How do I stop vapor lock?

Thanks,

I will go read up on the manual. I am not sure if there is something that goes between the vent tube connected to the filler tube and the vent tube assembly. Is the vent tube assembly a functioning part that has some sort of valve in it? Like a one way or something? Or is there some sort of functioning part between the vent tube connected to the filler tube and the vent tube assembly?

I will go look at the manual. If it is a PDF I will save it for future reference.

Thanks again,
I just hope this problem isn't due to a clogged sock on the end of the sending unit tube. I had a crapped out fuel filter that had only been on there "Maybe" 1000 miles, if that, and I have gone about 800 or more with the clear filter and haven't had one spec of anything in it yet. Very suspicious.