1999 Dodge 1 Ton cummins Diesel:
Ounce you turn off cruise control, either by taping break or cancel on steering wheel push switch, that works ok, but upon re-excellerating, the accelerator has no power or function. Truck has to be shut off and restarted before the accelerator functions again. Then all works fine, until the next time you use cruise control. Definitely related to the cruise control. It does appear it isnt 100% of the time but more so when RPMs drop or speed slows before down shifting. Appears keeping RPMs up and down shifting early eliminates the problem.
Prior, Dodge dealer had it for awhile. I dont believe my father realized it was directly related to the cruise control at that time. Dodge implied Engine Control Unit (ECU) wanted $3800.00 (plus labor) for new ECU, but wouldnt guarantee that was the problem. Based on their diagnostic.
Sent ECU into repair shop. They implied the ECU had a direct short and needed refurbished. Paid for that ($1300). Dad took a 300 mile trip after replacing the ECU and all went well. I just went on a trip with the father. I drove and realized the problem was still there but it was cruise control related.
I am wondering if the ECU now failed again due to another fault/issue. Or if the company that stated ECU was faulty, is legitimate.
Or if it was another issue all together. Perhaps RPM sensor, Speed sensor, Cruise control related. Any experience or ideas on the topic. .

 

Have you scan the vehicle for any codes?

 

They implied fault codes P1693 and P0121. That was prior to ECM refurbishment. Will be dropping trk at dealer to scan codes again following recent trip.