Ford Fusion Manuals

Ford Fusion: Power Transfer Unit - 6-Speed Automatic Transmission – 6F35 / Power Transfer Unit - Overview. Description and Operation

The AWD system consists of the following:

  • Power Transfer Unit (PTU)
  • Rear driveshaft
  • AWD control module
  • Rear axle with coupling device

The Power Transfer Unit (PTU) is a gearbox that attaches to the transmission. The PTU directs power to the rear driveshaft through a helical gear spline coupled to the transmission differential case and hypoid/helical ring gear assembly and pinion set. It supplies torque to the rear axle through the rear driveshaft. The AWD control module is an electronic device which controls the rear axle coupling to apply the torque generated from the Power Transfer Unit (PTU) to the rear wheels when required. On AWD vehicles the intermediate shaft passes through the PTU and engages the differential side gears. The serviceability of the Power Transfer Unit (PTU) is limited to the input shaft seal LH, input shaft seal RH, intermediate shaft seal, transfer case rear seal, cover seal, face seal, vent hose and the output flange deflector. If any internal damage is present the Power Transfer Unit (PTU) must be replaced as a sealed unit.

Power Transfer Unit (PTU) Exploded View

Ford Fusion. Power Transfer Unit - Overview. Description and Operation
1 Output flange nut
2 Output flange
3 Deflector
4 Transfer case rear seal
5 Outer output shaft tapered roller bearing
6 Outer output shaft tapered roller bearing shim
7 Input Shaft Seal LH
8 Transfer case vent
9 PTU (power transfer unit) housing
10 Input shaft
11 Input shaft bushing
12 Input shaft outer bearing
13 Input shaft outer bearing shim
14 O-ring cover seal
15 PTU cover
16 PTU cover bolts (9)
17 Intermediate shaft seal
18 PTU fill plug
19 Input shaft seal RH
20 Output shaft
21 Inner output shaft tapered roller bearing
22 Inner output shaft tapered roller bearing shim
23 PTU drain plug
24 Face seal
25 Input shaft inner bearing
26 Input shaft inner bearing shim
27 Identification tag

    Power Transfer Unit - 6-Speed Automatic Transmission – 6F35

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    Power Transfer Unit. Diagnosis and Testing

    Principles of Operation The AWD system may be referred to as a 4WD system in other service information and owner literature or messages located on the message center...

    Other information:

    Ford Fusion 2013–2020 Service Manual: Driveshaft Angle Measurement. General Procedures


    Check NOTE: This procedure does not apply to CV joints, flex couplers or double cardan joints that are used in some driveshafts. This check is for single-cross and roller-style joints found in the driveshafts. NOTE: Prior to checking driveline angularity, inspect the U-joints for correct operation...

    Ford Fusion 2013–2020 Owners Manual: Head Restraints


    WARNING: Fully adjust the head restraint before you sit in or operate your vehicle. This will help minimize the risk of neck injury in the event of a crash. Do not adjust the head restraint when your vehicle is moving. WARNING: The head restraint is a safety device...

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    The power door lock control is on the driver and front passenger door panels.

    Ford Fusion. Power Door Locks

    Unlock. Lock.

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