I've got the same problem at time in my '91 GL, with a rebuilt tranny. I
think it's a valve sticking in the valve body.

Something to learn to live with unless you know of a REPUTABLE rebuilder.
The place I took mine took four tries to get it right, and it still is
sluggish when cold, and shifts funky at times.

Chuck Kuecker

At 10:35 04/19/2005, David McCallum wrote:
>I have an interesting intermittent situation for
>the consideration of the list...'89 Westy, engine
>rebuild ~4k miles ago (according to the PO). I've
>been doing the spit 'n' polish to get things just
>exactly perfect, and it's running well. But...
>
>Sometimes, on cold start, when I put it into drive,
>nothing happens. At first I revved to get a response,
>but soon realized that did no good. If I let it idle
>in gear, after maybe 10 secs I'll start to move
>forward. This happens maybe 1 in 10 mornings. I'm
>driving in city traffic 2-3 times a week.
>
>Fluid level is good, maybe a bit high, fluid color
>looks decent but not new. I have the A/T tuneup kit
>of screen, gasket, etc. and plan to tackle that this
>weekend, but thought I'd ask for any thoughts about
>my A/T's intermittent sluggishness in case I need to
>address something while I have the cover off.
>
>Thanks much...it's a testimony to the current members
>and archives that I haven't needed to post regarding
>a problem until now, as the archives and discussion
>have covered the other (many) situations I've faced
>since buying "Boris" last July. I love the list!
>
>Cheers!
>David McCallum