I have a 2007 DRW 3500 Ram Mega Cab with 6.7 Cummins and 6-speed automatic. I bought the truck about 3 weeks ago. It already had the DPF and EGR deleted and a H&S XRT programmer. While driving down the highway today, running about 60 mph, it died. As I pulled over to the shoulder, it started running again. I continued down the highway and about a mile down the road, it died again. This time, it did not "come back to life" on its own. I pulled over, put it in park and turned the key off. I then tried to start it again and, even though everything electrical seems to be fine, the starter will not engage and turn the engine over. I checked the battery cables and found the clamps on one of the batteries were a little loose. I cleaned them, as well as those on the other battery, and re-installed. No change. I have since checked the connections on the starter, tried jumping each battery with my '98 12-valve Cummins powered 3500 and disconnected both batteries for over 20 minutes and none of these efforts made any change. When I turn the key on, everything lights up, gauges come to life that are supposed to, etc, etc. When I turn the key to start, nothing - just a low "click" that you can barely hear that tells me the the ignition switch is making contact and attempting to send a signal. Additionally, I'm not getting any "check engine" lights or "service needed" on the overhead display. I did connect the programmer to check for codes, just in case, but it said there were no codes to read. Any suggestions as to what's going on? Another forum had a few threads pointing to the Wireless Control Module. Any experience with this? Thank you, in advance, for any help anybody out there can provide.

 

I am having the exact same problem and was wondering if you have found a resolution to your problem.Any help would be greatly appreciated

 

It wound up being the computer. I tried a re-programmed computer from an outfit in Florida. After them sending me three computers, none of them working, I ended up at the dealer. It was about $3600 to replace the computer and program it.