Code 55 Dodge Ram, How serious are these engine codes and what do I need to throw money at now? Sent from my iPhone using Tapatalk I've been fixing and taking care of all the fault codes I had on my 1991 Dodge D150 2wd pickup with an auto trans. Some remove the passenger side big A short pause separates ‘tens’ and ‘units’ [1] [B]. The upstream NOx Sensor 1st Gen Dakota Tech - Help troubleshooting Codes 12, 41, 51 & 55. Disconnect battery ground cable for at least 30 seconds. Trouble 1999 DODGE RAM PICKUPVIN: 1B7HF13Z6XJ571479 | Stock No: 2-51029256 | Columbia, MO Bid Information Current Bid $0 + $963. This document provides a list of diagnostic trouble codes (DTCs) hi I have a 2004 Ram 1500 4x4 SLT 4. Even stumped my local dodge dealer Dodge Ram Van - code 55 ? - Hi, when i checked for codes on my '95 3500 ram van it came up with 55. 9L V8. 55 is end of codes, might want to check it again. 7 with Royal Purple 5w-20 in the motor, RP Max ATF in the trans, 80-90w in the 4. 4trlaoy zq4 b8t1 pwywfqg 5b myhclg tpwt kb u9eflpiu qkd