Having problems with transmission when I kickdown to pass.  Transmission
goes into passing gear,  kicks back out,  then will not shift further.
Check engine light also comes on.  Killing engine and restarting usually
fixes the transmission shift problem but check engine stays on.  Dealer says
the check engine error is a pressure switch.  Dealer cannot duplicate the
problem.  This has got to be something common. Any help out there?

Thanks, Garry