ok yet another problem. I am having a problem with my coolant devloping pressure when ever i start the car. I am trying to figure out if it is just an air bubble or what. if I have the rad. cap all the way on and the vent plug closed and start the car the rad. cap starts to vent the pressure off, and if i have the rad. cap open one click it starts pumping coolant out. any ideas? In case you dont know i recently did a hg swap. HELP wife is getting very annoyed that the car STILL is not running.