If you have 4 wheel drive, take off the center hub cap and look to see if there is a metal cap over the center wheel spindle. Mine was loose and would jingle every time I hit a bump. I just tried to crimp it a little tighter with a pair of pliers. Noise is gone...
On a 1999 Ford Expedition : A4WD ( Automatic four Wheel Drive ) delivers power to the rear wheels and if the rear wheels lose traction ( slip ) some of the power is transfered to the front wheels
Because there is something wrong with the accelerator. Is the rattle coming from the tire? It could be that you just broke your wheel studs and your tire is hardly holding on! Do not drive this car!!!
Coming from the drive wheels? Could be worn CV joints
You did not say what kind of vehicle it is. If it is a front wheel drive, it has drive axles and if the drive axle is going out, it will click especially when you turn the wheels.
No, Expedition's are all rear wheel drive.
check your serpentine drive belt for fraying.
All wheel drive has power going to all 4 wheels all the time 4 wheel drive has power going to 2 wheels and 4 wheels when it is selected
The 2011 Ford Expedition has rear wheel drive.
The 2002 Ford Expedition has rear wheel drive.
The 2009 Ford Expedition has rear wheel drive.
The 2008 Ford Expedition has rear wheel drive.
The 2001 Ford Expedition has rear wheel drive.