Originally Posted by pizzaguy
I think "collapsed" is the wrong term here - how can the fuel system (ANY PART OF IT) collapse a tank?
MAN, I sure read some weird stuff on here.
Collapsed is the correct word....it collapses due to the lack of atmosphere(a vacuum) inside a sealed container.
We use to replace a lot of them in Audis when a vent valve for the tank would stick shut and the fuel leaving the tank could not get replaced with air.