It could be related to the torque converter. That is what allows the engine to remain running when the vehicle is stopped.
Have you checked to see if there are diagnostic trouble codes stored in the system? On this vehicle, I would recommend having the can-bus scanned. CAN stands for controller area network.
Basically, all the computers/modules are tied together via a few wires. This type of scan will retrieve codes regardless of the module storing them.
Here is a link that explains how it is done:
Let me know. Also, let me know if it jumps when this happens as if you popped the clutch on a vehicle having a manual transmission.
Saturday, October 8th, 2022 AT 10:24 PM