I have a 2003 RAM 3500 with a Cummins 5, 9 ltr diesel engine and automatic transmission. The problem is that its changing gear uncontrolled between 3rd, 4th and OD. When I try the cruise control, it turn it self off after just a few seconds. The problem came after I drove into a pretty big bump in the road. It became worse gradually. Could it be an electrical problem? I went to a local garage and changed oil, filters and some electrical sensors/switches in the transmission. It didn`t get any better : -(
Looking forward to your reply.
Per Olav Maridal
Friday, February 25th, 2011 AT 7:47 PM