[pjmoreland]

About a week ago I got in my truck and started driving it. The engine was cold at that point. I drove about a mile and came to a stop light. As I slowed down to the sop light, my engine died, so I pulled off to the side of the road and opened the hood. There was gas streaming out of my carburetor onto the top of the intake manifold. I'm just asking for an engine fire here. I had my tools with me, so I popped the top of the carburetor off, and noticed that there were air bubbles blowing out of the fuel bowl float valve. I removed my gas cap, and a HUGE rush of air came out of the gas tank. I checked the carburetor again, and there were no longer any bubbles coming out of the carburetor. I did notice that the little bent wire piece that the float valve needle hangs on (Quadrajet) was missing, so the valve needle might not be seating properly. It didn't look like there was any dirt in the valve. I put the carburetor back together, and left the gas cap off. My truck started back up just fine as long as the gas cap was off. Once I put the gas cap back on, the problem occurred again. That's why I drilled a hole in the gas cap valve.

This afternoon the flooding problem occurred again, so that tells me pressure in the gas tank is not the problem since I still have a hole in my gas cap.

Tonight I will rebuild my carburetor. I'll see if that helps. I'm guessing that the fuel bowl float valve is just worn out. If that doesn't fix the problem, I'll replace the fuel pump. I suppose I should buy a fuel pressure gauge so I can see what the fuel pressure is.

Thanks for the ideas.