while driving , goto shift gears and have nothing,had to let it set over nite and this morning it worked just fine

Look at cable end transmission side and see if the rubber inside metal loop attached to selector is broken or missing. Warm car to operating range check fluid level levels plainly maked on stick.fluid should be clean bright pinkish, and not have a burned odor, if there is a check engine light you need to determine what the problem is. ATF Is +4 type

Transmission is very slow to up shift...like loss of vacuum? any ideas?

thanks will do