Post by
Mike G »
https://forums.nicoclub.com/mike-g-u62486.html
Tue Mar 04, 2008 8:26 am
I am still trying to familiarize myself with the details of these cars, BUT... I recently had a 2001 Pontiac Bonneville (yes, it was the supercharged SSEi) and those things were notorious for the rear sunroof drains leaking into the trunk. They were two-piece items that would get plugged at their exit point and back up the water to the middle joint where they would fill your trunk. Just some info, sorry I can't help more.
--Mike