Lincoln Aviator: Front Drive Axle/Differential / Description and Operation - Front Drive Axle and Differential
The 6.5-inch ring gear rear differential axle has 3.31, 3.58 and 3.73 gear ratio versions.
Front Drive Axle and Differential
The front drive axle consists of:
-
A cast-aluminum center section, a removable cast-aluminum differential housing cover
-
Integral-type housing hypoid gear design (center of the
pinion set below the centerline of the ring gear). Two opposed tapered
roller bearings support the drive pinion in the axle housing
-
A drive pinion collapsible spacer, located on the pinion
shaft, maintains pinion bearing preload. The pinion nut adjusts the
preload
-
Differential bearing shims, located between the
differential bearing cups and the axle housing, adjust the differential
bearing preload and the ring gear backlash
-
A differential case, a 1-piece design with 2 openings to
allow for assembly of the internal components and lubricant flow. Two
opposed tapered roller bearings (differential bearings) support the
differential case in the axle housing. Removable differential bearing
caps retain the differential assembly in the axle housing
-
The bar code tag located on the RH side differential assembly contains the axle information
The
front drive axle receives input from the transfer case by way of the
front driveshaft. Rotational torque is transferred through the drive
pinion to the ring gear, which in turn drives the differential case.
Inside the differential case are the pinion gears which rotate on the
stationary pinion shaft and the side gears which are splined to the axle
shafts. The differential assembly is a gear arrangement that allows the
drive wheels to be driven at different speeds and divides the input
torque of the pinion gear between the axle halfshafts. The front axle
transmits torque only and carries no vehicle load. CV-joints
located at each end of the halfshafts allow the axle to remain
stationary in relationship to front wheels, yet articulate at the
knuckle. These CV-joints permit the wheels to be driven and turned at the same time.
Materials
Name
Specification
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant / XY-75W140-QL
WSL-M2C192-A
Motorcraft® High Temperature 4x4 Front Axle and Wheel Bearing Grease XG-11
WSS-M1C267-A1
Capacities
Item
Liters
Material: Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
/ XY-75W140-QL
(WSL-M2C192-A)
0...
Principles of Operation
Inspection and Verification
Verify the customer concern.
Visually inspect for obvious signs of mechanical or electrical damage...
Other information:
Adaptive cruise control precautions apply to
lane centering unless stated otherwise or
contradicted by a lane centering precaution.
WARNING: Do not use the system
when towing a trailer. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death...
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Diagnostic Trouble Code Chart
Module
DTC
Description
Action
SUMA
B1041:52
Levelling Control: Not Activated
GO to Pinpoint Test W
SUMA
C1043:00
Pressure Decrease Too Slow From Reservoir: No Sub Type Information
GO to Pinpoint Test M
SUMA
C104C:11
Left Rear Spring Rate Valve: Circuit Short To Ground
GO to Pinpoint Test E
SUMA
C104C:12
Left Rear Spring Rate Valve: Circuit Short To Battery
GO to Pinpoint Test E
SUMA
C104C:13
Left Rear Spring Rate Valve: Circuit Open
GO to Pinpoint Test E
SUMA
C104C:1A
Left Rear Spring Rate Valve: Circuit Resistance Below Threshold
GO to Pinpoint Test E
SUMA
C104C:1F
Left Rear Spring Rate Valve: Circuit Intermittent
GO to Pinpoint Test E
SUMA
C104D:11
Right Front Spring Rate Valve: Circuit Short To Ground
