Hey, Im real new to this site so I might have this in the wrong place, but I hope someone can help me with this problem. It only occurs in the winter when its cold out, and the colder it gets the worst it gets. Very simply put my 91 Stanza seeme to only shift into the last gear when its nice and warmed up. (Im not talking about overdrive) I think its a 3 speed trans with a overdrive? Correct me if Im wrong. I was thinking I should give it a trans flush and it that doesnt work I was thinking about just buying I magnetic heater for it or something. I bought a parts car and it seems to have the same problem. Could it be the speed sensor, pedal sensor, valve body? I dont know, thats why Im hoping someone else had the same problem. Any help would be greatly appreciated!
Thanks.