Hey everyone,

My 2018 F-150 SuperCab has given me zero issues since the day I picked it up.
However, yesterday, while driving home from work, I noticed a grinding in the front end (which I can feel through the gas pedal) when I accelerate to about 35-40 km/h, in 2WD on flat-ish ground, and is damn-near constant when going uphill, even a slight incline any speed above 50km/h. It only stops when I take my foot off the gas.
I decided to try 4WD on the way to work to see if I still have the issue, but I didn't hear anything, as far as I noticed. I switched it back to 2WD for the drive home this afternoon and was grinding at about 40km/h again.

I'm just wondering if anyone has had this issue before and what could be done to alleviate it.
Thanks in advance!
-Mike

 

Your IWE's are not fully disengaging, you are losing vacuum somewhere.

 

I'd get an UNLIT propane torch and following the vacuum lines until you hear a change in idle. That will pin point the leak.

 

We actually have an article on troubleshooting the IWE system.

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