What does Ford IWE stand for?
Integrated Wheel End
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.
When did Ford start using vacuum hubs?
This design was first introduced in 2004 applications and worked opposite of the earlier Ford design CVH actuators. For this design, the vacuum is placed on the system unlocking the hubs while the truck runs in 2-wheel drive mode.
How does Ford vacuum locking hubs work?
PVH hubs use the same vacuum reservoir as the HVAC system. They lock in 4WD when vacuum is applied and unlock when vacuum is withheld. They use one solenoid that’s controlled by the transfer case control module (TCCM). Easy-peasy.
What is an IWE vacuum line?
March 31, 2020. 6 min read. For the uninitiated, it is important to understand what IWE is. Ford’s Integrated Wheel End (IWE) system locks and unlocks the front hubs from 2WD to 4WD.
Why does my F150 make a noise when I accelerate?
The power steering pump is a common reason why Your Ford F-150 can whine as You accelerate. If it becomes too low on fluid, it will make a lot of noise. You have to check the level of the fluid and fill it back to the fill line. The power steering pump is a common reason why your ford f150 can whine as you accelerate.
What does IWE check valve do?
And Then Some. When the system is working correctly, vacuum is placed on the system unlocking the hubs while the truck is running. The first check valve locks the vacuum at the highest vacuum that is exerted from the engine from that check valve down. …
Why do you have to lock Ford hubs?
Freewheeling hubs or locking hubs engage or disengage the front axle half shaft from the hub of the front wheels. This allows the 4WD to behave in the same fashion as a conventional two-wheel drive car with only the rear wheels being ‘driven’.
Is it bad to drive around with your hubs locked?
It does no harm to run around with the hubs locked and front drive disengaged for the short term. Over the longrun, though, you’ll average worse gas mileage, and have increased wear and tear on the drive train components and tires.
How does the IWE solenoid work?
When the engine is started and running, vacuum is exerted on the entire system, unlocking the IWE actuators. When the engine is turned off or 4WD is engaged (either by floor shifter of dial selector) vacuum is released by the IWE solenoid to the actuators at the wheels.