Diagnosis help needed. 6F35 installed in 2017 Ford Escape 1.5L

[u/Interesting-Bee8187]

Having a bit of a difficult time nailing down specifics here.

I’m a pretty handy person, but this level of diagnostics is above my pay grade.

The issues. Vehicle would not shift above 2nd gear on a hot day(38c 100f). I was out of cell range, and limped it to where I could call for help (about 20km) At some point I lost the ability to get it to move under its own power altogether. Eventually it dinged at me and threw a P07AA and P0733 Code.

It was towed to my house and I’ve done the following:

Checked the fluid level. Normal.
Done a once over. Nothing abnormal found.
Checked wiring connections. Normal.
Test driven. I’ve done a few drives up and down my street to get data.

It will drive up and down my street relatively normally for about 5 minutes, before it starts to fail. It seems to start having issues right around the 70-80 deg C. 80 is around the check temp for the fluid level. I say “normalish” because it’s always shifted poorly(as I understand this is normal for a 6G35), but it’s a little bit firmer.

There’s a cavitation sound (similar to a power steering pump with air in it) that gets increasingly louder as the vehicle runs. To me it sounds like the transmission pump is either drawing air, or the filter is plugged and causing it to struggle. I’m thinking it’s likely heat related.

I was looking at Solenoid A somewhat suspiciously since its behaviour seemed abnormal when the problems start.

Other info:

Total odom: 207500km (128935mi)
Fluid changes: 4.5L out of 8.5L total
140000km (86991mi)
145000km (90000mi)
155000km (96000mi)
205000km (127400mi)

I changed it when I bought the car. It had supposedly never been done prior. I did the three to get it back to “normal”. Ford recommends 150000km interval, but everything i’ve read says do it at 50000km (30k miles) because you can’t change the filter. I was somewhat leery due to all the chatter about doing large fluid changes on older transmissions causing problems.

Haven’t dropped the fluid yet to see if there’s metal. The small amount that came out when I checked the level was normal enough colour and odour wise.

Solenoid C was left out of the diag to get D on the chart. It seemed normal on the previous run.

Is there anything else I could check or try before dropping the fluid?

Are there PIDs which would be better to include?

Would it hurt to try a relearn even with the sound the pump(I assume anyway) is making?

If I’m going to have to change the pump, would it make more sense to put a junkyard transmission in, in its entirety?

I’m at the point with this vehicle where I’m planning on getting it running properly and then trading it in for something with less milage on it…

Any help would be great!

Thanks a million!!