[amc49]

Mileage? And the last time fluid was changed?

That trans can wear like lightning when the fluid does not get changed every 30K miles. The driver side end cover wears to make bad hydraulic leaks that can act just like yours.

 

[amc49]

After rereading the post it may be possible. Your description was actually wide open compared to most and I took the words 'immediately shifts into like 3rd-4th gear' for what they are instead of grasping you likely forced a downshift by getting into throttle deeper trying to get the car to go faster.

I am likely wrong, your guy may be dead on. I have transmission on the brain lately, a lot of posts on them.

Your mileage is as well too low to already have trans wear of the type I proposed.