What's wrong with my 2004 Ford Explorer?

What's wrong with my 2004 Ford Explorer?

Added (1). It keeps making like a whining noise when i turn and it makes a clunking noise and it will jolt in 4wd high. I want to get it fixed but i don't want to pay someone to figure it out.

Not a lot to go on but my first guess is the whining noise and the clunking are happening when you're making sharp turns in 4WD. The cause is making sharp turns in 4WD. The whining is the PS pump and the clunking is the front axle straining because you should never make sharp turns while 4WD is engaged. Ease off those sharp turns when 4WD is engaged and both symptoms will probably disappear.