[V8] Kick down Erratic

[Kneale Brownson]

Have you tried replacing the tranny fluid?  And please trim the digest from your messages.

Joe Fox <2-foxes at comcast.net> wrote:  
My '94 V8 rarely downshifts when floored; must switch to 'S' mode to get
decent acceleration. Don't believe it's the kick down switch because it
will downshift in 'S' mode, and the AC cuts back w/heavy throttle (assume KD
switch controls this too). From dead stop, trans usually shifts quickly
through the gears providing sluggish acceleration. However, sometimes (in
cooler weather) it stays in gears longer, accelerates nicely, and kick down
works fine. Seen this problem discussed in archives, but haven't seen a
plausible solution. Any BTDT's??