Re: dumb & dumber

["Swayze" <kswayze@bellsouth.net>]

10   ?
01   ?
00   2nd
11   ?

just curious, when you lookcan you see what is says about pressure control (shift firmness maybe?)
Swayze
mswayze@truswood.com
kswayze@bellsouth.net

....................

> 4L80E has 2 solenoids (a + b) :) to control gear selection, a
> combination of switches to let the pcm know what gear is selected, and
> 2 solenoids to engage the tcc(IIRC).  The transmission defaults to
> second gear operation, with both solenoids off.  To put the trans
> through gears 1-4, the a + b solenoids are powered on and off in
> different combinations.  The only mechanical valve body holdovers that
> I can think of are a couple of accumulators to cushion the shifts.  If
> enough people are curious, I'll dig out my trans books in the next
> couple of days.
> Shannen
....................

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