Stryker, if you didn't notice the one reference to this in the link that Lars posted, the throttle body spacer seemed to give modest gains back when engines had carburetors. They seem to do nothing either pro or con for a fuel injected vehicle except, in some cases, cause noise.
I see them as an unnecessary complication that should not be used under the K.I.S.S. principle. My advice would also be to take it off.
It really sounds to me like the TC on your truck is sensing load and is unlocking, then locking back up again. You could check for this of course if you monitored "Comm Gear" as one of your PIDs. I might help Bill fix the issue if you were able to either confirm or reject this hypothesis.
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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