IWE System
The IWE system consists of the following:
| 1 | IWE s (spring loaded vacuum hubs) |
|---|---|
| 2 | Vacuum hoses |
| 3 | IWE solenoid |
| 4 | Vacuum reservoir |
The IWE system uses vacuum hubs that engage the front wheel hubs to the front halfshafts or disengage the front wheel hubs from the front halfshafts.
The IWE solenoid receives engine vacuum from the vacuum reservoir.
When the 4WD system is in 2WD mode, the 4X4 control module supplies a ground path to the IWE solenoid to apply vacuum to the IWEs (disengaging the front hubs from the front halfshafts). In 4WD mode, the 4X4 control module does not supply the ground path to the IWE solenoid, vacuum is not applied to the IWEs and an internal spring keeps the front hubs engaged to the front halfshafts.