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Re: what exactly does 'tow/ haul' mode do?
Posted to Technical Discussion Forum on 11/18/2024

Any transmission codes? At some point, Ford trucks would protect the transmission when the TCM data was incorrect by doing torque management, and the result would be misfires that would be felt but not set any engine codes.

Chased my tail on that on a 5.4 E... Login to read more.