RE: 1-2 Accumulator modification, Mercon V
I might add I drove my '93 as a daily driver almost two years before I upgraded the 1-2 accumulator. After finding LOD, I was convinced my 1-2 accumulator had a broken bottom spring. Light to mid throttle 1-2 shifts seemed OK, but agressive or WOT 1-2 shifts were extreme IMO. So I drove with care for almost a year with this knowledge and fear. When I finally did the work, I found the spring broken in 3 pieces and no bore scuffing. The fluid was not burn't, the pan was very clean and I felt vindicated.