96 Chevy Blazer Slow Shift into Overdrive
 

pretty much title says it all. 96 chevy blazer 2 door 4x4 4.3l v6 takes about 4 mins when cool (110f) to shift into over drive, 55mph-2kish rpm, when hittin interstate at around 70 i get 2500 rpm till OD kicks in then it drops down to 2.2k at 70 2.5k at 75. fluid is emaculate, do some some problems with the tranny as in if i put the thing in park she no shift outta park if cranked.. gotta turn it off and push on it to release from park its a bitch.. and i get no dash illumination for what gear im in wether be rev,neutral, or and of the drives.

Could the linkage to the transmission be out of adjustment?

possibly but it stays in drive fine with how it is

During the colder months it takes slightly longer for the transmission fluid to warm up enough for lockup to occur.

lul bit late reply, thermostat was shot, truck wouldnt heat up, new cooling system later i got overdrive back; pump, fanclutch, rad, thermo.
thanks fo da help tho homes

Better late than never, thanks for letting us know what was wrong