Hey everyone, I know the IWE is a known issue with these trucks and i think i am experiencing some issues. So i was driving and out of the blue my front end stated making a lot of noise and i could feel it in my steering wheel. My dad just got done fixing the vacuum IWE lines on his a couple weeks ago so that made me think to engage the 4x4 to see if it made it go away. As soon as i engaged the 4x4 the noise stopped and has not come back even with 4x4 turned off. So i am thinking its not the vacuum lines because if it was it would do it all the time when the 4x4 was not engaged. Any thoughts on what exactly with the IWE is wrong?