WHEN TURING KNOCKING SOUND COMMING FROM FRONT LEFT, CAN FEEL IT THROUGH THE STEERING WHEEL, HELP, THANK YOU , I HAVE A 2001 CHEVY TAHOE

Do you feel it in the steering wheel? if so it could be the intermediate steering shaft. If not it could be a sway bar link or bushing.

Hi there - S Wilkins here.
Could be a front hub bearing or axle CV joint.
You may be able to raise the front wheels and move them around and find what is loose.

It sounds like a ball joint is worn, possibly the rack end ball joint or tie rod end.
With the bumpy ride it could also be that the front shock absorber has failed.
Jack the front wheel up on each side in turn, grab the wheel at each side and shake it back and forth as hard as you can. If you hear or feel looseness, the problem is in the steering, as above.
Then shake the wheel while holding it at top and bottom. If you feel looseness then, the problem is in the front suspension wishbones.
Repeat this on the other front wheel. Let it down on the ground, then bounce each front corner up and down as hard as you can (you might have to have a second person with you doing this). If you hear a clunk or feel excessive bounciness, it is the shock absorber. When bouncing like this, the car should resist, and not keep bouncing when you let go.

AWD problem? Maybe, it depends on whether your car is a manual or automatic.
Manual: clicking and rattling is commonly bearing wear in the transfer case. There's three bearings that have to replaced. The transfer case can be removed without taking the transmission out.

Automatic: The car is normally front wheel drive, and sensors control the transfer case (NOT the same as the manual) AWD clutches to connect the rear drive. This clutch system may be the issue. The symptom is more commonly a grinding sound when turning.

HOWEVER ...
The knocking /clicking sound you feel in the steering wheel is the important diagnostic. This is often caused by a worn front axle INNER CV joint. What happens is the wear makes the CV jam as it rotates. Wear can result in steering wheel shimmy, similar to an out of balance wheel/tire.

It can also result in heavy steering on turns. It's simple to check. Jack up each front wheel, and check for rotational slop between the axle and the CV carrier on the transmission. Anything more than 2mm means youneed new axles.

Could be a ball joint , tie rod , bad tire or wheel bearing. That's pretty much everything. Unless its front wheel drive? Then a CV joint can be added to the list :)

rotate steering wheel opposite of lock and turn turn key. good luck

heve you checked your steering fluid? if the fluid is of check the bearing of steering pump and also the bearing of the tensioner.

If the knocking sound is coming from the steering wheel area itself, then I believe it's the nylon bushing in the steering colum. My friend had the same problem with his truck. The other trucks we work on at the shop seem to have this common problem.

If it's sounds like its outside the truck, have the tie rod ends checked out.

The knocking noise on your van is front sway bar bushings

Have a mechanic check lower control arm bushing at the rear of the control arm.It is a horizontal bushing retained by a vertical bolt clamping it to frame.The tire will move more forward and back more than it should during braking. canuck mechanic.