I HAVE A CHEVY TRACKER 2002 WITH A PROBLEM TO TURN THE STEERING WHEEL IT IS HARD AND ALSO IT MAKES A NOICE LIKE IF IT WAS METAL WITH METAL OR SOMETHING LIKE THAT,THE POWER STEERING FLUID IS OK, ANY IDEA OF WHAT COULD IT BE, THANKS IN ADVANCE.

hi Justine.
There some moments when the steering wheelbecomes stiff and hard to turn. From irregular servicing, lack of fluid oil to low tyre pressure or bad wheelalignment, any of these could be the cause. ... Under normal circumstances when the car is in good condition, the steering wheel is always flexible when turning.11 Sep 2014

What makes the steering wheel stiff? - Daily Monitor

www.monitor.co.ug/Business/Auto/What-makes-the-steering-wheel-stiff-/.../index.html
try this link.
Why Is My Steering Wheel Hard To Turn
or this.
3 Common Causes of Steering Wheel Hard to Turn Especially at Low Speeds...
or this one.
What causes steering wheel hard to turn

if wheels are cut to one side pull steering wheel to that side while turning key

97 geo tracker is not equipped with power steering. they where made so light that they just have steering assist which doesn't require power steering fluid or anything else. you will notice that when vehicle is parked or at slow speeds steering wheel is hard to turn. this is perfectly normal its just not power steering.

It could be the rack, bad tie rod ends, etc. Are you sure there is enough fluid in the system. If it's getting worse, you need to have a mechanic look at it. You don't want to lose steering when you are driving down the road.

ck. p.s hoses 4 leakage fill pump have someone turn wheel back & forth look 4 leak

Does it do the same going right? Have you checked the power steering fluid?

it sounds like a rubber bushing in the steering or suspension, also check the coil spring base at the struts

90 minutes. Steering wheel must be removed.

have some one start your car and turn the wheel back and forth and have them tell you when it gets tight. Then look for anything getting hung up on the steering arm, or anything at all

I have owned about 15 cars so far. ALL of the Chevy vehicles had developed problems with the ball joints / ball bearings. The most recent one was the one where I heard the rubbing noise. Unfortunately the front tire almost totally came off. It turned out to be the ball joints / ball bearings & the pinion. cost a couple thousand to fix. Get it checked. I saw another Chevy & that driver was NOT so lucky - their tire completely came off.