My husband and I thoroughly tested this problem last night, so I have a
much better description of how the car is behaving. Also, I determined
that this Taurus has the AX4N transmission.
When starting in D from a stop, the car is doing one of two things.
First, sometimes it shifts 1-N-2-N-3. Normally, the time in neutral is a
fraction of a second, but sometimes it's about a second-and-a-half. When
it's neutral for the longer time, the RPM needle jumps. The speedometer
needle remains level.
Second, sometimes it feels like it's not slipping into neutral but
actually is shifting very slowly and not smoothly from 1-2-3. After it
reaches third gear, it shifts fine. In this scenario, the RPM needle
remains steady while shifting. The speedometer needle remains level.
Any new thoughts on this?
We have taken the car to a transmission shop today, so I will update this
thread with any diagnoses/solutions.
Meantime, I'm still appreciative of any thoughts from y'all on what this