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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Automatic Transmission - 6R140 (TORQSHIFT-R-6)) >> Description & Operation >> System Operation >> 4th Gear >> Mechanical >> Powerflow

4th Gear: Mechanical: Powerflow

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
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In 4th gear, SSA is commanded ON by the PCM/TCM to apply the forward (1, 2, 3, 4) clutch. Shift Solenoid E (SSE) is commanded OFF by the PCM/TCM to apply the overdrive (4, 5, 6) clutch. The forward (1, 2, 3, 4) clutch connects the front carrier to the No. 3 sun gear and the overdrive (4, 5, 6) clutch is applied to transfer power from the input shaft to the rear planetary carrier, providing a 1.149 to 1 gear ratio.

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