Hey everyone. So I’m the new owner of a 1994 explorer limited. It’s all stock and has been a blast to drive but it’s got a weird trans issue
4.0/ auto (A4LD) trans.
Shifter in the first D setting “OD”
If I accelerate on to the highway it’ll shift 4 times and drive for about 20 seconds in over drive. After about 20 seconds it’ll feel like it drops a gear. Rpm will jump up to around 3000 (55mph vehicle speed) and it will not shift back up no matter what speed I go.
Now, while cruising like this, if I shift down to the second D it’ll drop a gear (again?) and rpms will increase again from 3000 to 4000
I’m super confused in what’s happening during the first annd second increase in rpm since this trans is a 4 speed? Probably the torque converter unlocking?
also, a note to add is my cruise control doesnt work. Not sure if related or not.
I need overdrive to work.
Any help would be appreciated!
See pics below. Note shifter indicator position, speed, and rpm.


4.0/ auto (A4LD) trans.
Shifter in the first D setting “OD”
If I accelerate on to the highway it’ll shift 4 times and drive for about 20 seconds in over drive. After about 20 seconds it’ll feel like it drops a gear. Rpm will jump up to around 3000 (55mph vehicle speed) and it will not shift back up no matter what speed I go.
Now, while cruising like this, if I shift down to the second D it’ll drop a gear (again?) and rpms will increase again from 3000 to 4000
I’m super confused in what’s happening during the first annd second increase in rpm since this trans is a 4 speed? Probably the torque converter unlocking?
also, a note to add is my cruise control doesnt work. Not sure if related or not.
I need overdrive to work.
Any help would be appreciated!
See pics below. Note shifter indicator position, speed, and rpm.

