I saw this on Two Guys Garage and wanted to know if anyone tried it, and where the access point would be on a 98 Z so I could use this stuff.

http://www.lubegard.com/automotive/radiator_foam.html

 

It's just a coil cleaner. They are usualy just a mild acid that will remove som of the jumk the biulds up on the evap and heater cores. Just follow the directions and gain accsess through the removal of the blower motor and you should be alright. There are also aerosol products that you can spray into the air intake of the vents with the blower running that will nutralize oders in the vents