You too.
If the shop that did the rebuild didn't replace the TRS... or didn't properly adjust it... this is very likely the reason for your code.
While in tight quarters... the TRS is easy to adjust.
After putting the car on jack stands... put the trans in neutral and disconnect the shifter cable at the trans.
Look for a couple "line up marks" on the TRS. If not lined up... loosen the 2 bolts on the TRS and line up the marks... and re-tighten the bolts.
Now double check the cable alignment with the shifter arm on the trans. (still in neutral)
If the end of the cable doesn't line up with the ball on the shifter arm... follow the cable back part way to the shifter.
You will see a white "saw toothed" piece. That is where you adjust the cable. I don't exactly remember how it adjusts... but it should be fairly obvious.
Just move the adjuster...
until the trans end of the cable lines up with the ball on the trans shifter arm.
If both of the above do not fix the issue... then the TRS is most likely bad. A new TRS is around $60 from the dealer... or about $35 from a Ford parts place online (do NOT buy an aftermarket TRS).
If you don't want to do this job yourself... take it back to the trans shop and tell them what is going on... and demand they make it right. (adjusting the TRD and cable).
At the most... the shop may have to replace the TRS on your dime...but I suspect the cable isn't adjusted properly.
