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
| 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. 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 Owners Manual: Repairing Minor Paint Damage. Cleaning the Wheels
Repairing Minor Paint Damage Authorized dealers have touch-up paint to match your vehicle’s color. Your vehicle color code is printed on a sticker on the front, left-hand side door jamb. Take your color code to your authorized dealer to make sure you get the correct color...
Ford Fusion 2013–2020 Owners Manual: Smart Unlocks for Intelligent Access Keys
This feature helps to prevent you from locking your intelligent access key inside your vehicle’s passenger compartment or rear cargo area. When you electronically lock your vehicle with any door open, the transmission is in park (P) and the ignition is off, the system searches for an intelligent access key inside your vehicle after you close the last door...
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Power Door Locks
The power door lock control is on the driver and front passenger door panels.
