Tracker Tranny Weird???

93 GEO Tracker automatic 4X4 .Transmision doesn"t upshift when cold. Fluid and filter changed(NO Difference) After engine is warmed up tranny shifts perfect!! Any Ideas or past experiences??? Thanx to anybody !!! Vacarman02

i had the same problem out of my 95 but mine is not a 4X4 , i had to have my trans rebuilt

My '92 4x4 does has a similar problem, trouble going into first when it's cold, not a big deal, just a litte "sticky"