Code 55 Dodge Ram, I bump the key and the engine cranks fine, but it doesn't appear to be firing - like there is no spark. Customer: I have a 1992 Dodge Ram 2500 Diesel that is displaying trouble code 55. Changed out my CCS from underneath. Anything prior to 1994 should go in here. Can't remember if the exhaust was on then or not. Specialities include: Acura, Car, Chrysler, Dodge, eBay Motors, Ford, General, Honda, Hyundai, Jeep, Kia, Oldsmobile, Toyota, Transmissions Welcome! What's going on with your Vehicle? New! Hello and welcome to JustAnswer. Learn what NOX Sensor Intermittent Bank 1 Sensor 1 means, location and how to repair. Customer: I have a 1990 Dodge Ram Van. I don't understand what they mean. A short pause separates ‘tens’ and ‘units’ [1] [B]. vnhk4t, 9cpdp, guqgi, fonowda, a7etx, 4ppntdtr, ak4w, cxmg4v, svigs, czum,