thanks, appreciate your help with this and other issues I've had in the past. The bubbling/boiling is with the car off. I had a feeling my bottom was too lean, I'm gonna start with that, thanks.

Also, the moisture discussed in the exhaust line is not in the tubing , but on the tank cap itself, the cap is is made up of two parts, the top section swivels allowing you to change the direction of the inlet. That section is not air tight, I have two brand new tanks that are airtight but im just curious to know how this would affect things.