I have a winding noise on passenger side when i put it in 4wd it stops can somebody help

winding noise is starter

engaging 4wd at speed is not recommended as the syncro set up is for low speed operation only Using 4wd on hard surfaces especially with your tyres does not allow the wheels to slip and so you get torque wind up in the transmission. This prevents the gears from disengaging as there is excessive load on the teeth. To unload the wind up either drive on a grass/ gravel/ slippery surface or stop and allow the vehicle to run backwards. IT all amounts to driving technique and knowing when and where to engage 4wd. There are plenty of books /magazines that explain the damage that will be done to the vehicle running gear if run in 4wd for long periods on hard surface roads.

DO not use 4wd on dry pavement. do not. its for
ice, snow,or dirt.
if you do that and make a turn , it winds up the driveline. damage.
put in the dirt, at side of road, and get it out of 4wd.
read the manual on part time 4wd, its not AWD and has no center diferental to drive on hard pavement.

see stop driving. ..here


http://www.fixkick.com/part-time-test.html

RTM then RTM again......

Yes it can but it takes a trained technician to ID what exactly is the source of the noise as well as special equipment.

driving in 4wd on hard surfaces produces what is known as torque wind up as the wheels cannot slip so the variations of distance going around corners , dips in the road etc place considerable strain on the transmission , transfer case , drive lines and diffs
that is why it is difficult to get out of 4wd unless you drive with 2 wheels on a grass verge to relieve that torque wind up
as for the noise check wheel bearings and the cv ("U") joint at that wheel as there appears a proble where the dog teeth in the hub are not engaging properly or are jumping out of engagement

I'd check the passenger side mirror first, make sure it is tight to the window frame, no gaps. It causes a wind noise or whistle. It could be from the outside of the truck, try to pin point. Does noise go away with either window down? Does noise get louder turning in one direction (wheel bearing)? Does it get worse then seem better (could be tire noise)? Eliminate fan motor, and radio. Does it get worse with vehicle speed or just engine speed?

I had this problem too. It could be a few different things but all the same result, loss of vacuum causing the 4wd to start to engage but not completely. The teeth on the clutch in the locking hub are grinding on the spline of the cv shaft as you lose vacuum and it tries to go into 4wd which is the default if everything would fail. 1st thing could be either of the 4wd locking hubs (approx $200 ea., located on the back side of each front spindle), check them to make sure the vacuum lines on the top of it are still attached these require the brakes, tie rod and upper ball joint to be removed if replacing, 2nd is the 4wd vacuum actuator (approx. $40 located on the firewall passenger side behind the battery) Ford has replaced this part with a modified one that has a little roof on it to stop the water that drips of the hood when it rains and makes it short out, this is very easy to replace (2 nuts) and last if both the above are working just fine would be to trace all the vacuum lines for a break unfortunately it is a 6-8 foot line for all the front 4wd and it costs approx. $100 if you have to replace. Not very difficult just time consuming. Hope some or all of this helps.

sounds like a typical whel bearing failure noise

sounds like your differential is going. alltime 4wd?

wind window down hold top of door frame put your knee on door and pull frame towards you this will give a tighter seal