Why won't transmission shift into 3rd when it is cold but will when warm on 2002 Toyota Tacoma

This happens whenever the vehicle has been sitting for more than an hour

by in Saint Helens, OR on March 14, 2012
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
ANSWER by , March 14, 2012
May have a sticking valve in the transmission valve body, have a transmission shop check it out/service the transmission.
COMMENT by , March 16, 2012
The guy at the shop said the seals are hardening and the only fix is a rebuild. Thanks for the help.