"I found this site"? Hey Andy, you should have found that site a
week ago. Jon linked you to that web page which is on his site
very early in this discussion, that was on 05/13/15.
You guys are talking about an un-vented fuel tank on an AD,
right??? Vacuum in That tank should very quickly over come the
ability of the pump to supply fuel and the engine should die.
A stock AD fuel pump is only capable of supplying around 4psi.
As Allan posted and as Jon has warned on his site, a plugged
vent would work both ways, but I don't see how this could
be and ongoing problem for very long, nor do I understand how
anyone could get past the first tank of gas without the engine
stalling them along side the road from fuel starvation.
The only way an un-vented tank could build pressure would be
if the tank were filled and the truck not driven or only
driven a few blocks a then parked. If you drove it long
enough to completely warm the engine that should be plenty
of time to create enough vacuum to stop the flow of fuel.
dg
Last edited by Denny Graham; 05/21/2015 11:55 AM.
