dodge guy wrote:
If my memory is correct the reason for disconnecting has something to do with the electric power steering. Something with steering input from the wheels instead of the steering wheel. I know on my buddy’s focus he needs to disconnect the battery after hooking up.
Or you could run a charge wire to the car if it’s not necessary to disconnect the battery.
The Focus is much more important to disconnect. It prevent it from going into "Park". Park is in quotes because in really just engages both clutches and locks the two output shafts together, and default low-voltage state is Park, so its safer for the the trans to not have any power at all.
I haven't heard of any issues with the EPS on the Fords, but a charge line is a good idea.