water leak

My mothers 74 imperial developed a water leak under dash. Upon finding it was a rust hole behind dash. The plenuim chamber collected leaves and dirt over the years aand caused rust out. Has anyone ever done repair in this rust out?

Roger Cooper <RCOOPER9@xxxxxxxxxxxxxxx> wrote:

Okay guys what do you call the part of the car below wind shield wipers that has either a wire or plastic screen acrossed it ,, what purpose other than hold the wiper does this chamber provide does it let fresh air into the car, does it have a drain in it at the far ends by the fenders? Any way when I spray water in this chamber directed at passenger side only I get a rather large water leak on my floor board this is a 74 Imperial what cause this problem you can not see in this area or get your hand in very far.!!! Oh yes the drain for this chamber at back of engine block is open

Roger Cooper