Does this sound like a failing IWE?

[tplee]

I get a click or pop after I just get rolling. It used to only doing it occasionally, now it seems to do it every time. It sounds like it is coming from the front end. It does it whether the wheels are straight or turned, and whether in 2hi or 4hi. Neither drive mode nor turning seems to affect it at all. It just gives a click or a pop, but there seems to be no other effect. Four wheel drive works fine, and it doesn't continue doing it after rolling... Only just after the initial take off.... And sometimes when coming to a stop.

My truck is a '14 SCrew w/ just under 60 miles. It rarely goes off road. I have been running at mid perch for a around a year. Have been running 37" BFG KM2 on OEM beedlocks for about 8 months. I am the only owner.

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[tplee]

Never mind...troubleshot the IWE per the workshop manual...IWE's work fine. Moving to a new thread to discuss further...

 

[tltoronto]

sounds like an IWE solenoid issue. Buddy had an F150 and we repaired his similar issues with a new solenoid. It is located on the left side of the brake master cylinder (right side of master cylinder when facing it.) All the vaccum lines will go into it. You can bypass it and test the system wether its the solenoid or not.