2000 f150 5.4 manual floor shift when ya shift into 4hi no lights no 4x4 4lo lights come on 4x4 starts to work but then snaps and pops like it dropped a gear like the gear is missing a tooth. anyone have an idea whether its the transfer case or something else?

 

I think it's still a vacuum activated system for the front axle no matter if it's a lever shifted T case or the electric shifted T case?

So, it might be a vacuum leak to the front axle connect?

I had a 97 F150 4x4 with the electric shift, but it still had vacuum lines going to the front axle.

The only difference was the electric motor to shift the T case instead of a manual lever..

Good luck!

Mitch

 

UPDATE transfer case is toast drained the fluid looks like metal soup.

 

Yikes! Well now you know what to repair. Thanks for letting us know.