having a few problems?

[mikey8865]

ok i got a 2008 superduty its a wreck it was a rollover all has been fixed...but for some reason when i kick it in fourwheel drive the front dont kick in..so i lock in the front hubs...and it works...but it has a wierd high pitched sound in the front? any ideas...and also...when your truck goes into regen or as u call it does it pop up on the dash cleaning exhaust filter bc my dads does but mine dont any ideas? the 4x4 kinda scares me? makin that high pitch noise when u start to move?

[Hags]

No clue for noise and 4x4 maybe hose is off for auto lock or????? Your truck wont say cleaning exhaust filter unless you have the newest reflash from ford once you get reflash it will pop up and say it on dash. good luck with the 4x4

[dzchey21]

4wd might be the vacuum leak thats not letting the hubs lock in, hard to say without hearing it, but check the vacuum lines to the hubs, probably got cut or disconnected in the wreck,

[mikey8865]

alrite guys thanx alot of help...i figured maybe the noise is..the truck has been sitting for awhile since it was wrecked and getting built...maybe it just needs drove some more idk...4x4 works fine when locked in even noise and all...and also it has the middle console...do u know if u unbolt that..can u just put a middle seat there?..does it all just bolt rite up?

[dzchey21]

yeah its like 4 bolts
i think you can just unbolt it and put a jumper seat in there easy enough

[DavidPhillips]

Make sure it has oil in it.

[mikey8865]

ok i checked the front end...and i stuck my finger in it...has oil...its only when i lock in my hubs..and its only from like 10mph up....its a wierd sound i've never heard before..

[DavidPhillips]

I have not seen it on a Ford but on the Chevy we have seen a lot of them that the inner wheel bearing goes out. It starts with a noise but eventually the wheel comes off of the spindle on the inside.

Is there play in the wheel?

[zeddy]

lock your hubs, jack the front end up and spin the wheel. I bet the Squeal is comming from the seal on the yoke of the front diff, when it turns. I noticed the same thing today whe I was working on my truck. I dribbled a bit of 90w oil on the yoke at the seal and the squeal is gone. I dont know if that was right but its what I did.