Tom,
I found it. Guess what? It was actually installed backwards (flow arrow pointing to the condensor). When I removed it, the liquid line to the TXV was almost completely clogged with little disicant balls. 200lbs of nitrogen and that line is now clear. I put in a new drier and new txv. While apart, I blew out all lines, the evaporator and condensor and changed all the orings. Nice cold dash air again!!! Nice to have here in SW Florida.
Jim