Thank you for sharing your concerns. I assure you our test was done using the proper equipment. We utilize the Ford Ids system (the same scanner used by ford), along with scanners used by all the "big3". All of the key indicators such as the temp sensor were were watched during testing. Had somthing led us to do a manual pinpoint test, we would have done it. Since we did not charge you for the diagnostics, performing one such test would have incurred an unnecessary diagnostic fee.
I wish it could have been an easier fix, as that would have been a sellable outcome, and we both would be happier.
Wish you well