we are TECHNICAL & MANY of us own VERY EXPENSIVE DIAGNOSTIC tools...
and LOTS of us perform our own repairs.
the experiance and skill set vary...some are techs, some are engine builders
some are DIY'ers & Shade Tree mechanics in our own right...
if you can give us some engine codes and symptoms we can mostly be
of further assistance (assuming youre interested in solving the problems
by means OTHER than a buy-back)
there are LEMONS no doubt...but they are few and far between.
FORD & Its dealers have done a piss poor job of training their techs...
lots of techs know nothing more than RIP, REPLACE, and HOPE (they
eliminated the problem).
20k for a new turbo is SUSPECT...
"broke down" isnt much a problem description...
overheated could be a result of lots of things...no coolant would be a start...
and
"lost everything" w/in 4k miles of having "lost everything" previously
generates SUSPICIONS of a tech&dealer that doesnt know what theyre
doing !