I can't speak for all the mechanics, but I got very good service on a Saturday morning without an appointment from Larry Miller Dodge/Ram in Albuquerque. I had intermittent brakes on a new 5th wheel. I was almost certain it was a trailer problem, but I was passing through Albuquerque, so I dropped in and asked them to check the 7 pin connector and the integrated brake module just to verify (truck was in warranty and was purchased from an out of state dealer). It took about an hour while I waited but they checked it and washed the truck! The whole experience seemed very professional. I spoke with the tech who checked the truck and he actually understood that it was a pulse-duration modulated (PDM) brake controller, and DC checks wouldn't work on it. I can't speak for the engine mechanics, but this tech had obviously been to school on the brake controller. Usually when you find good service in general, it follows through the organization.
Amateur Radio WA4GIY
2015 Montana High Country 305RL
2013 RAM 3500 4x4, crew cab, long bed, 6.7 CTD, Aisin trans.
CGVW 20460 Lbs.