IWE help
Thread Starter
2015 F150 3.5 Ecoboost
Joined: Dec 2022
Posts: 7
Likes: 4
lol no the actually air box was only clipped into the front and not slide into the clips in the back…
I mean I would think that fixed it😂
Junior Member
Joined: Jul 2025
Posts: 8
Likes: 0
In your video, you mention "it could be your vacuum source". How do I troubleshoot the source? I only get about 14-15InMg, so at higher RPM when the vacuum drops, I don't think I'm maintaining enough vacuum to keep the IWEs from trying to engage. I test my father's vacuum and he's around 21 InMg at the source (same yr/model). I'm thinking I'm not creating enough vacuum to begin with. Everything has been replaced except my lines and reservoir (both tested, and holding vacuum).
Thanks for any input!
Thanks for any input!
2018 + are the years that had the vacuum delay feature to disengage the IWEs, a 2015 to 2017 "MAY" have had that TSB, or may not. My 2017 was one that had it before I bought it.
Humming sound would lean more towards a bearing than an IWE grinding.
Let's start again. Does the "humming" sound like this?
Ford IWE Operation and Grinding Noise Explanation - YouTube
Humming sound would lean more towards a bearing than an IWE grinding.
Let's start again. Does the "humming" sound like this?
Ford IWE Operation and Grinding Noise Explanation - YouTube