 Fords abiility to diagnose issues is suspect at best. During the summer of 2016, Ford replaced the points on clynder # 7. Then replaced the short block then sent out and had the heads rebuilt.  In the spring of 2017 a shutter in the transmission developed.   Ford reset the learning process but the shutter never went away. In the fall ford indicated that they thought the torque converter was bad,but they could not get one.  As such they replaced the entire transmission. Now after three resets of the learning process the transmission continues to clunk going in and out of first gear. Ford at this point doesn’t know what to do?  My truck has been in the shop for over 40 days to date with no resolution in site.  Thank god I bought the extended warranty!