Hi Suzanne, I recently converted my ac from the R-12 to the R-134 using the
kit from Walmart. It works great so far and was simple to do. Before that
the AC didn't work except to blow hot air! I think that is the way to go.
The Bentley has instructions on how to purge the AC system. I was afraid to
do it at first but everything turned out well.
-Loretta
87 Syncro GL
90 GL