GO to Pinpoint Test D
SUMA
C104D:12
Right Front Spring Rate Valve: Circuit Short To Battery
GO to Pinpoint Test D
SUMA
C104D:13
Right Front Spring Rate Valve: Circuit Open
GO to Pinpoint Test D
SUMA
C104D:1A
Right Front Spring Rate Valve: Circuit Resistance Below Threshold
GO to Pinpoint Test D
SUMA
C104D:1F
Right Front Spring Rate Valve: Circuit Intermittent
GO to Pinpoint Test D
SUMA
C104E:11
Right Rear Spring Rate Valve: Circuit Short To Ground
GO to Pinpoint Test F
SUMA
C104E:12
Right Rear Spring Rate Valve: Circuit Short To Battery
GO to Pinpoint Test F
SUMA
C104E:13
Right Rear Spring Rate Valve: Circuit Open
GO to Pinpoint Test F
SUMA
C104E:1A
Right Rear Spring Rate Valve: Circuit Resistance Below Threshold
GO to Pinpoint Test F
SUMA
C104E:1F
Right Rear Spring Rate Valve: Circuit Intermittent
GO to Pinpoint Test F
SUMA
C104F:11
Left Front Spring Rate Valve: Circuit Short To Ground
GO to Pinpoint Test C
SUMA
C104F:12
Left Front Spring Rate Valve: Circuit Short To Battery
GO to Pinpoint Test C
SUMA
C104F:13
Left Front Spring Rate Valve: Circuit Open
GO to Pinpoint Test C
SUMA
C104F:1A
Left Front Spring Rate Valve: Circuit Resistance Below Threshold
GO to Pinpoint Test C
SUMA
C104F:1F
Left Front Spring Rate Valve: Circuit Intermittent
GO to Pinpoint Test C
SUMA
C1124:07
Height Sensor(s): Mechanical Failures
GO to Pinpoint Test G
SUMA
C1124:11
Height Sensor(s): Circuit Short To Ground
GO to Pinpoint Test H
SUMA
C1124:12
Height Sensor(s): Circuit Short To Battery
GO to Pinpoint Test H
SUMA
C1124:54
Height Sensor(s): Missing Calibration
GO to Pinpoint Test U
SUMA
C1A03:2A
Left Front Height Sensor: Stuck in Range
GO to Pinpoint Test I
SUMA
C1A03:34
Left Front Height Sensor: Signal High Time Less Than Minimum
GO to Pinpoint Test I
SUMA
C1A03:35
Left Front Height Sensor: Signal High Time Greater Than Maximum
GO to Pinpoint Test I
SUMA
C1A03:36
Left Front Height Sensor: Signal Frequency Too Low
GO to Pinpoint Test I
SUMA
C1A03:37
Left Front Height Sensor: Signal Frequency Too High
GO to Pinpoint Test I
SUMA
C1A03:84
Left Front Height Sensor: Signal Below Allowable Range
GO to Pinpoint Test I
SUMA
C1A03:85
Left Front Height Sensor: Signal Above Allowable Range
GO to Pinpoint Test I
SUMA
C1A04:2A
Right Front Height Sensor: Stuck in Range
GO to Pinpoint Test J
SUMA
C1A04:34
Right Front Height Sensor: Signal High Time Less Than Minimum
GO to Pinpoint Test J
SUMA
C1A04:35
Right Front Height Sensor: Signal High Time Greater Than Maximum
GO to Pinpoint Test J
SUMA
C1A04:36
Right Front Height Sensor: Signal Frequency Too Low
GO to Pinpoint Test J
SUMA
C1A04:37
Right Front Height Sensor: Signal Frequency Too High
GO to Pinpoint Test J
SUMA
C1A04:84
Right Front Height Sensor: Signal Below Allowable Range
GO to Pinpoint Test J
SUMA
C1A04:85
Right Front Height Sensor: Signal Above Allowable Range
GO to Pinpoint Test J
SUMA
C1A05:2A
Left Rear Height Sensor: Stuck in Range
GO to Pinpoint Test K
SUMA
C1A05:34
Left Rear Height Sensor: Signal High Time Less Than Minimum
GO to Pinpoint Test K
SUMA
C1A05:35
Left Rear Height Sensor: Signal High Time Greater Than Maximum
GO to Pinpoint Test K
SUMA
C1A05:36
Left Rear Height Sensor: Signal Frequency Too Low
GO to Pinpoint Test K
SUMA
C1A05:37
Left Rear Height Sensor: Signal Frequency Too High
GO to Pinpoint Test K
SUMA
C1A05:84
Left Rear Height Sensor: Signal Below Allowable Range
GO to Pinpoint Test K
SUMA
C1A05:85
Left Rear Height Sensor: Signal Above Allowable Range
GO to Pinpoint Test K
SUMA
C1A06:2A
Right Rear Height Sensor: Stuck in Range
GO to Pinpoint Test L
SUMA
C1A06:34
Right Rear Height Sensor: Signal High Time Less Than Minimum
