This happens whenever the vehicle has been sitting for more than an hour
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2002 Toyota Tacoma Question: Why won't transmission shift into 3rd when it is cold but will when warm
Answer #1patrick mannion from Greg Solow's Engine Room, March 14, 2012, 23:54Master
May have a sticking valve in the transmission valve body, have a transmission shop check it out/service the transmission.
Replyyorgo, March 16, 2012, 16:59Rookie
The guy at the shop said the seals are hardening and the only fix is a rebuild. Thanks for the help.