My GL unibody became an air pump

[bgd73]

I have always wanted to discuss this... I am approaching full oem repair with rust and holes. Yesterday in the cold, I did not hesitate to paint the back end of the wagon after more sheet metal and silicone sealer- it was going to get heated anyway. even with an open rocker it is still pumping air out of the holes that are left (very good sign)

Any tricks form a knowledgable source? I intentionally leave the rear quarters leaking near bumper (stays hidden) . It basically allowed for a more powerful heater, but even more importantly to me, it keeps the internal structure dry and clean when sealed nearly completely everywhere there is blue arrows flowing. The green dots are the problem areas for me and old soob wagons (rear quarters/fender well/ entire back end below tailgate). I have had to strengthen in front of rear bumper, as well as use different materials to determine this mystery flow... just hooking up the battery generates it minutely. It is intereresting..The flows get strong in the wagons due to no cold trunk. It explained to me why the same care on a wagon gets rust anyway near green dots- the flows internally like to get very powerful. My car is in a stage now where the few little holes left could blow out a lighter (after the heat has been on awhile)-

I am going to leave it there due to not knowing how long the unibody oem design was open- So far I have had the smells of a battery and antifreeze out the rear quarter... due to an open driver side rocker panel

The next few months will determine if it was too late for my rusty soob as these flows can spread poison as well as attempting to clean itself. Locally, I have seen some goofy things done with these flows once found.. anybody do something unique- perhaps with a bit of physics (it can even change a system ground)?

 

 

This drawing is freehand, and the question mark indicates an unknown connection (I am fairly certain it is open, but can't tell without ripping into decent metal)