Ford Edge 2008 Service Repair Manual PDF

2008 TRANSMISSIONS
Four Wheel Drive (4WD) Systems - Edge & MKX
SPECIFICATIONS
MATERIAL
a
Power Transfer Unit (PTU)
b
Rear Drive Unit (RDU)
TORQUE SPECIFICATIONS
DESCRIPTION AND OPERATION
FOUR WHEEL DRIVE (4WD) SYSTEMS
The All-Wheel Drive (AWD) system consists of the following:
Power Transfer Unit (PTU)
Rear driveshaft
4X4 control module (coupling device control module) (located behind the RH side instrument panel)
Rear axle with coupling device
Torque from the engine is transferred through the transaxle to the PTU. This torque is transferred from the
driveshaft to the rear axle, which drives the rear halfshafts. The AWD system, referred to as an Active Torque
Coupling (ATC) system, is always active and requires no driver input.
The AWD system continuously monitors vehicle conditions and automatically adjusts the torque distribution
between the front and rear wheels. During normal operation, most of the torque is delivered to the front wheels.
If wheel slip between the front and rear wheels is detected, or if the vehicle is under heavy acceleration, the
AWD s
y
stem increases torque to the rear wheels to prevent or control wheel slip.
Item Specification Fill Capacity
Motorcraft SAE 75W-140
Synthetic Rear Axle Lubricant
XY-75W140-QL (US); CXY-
75W140-1L (Canada)
WSL-M2C192-A 530 ml
(18 oz)
a
Motorcraft SAE 80W-90 Premium
Rear Axle Lubricant
XY-80W90-QL (US); CXY-
80W90-1L (Canada)
WSP-M2C197-A 1.15L
(2.43 pt)
b
Description N.m lb-in
4X4 control module nut 7 62
2008 Ford Edge SE
2008 TRANSMISSIONS Four Wheel Drive (4WD) Systems - Edge & MKX
2008 Ford Edge SE
2008 TRANSMISSIONS Four Wheel Drive (4WD) Systems - Edge & MKX
Microsoft
Friday, September 25, 2009 10:52:32 AM Page 1 © 2005 Mitchell Repair Information Company, LLC.
Microsoft
Friday, September 25, 2009 10:52:35 AM Page 1 © 2005 Mitchell Repair Information Company, LLC.