On my 1997 Buick Park Avenue the A/C air blows fine out of the dash (top) vents, but not out of the floor vents or the mid level in-dash vents. I don't believe the in-cabin A/C filters have been changed since the car was new and don't know exactly if that is the problem, but am willing to install new filters to see if that is perhaps the problem.

I need to know how exactly with diagrams if possible, do I change the in-cabin air conditioner filters.

The Owner's Manual says they are located next to the accelerator pedal to the right, but there are several panels there with some having electrical or thermo sensors attached with wires. I need to know which panels I have to remove to get to the filters and how I get to them after the right panel(s) is/are removed.

Thanks!
Al albarrs@wfeca.net
Al Barrs

I don’t have any specifics as to how to replace this particular filter and it never hurts too replace these filters but all incoming air goes through it. So if you have adequate air flow through certain vents then it’s a distribution problem not filter. As to what I’m also not sure; sorry I wasn’t of more help.
Dan.

Canadian "EH"