DLeGiT

Since yesterday my truck makes a rattling noise like I'm dragging a chain sounds like it coming from the front end it only happens when accelerating and it doesn't do it when I put it into 4wd it only happens when it's in 2wd I suspected maybe a vac hose I checked them they appear to be fine and they were replaced a few months back any suggestions doesn't appear to effect the driving it's just annoying and loud

bourgeois1269

Maybe a loose bolt rattling around

lewissa81

It seems like your front hubs are trying to engage. There are multiple conditions that can cause this. Check out this thread. It can help you troubleshoot the issue.
https://www.f150forum.com/f72/how-di...m-esof-186872/