What are IWE actuators?
What are IWE actuators?
The hub actuators connect the axle shaft to the wheel hub automatically when 4WD is selected. More accurately, they disconnect the axle and hub when the 4WD system is not engaged, reducing driveline loss caused by spinning an otherwise non-rotating axle.
How does the IWE work on a Ford F-150?
The automatic hub lock that is installed on later Ford F-150 trucks is the IWE system. Like the CVH, the IWE is a single-solenoid vacuum blocker, but it works in the opposite direction. Vacuum pulls the hub up to 2WD, and the absence of vacuum outputs it to 4WD by default. How do I know if my 4×4 is engaged?
Why do I need to replace actuators on my F150 F250?
The actuators are what engage your front wheels to the transfer case. Overtime the gears inside can wear down causing the front wheels to not lock in. A bad IWE solenoid can also cause the gears to wear improperly, if this is the case you need to replace the IWE solenoid as well, otherwise the actuators you install will wear out again.
Why do IWE actuators need to be replaced?
A bad IWE solenoid can also cause the gears to wear improperly, if this is the case you need to replace the IWE solenoid as well, otherwise the actuators you install will wear out again. Symptoms of bad actuators include a whine from the front hubs as well as the front wheels not locking in.
Why is the 4WD on my Ford F150 not working?
The 4WD system of your Ford F150 can fail to engage due to any of the following reasons: This article will also cover how you can troubleshoot and diagnose the 4WD problem without any tools, as well as other common 4WD problems found on the F150 Ford Pickup. So let’s dig into what could have gone wrong and look at the obvious culprits.
The automatic hub lock that is installed on later Ford F-150 trucks is the IWE system. Like the CVH, the IWE is a single-solenoid vacuum blocker, but it works in the opposite direction. Vacuum pulls the hub up to 2WD, and the absence of vacuum outputs it to 4WD by default. How do I know if my 4×4 is engaged?
What are the actuators on a Ford F-150?
This article applies to the Ford F-150 (2004-2014) and the F-250, F-350 Super Duty (2005-2014). The actuators are what engage your front wheels to the transfer case. Overtime the gears inside can wear down causing the front wheels to not lock in.
A bad IWE solenoid can also cause the gears to wear improperly, if this is the case you need to replace the IWE solenoid as well, otherwise the actuators you install will wear out again. Symptoms of bad actuators include a whine from the front hubs as well as the front wheels not locking in.
How does the integrated wheel end ( IWE ) system work?
For the uninitiated, Ford’s Integrated Wheel End (IWE) system is what locks and unlocks the front hubs when you change back and forth from 2WD and 4WD. The system works off of vacuum and functions a little counter-intuitively in that it uses vacuum to keep the hubs unlocked for 2WD and shuts off the vacuum to lock the front hubs for 4WD.
