Repete86 Posted December 21, 2016 Share Posted December 21, 2016 Having problems with shifting, I have replace all trans harnesses in cab to the truck harness, new engine harness, checked and made sure all connections on trans are clean and tight NO CODES at all in V-MAC!!!when placing truck in gear sometimes will grab gear nice and smooth other times motor picks up rpm then grabs gear? Other times truck feels like brakes are on when you start moving? I have ran power and ground direct to TCU and replaced all battery cables to starter and have cleaned and checked all firewall power and grounds, am I missing something? Has anyone else have this type of problem? Quote Link to comment https://www.bigmacktrucks.com/topic/48081-2007-cxp613-ultrashift-problems/ Share on other sites More sharing options...
hgfdg1990 Posted December 22, 2016 Share Posted December 22, 2016 gota be dem dog teeths , any unusual noises coming from the shifter when going into gear? Quote Link to comment https://www.bigmacktrucks.com/topic/48081-2007-cxp613-ultrashift-problems/#findComment-355749 Share on other sites More sharing options...
Repete86 Posted December 22, 2016 Author Share Posted December 22, 2016 Typical... looking in one area for a problem, find a fix somewhere else, problem as of now was/is data link plug had/has a short in it, looks like a whole new dash harness Quote Link to comment https://www.bigmacktrucks.com/topic/48081-2007-cxp613-ultrashift-problems/#findComment-355764 Share on other sites More sharing options...
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