious if the '06 and later FJRs exhibit this boiling, gurgling phenomenon.

I assume that the fuel has no way out of the fuel rail for these newer FJRs. The pressure regulator is back at the pump. Also the check valve at the pump would prevent any back-flow from the rail.

My tank's vent is open and working properly. I typically smell gas fumes from the tank after a hot shutdown. The gurgling occurs with both a closed & opened fuel cap so it's not a pressure issue in the tank.

For the Gen I fuel system there is a constant flow of fuel from the pump to the rail, through the regulator and back to the tank. Obviously when the engine is warm and idling it's using the minimum quantity of fuel so there is maximum flow through the regulator back to the tank.

 

[stose85]

I do get some smells from gas fumes around the bike after shutdown but definitely no gurgles. I've been up to 108F and rode across the plains several hundred miles in a day at 103F.

 

[wheatonFJR]

Ask HotRodZilla...

Sorry, hope you find out what the issue is.

 

[RaYzerman19]

Gen1's had no insulating pad between the engine and tank like later years did....... not sure if that's your issue, but could be. If so, it would happen moreso on an almost empty tank vs. a fuller tank.

 

[Ignacio]

My '04 often exhibits a boiling or gurgling sound from the fuel tank after a hot shutdown in the heat of the summer.

Dude! YOU already brought up the same same topic in 2014. Found it in about 8 seconds searching on the word "Gurgling"..as well as a bunch of the others.

Don't start another thread...use your existing one at very least!!!