GO to Pinpoint Test L
SUMA
C1A06:35
Right Rear Height Sensor: Signal High Time Greater Than Maximum
GO to Pinpoint Test L
SUMA
C1A06:36
Right Rear Height Sensor: Signal Frequency Too Low
GO to Pinpoint Test L
SUMA
C1A06:37
Right Rear Height Sensor: Signal Frequency Too High
GO to Pinpoint Test L
SUMA
C1A06:84
Right Rear Height Sensor: Signal Below Allowable Range
GO to Pinpoint Test L
SUMA
C1A06:85
Right Rear Height Sensor: Signal Above Allowable Range
GO to Pinpoint Test L
SUMA
C1A20:00
Pressure Increase Too Slow When Filling Reservoir: No Sub Type Information
GO to Pinpoint Test M
SUMA
C1A27:09
Compressor: Component Failures
GO to Pinpoint Test N
SUMA
C1A27:63
Compressor: Circuit/Component Protection Time-Out
GO to Pinpoint Test N
SUMA
C1A27:98
Compressor: Component Or System Over Temperature
GO to Pinpoint Test N
SUMA
C1A27:99
Compressor: Exceeded Learning Limit
GO to Pinpoint Test N
SUMA
C1A31:63
Left Front Corner Valve: Circuit/Component Protection Time-Out
GO to Pinpoint Test AD
SUMA
C1A32:63
Right Front Corner Valve: Circuit/Component Protection Time-Out
GO to Pinpoint Test AD
SUMA
C1A33:63
Left Rear Corner Valve: Circuit/Component Protection Time-Out
GO to Pinpoint Test AD
SUMA
C1A34:63
Right Rear Corner Valve: Circuit/Component Protection Time-Out
GO to Pinpoint Test AD
SUMA
C1A36:63
Exhaust Valve: Circuit/Component Protection Time-Out
GO to Pinpoint Test AD
SUMA
U0100:87
Lost Communication With ECM / PCM: Missing Message
GO to Pinpoint Test O
SUMA
U0121:87
Lost Communication With Anti-Lock Brake System (ABS) Control Module: Missing Message
GO to Pinpoint Test P
SUMA
U0122:87
Lost Communication With Vehicle Dynamics Control Module: Missing Message
GO to Pinpoint Test Q
SUMA
U0131:87
Lost Communication With Power Steering Control Module "A": Missing Message
GO to Pinpoint Test R
SUMA
U0140:87
Lost Communication With Body Control Module: Missing Message
GO to Pinpoint Test S
SUMA
U0146:87
Lost Communication With Serial Data Gateway "A": Missing Message
GO to Pinpoint Test T
SUMA
U0401:00
Invalid Data Received from ECM/PCM A: No Sub Type Information
GO to Pinpoint Test X
SUMA
U0415:00
Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information
GO to Pinpoint Test Y
SUMA
U0416:00
Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information
GO to Pinpoint Test Z
SUMA
U0420:00
Invalid Data Received from Power Steering Control Module "A": No Sub Type Information
GO to Pinpoint Test AA
SUMA
U0422:00
Invalid Data Received From Body Control Module: No Sub Type Information
GO to Pinpoint Test AB
SUMA
U0447:00
Invalid Data Received From Serial Data Gateway "A": No Sub Type Information
GO to Pinpoint Test AC
SUMA
U2100:00
Initial Configuration Not Complete: No Sub Type Information
GO to Pinpoint Test V
SUMA
U2100:56
Initial Configuration Not Complete: Invalid/Incompatible Configuration
GO to Pinpoint Test V
SUMA
U3000:04
Control Module: System Internal Failures
GO to Pinpoint Test V
SUMA
U3000:45
Control Module: Program Memory Failure
GO to Pinpoint Test V
SUMA
U3000:46
Control Module: Calibration/Parameter Memory Failure
GO to Pinpoint Test V
SUMA
U3000:47
Control Module: Watchdog/Safety µC Failure
GO to Pinpoint Test V
SUMA
U3000:48
Control Module: Supervision Software Failure
GO to Pinpoint Test V
SUMA
U3003:16
Battery Voltage: Circuit Voltage Below Threshold
GO to Pinpoint Test A
SUMA
U3003:17
Battery Voltage: Circuit Voltage Above Threshold
GO to Pinpoint Test B
Symptom Chart
Symptom Chart: Vehicle Dynamic Suspension
Diagnostics
in this manual assume a certain skill level and knowledge of
Ford-specific diagnostic practices...