I would also mention to Brett the 6 hours of diagnosis (of which I'm sure the clock ran). I know they are good; but, if so, you should not have a 6 hour bill and the problem not solved. It appears you got one of the "greenies" and the clock should drop way back to compensate for the learning curve. i believe that Alliance is good, but I disagree that the hourly charge should stay at $120/hr (or whatever it is now) while they are trying to figure it out. Good luck!
Hugh, Fran and "Riley" the dog
2018 Cedar Creek 38EL Champagne
2017 Ford F350 SRW CC SWB 4x2