it's an '02 Deville with the split system. the pass side was cooling to 50* (95* outside temp), and the driver's side was only at 72*... pulled dash after failed attempt with a snake camera. pulled fan motor and attempted to scope from that side, with no evidence of blockage. the heater box assy is coming out for full inspection after the new evap core arrives (no way I'm putting the old one back in just to find that it's a blockage) ...
was thinking that as soon as he stated he was waiting to see it at the junkyard... bought my wife's Jeep Patriot there...