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Message: <blockquote data-quote="Donk74" data-source="post: 210324" data-attributes="member: 4721">IWE optionsGregReally like your idea on this.  I fought the old version of this system on my Excursion for years till I gave up and installed manual Warn hubs.  I think your upgrades will go a long way towards keeping the IWE system on the Raptor working for years.I must be missing something though.  I always though this system works backwards from how you and pirate air are describing???  I thought when the 4X4 is activated the solenoid valve and Check Valve work to blocks off the vent and pulls a vacuum on the hubs through the lines by connecting them to the vacuum reservoir. The vacuum on the actuator diaphragm is what engages the locking ring connecting the axel shafts to the wheels.  No vacuum = free wheel, Vacuum = Locked.  If I understand pirate air correctly though if there is no vacuum to the hubs they are lock?  But I swear when I had my truck up on stands to rotate the tiers the fronts spun freely which to me meant the hubs were not locked even though there was no vacuum (engine off)???? Educate me some more pirate, please  Anyway, I’ve attached a copy of the vacuum line routing of the system for reference.  And either way the system works it’s a bad idea to relocate the vent tubes anywhere near the intake track, either air box or CAI tube. So I retract my previous suggestion about tapping into the CAI tube lines.  The vacuum of the intake might just be enough screw with the system (oops).After looking at the microfiche (yea I’m fricking old you young punks, PULL UP YOU DAMN PANTS!!!) of the tube and crawling under my truck, bending up SS tube using the semi ridged OEM plastic crap as a template would be sweet and it would give you the option of using Swagelok compression fitting which would pretty much negate any leak concerns.  If you really want to go hog wild you can even get custom flex braided tubing from Swagelok (or others) with the NPT fitting for the hub on one end and the right compression fitting on the other end to connect to the SS tube.The other think I came across is another option for your vent.  McMaster-Carr carries Submersible Breather Vents that will prevent water/liquids from entering the system as well as filtering out particles down to 3 microns.  I’ve used these at work on a few NEMA enclosures and they have done their job.  Mount one of these on the vent port of the solenoid and your done.Thanks All</blockquote>

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