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In the Ford Escape, the PTU, which stands for power transfer unit, is responsible for transferring power between the rear axles without needing to share hydraulic fluid. Essentially, this component ensures that power from the back axle is transferred to the front axle, enabling the vehicle to be driven. If the PTU malfunctions, you may struggle to move the vehicle or experience significant power loss. Continuing to drive in this condition can lead to damage to the rear axle, which would escalate a moderate repair cost into a substantial one. It is advised not to operate the vehicle under these circumstances.
The PTU in the Ford Escape functions as the power transfer unit, enabling the transfer of power from a shaft to the differential in the rear axle.