Torque converter or the transmission oil pump getting worn or a valve in the transmission is sticking.
Had problem with 86 Lincoln not shifting properly when cold. I assumed it was because the fluid was thicker and would be more affected by a clogged filter. I had the transmission flushed and the filter cleaned and it worked perfectly from then on.
Check your transmission.
Check fluid level with engine warm in park, also check linkage from shifter to transmission casing.
Have your transmission flushed.($120-140) My 87 Accord did the same thing. Unfortunately, it needed a rebuild a year later. Good luck. Is level low?
the seals in the transmission are shrunk but will expand when the oil gets warm so it will then shift
Check level of transmission fluid Change transmission fluid and filter
try changing the filter and the trans fluid
You should never run your car when it is not warm enough. More than likely you need a transmission fluid change, and the filter as well. Which is quite easy, but I would advise you to never run your car until it is fully warm enough for the car to be driveable.
i found out my self it was the shift mod.
hi i had the same problem,but when i changed the transmission modulater it stopped.i hope it works out for you to .good luck!!!! email@example.com
I would be suspicious of the shift solenoids, this model I believe has 2 of them, along with a tcc solenoid.