Are these Dodge Dealer Service Centers?

For what it's worth, when I worked at an independent auto shop (2001),
the diagnostics software we used was sophisticated enough to do a
"misfire count" while we drove the vehicle.  If it was an
ignition-related problem, it sure made the diagnostic end quick and
easy for any Joe in the garage -- and I'd find it hard to believe that
this level of technology (or it's 2003/6 replacement) isn't available
from a computer interface designed to work with Dodges (as opposed to
the Autozone/Midas fault code reading).  If it wasn't ignition related,
it was easy for the tech to review the data on the monitor and start
from there.

If the shops have taken the car in and have been able to replicate the
problem, I would have  a hard time accepting the 'no code, no fix'
excuse.

If you've been taking it to a lower-level shop (though you make it
sound like it's the dealer...) that doesn't have the manpower or
sophistication to help you, then you know what the next step is.

Jon