Snakebitten
Well-known member
- First Name
- Bruce
- Joined
- Jun 19, 2021
- Threads
- 5
- Messages
- 11,560
- Reaction score
- 22,964
- Location
- Coastal Texas
- Vehicles
- 2022 F150 KingRanch Powerboost
Historically that bump with ICE off is a result of the electric auxiliary transmission pump not adequately taking the baton from the gear driven mechanical pump. Thus not gracefully maintaing the clutch pressure necessary to sit still.The other, is that once in a while, at a stop, I get the bump in the back. Again, not every time and so far, enough to make you look in the rearview but not enough to claim whiplash![]()
Hopefully yours doesn't escalate or deteriorate beyond the bump you describe. But if I were you, I would at least harvest any soft codes that might relate to the auxiliary pump, before I shut the truck off on that trip.
You might need to assist your dealership with that code(s) if you ever need the pump replaced?
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