having problems with my 4x4 . i tried to engage it when i was leaving my house and when i got half way down my street (100 feet or so) i could hear and kinda feel a fairly loud pop come from the drivers front . shortly after that i was turning right at a stop sign and again i could here and feel it kinda like it's binding up or not fully engaging .. this happened a few time more through out the day when turning , and it always seemed like it was the front drivers side... anyone know or have had similer problems ? any help would be great , we got about a foot of snow last night so i need my 4x4 working....please help guys

 

Unless you have a TON of miles on it, a 2007 should still be under warranty - take it to the dealer. It probably needs an IWE.

 

yea your right , it is under warranty still exept i have a 6'' lift .so thats why i was trying to figure out what might be the problem before i go to the stealership...i dont think the lift is to blame because i used my 4x4 alot last winter without any problems... could you explain an IWE ?
thanks

 

anyone else with idea's ? i would really apreciate it

 

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

 

I was having that same problem on my 04, took it to my mechanic, ended up being the vacuum line for the 4x4.

 

mine does the same it pops out in drive but it works fine in reverse the ford dealer told me it was the transfer case im gonna check all the vacc lines iv replaced both iwe's

 

I would check Shift fork in fron Axle.

I went throught all the same stuff you guys did. I found the shift fork wore out.

Mark

 

...but i don't think the 2004 and up trucks have the shift fork in the front diff...is that the fork u mean?

 

I had to replace it on my 03'. I do not know if 04' are the same...but what you discribed sounded just like mine.
Mark

 

The 04+ trucks use integrated wheel ends, not a lock in the differential.