When I turn the 4 wheel drive button to 4 wheel high, nothing happens. It won't engage in 4 wheel high or low. I put the truck in netural for low 4 wheel drive, but nothing happens.

The truck is a 2007 and I noticed once before that it didn't want to engage in 4 wheel drive, but after a while it started working. Now I can't get it in at all. Is there a fuse that could be out.

 

Im having the same issue. There are a few 4wd fuses but mine are good.

Im taking the truck to a shop on Thursday so Ill find out then whats wrong. Hopefully something cheap and easy.

 

https://www.f150forum.com/f6/4wd-doe...rk-help-82819/

I have been having the same problem, looked for broken vacuum lines, checked fuses etc. Found a tap with a rubber mallet on the actuator motor got things working again.

 

isn't the 4x4 light supposed to blink on the dash when this system is malfunctioning? Is that happening right now?

 

I'm having the same problem but mines a 98 with manual 4x4 shift

 

I am having the same isue with my 1997 f150. I went out to use 4x4 and it wouldnt go into any 4H or 4L. Then I have a light on my dash that is orange with a guy in a seatbelt with airbag in front of him. flashes on and off. Then I also can not turn off my tail light. I am stumped at what is going on here. any info would be great.

 

Fuse! Probably a fuse! My 03 did that. I'd have to switch it into 4H turn the truck off, and then turn it back on. Then it seemed to work. Then i realized it was a square fuse.

 

Mine ended up being something in the computer. I took it to a shop and they cleared codes and now the 4wd works.

Too bad the rear end is shot and the spark plugs needed replacing or it wouldve been a cheap and easy fix.