I was wondering how the 4wd works when you delete the iwe and the vacuum lines? I get that it's going to be like an awd car but I have grinding noise from them I've changed all the main lines the check valve and solenoid My concern is if I delete this is my four-wheel drive still going to work properly and how does it work with the vacuum lines do I just remove the whole system??

 

You’re CVs will be engaged all the time, spinning/adding drag even though the transfer case is not sending them power. It will decrease your fuel economy and likely increase wear

take a look at these:
https://www.rcvperformance.com/rcv-ultimate-iwe-eliminator-set-for-ford-raptor-10-up-f-150-04-up.html

and this thread:
https://www.f150online.com/forums/ar...then-some.html

 

Not enough punctuation, but I'll see if I made sense of your run on sentence -paragraph
1) It will not be like an AWD car
2) If you add the delete kit, your 4x4 will work perfectly fine
3) it does not affect your vacuum system. You can remove the vacuum lines, etc. if you want but is unnecessary. You'll save weight on the truck and see improved mpg (kidding about the last part of course).
4) You do not remove anything except for the IWE, hence the name, IWE Delete Kit.

Save yourself time and money. Disconnect the electrical connection from the vacuum solenoid. This will keep the IWE engaged full time, just like the IWE Delete Kit will do.

All the kit does is keep the hub engaged to the axle. Therefore the front driveline is rotating with the wheels but still disconnected from the transfer case, therefore not in 4x4.
Everything stated by justav6 is correct.

I've generalized the statements as I don't know what vehicle you are driving. I'll assume 2015+ but people post in the wrong sub forums every day. If yes, 2015+, everything stated is true.

For future responses, please take a minute to compose your thoughts and use a little bit of punctuation.

 

Your out of line, for a first reply.
16 .....gave all the correct info to help the poster understand what, how and why it can be done..
Good luck.

 

Couldn't you just unplug the vacuum lines from the hubs and put a cap on the hub instead of doing this?

 

I believe that's what Ford chose to do as the "fix".

 

I installed the RCV kit and it's super nice. It has one solid steel ring to hold it all together. You can do each side in an hour or two so it's cheap insurance. Nothing movable.

Unplugging the vacuum lines will work though.