Hey guys, i have a major water leak im investigating.

Major water in back passanger side floor that appears to move forward towards front passenger half way but not all the way through the whole front carpet.

Not sure could be the other way around also.

Thanks Guys

Finding water leaks can be difficult. Have you tried running water over the exterior of the doors, to potentially discover a leak caused by door seals?

Check out your rear door seals, as Mike said "Bonneville'* are notorious for the rear door seals to shrink/pull away from the frame and allow water to get in."

Read this not from my favv source, but will help you get an idea where leaks can come from.
I was trying to find GMs guide, but could not find it...

https://haynes.com/en-us/tips-tutori...leaks-your-car

William...I like that car leak link, going to bookmark that one.
So far Mike has not participated in this thread, 'Art" has though..

That saying was what Mike said in a previous thread.

Glad it may be a bit helpful.