It starts to swerve to the left or right without turning the wheels almost like your swerving back and forth

Swerving not related to driver's use of alcohol usually is caused by bad or maladjusted front end parts. Have helper turn steering wheel back and forth just a little and you look under car for parts which move well and those which don't. If you find nothing loose, check ball joints or have them checked. Also check shocks and sway bar end links.

due to the awd you cant just jack up each wheel and spin it . when i road test for w/brg noise you listen for a slight whirring hum that increases and decreases with speed or sometime as you swerve back and forth you hear it as the vehical weight shifts side to side (right swerve left w'brg left swerve right w'brg) as a rule but not always . have a passenger sit in the back to help verify front or rear> dont guess and just replace one .
w'brg's come in three flavors cheap mid grade and premium.
the labour to change is the same. my advice dont end up paying for the labour twice buy the better or best , cheap parts cost more in the long run!

try a axle bearing swerve back & forth comes & goes if so 99% sure bad bearing

If you swerve the car back and forth and the sound dissapeers when swerving to the left( reducing the weight on front left tire) this could indicate a wheel bearing problem

Is this a front wheel drive car? If so, the noise may well be from a CV joint coming apart. Given the extent of parts you have replaced, not much is left. Also might look to see if something is rubbing on a part of the rotating wheel / hub assembly.

Try swerving back and forth when you hear this. If the pitch changes while swerving one way or the other, it is probably the wheel bearing and it needs a new hub. Not too hard to change.

Check ball joints and tie rod ends for play. Jack the truck up on the frame and try to move the wheel up and down for ball joints and side ti side for tie rod ends. Also make sure you check the idler arm on passenger side and pitman arm on steering box. None of the parts should any play whatsoever. If there is any play in them when you try to move them then replace them.
There could also be excessive play in the steering box but that shouldn't make it swerve back and forth. That would just let it wander to one side or the other until you corrected it by turning the wheel. Hope this helps.

There is a wheel bearing inside the hub as well. They will sell those bearings I've bought them before. Chances are you need to talk to a better parts guy. You can tell if it's a wheel bearing by taking the vehicle up to a speed where the noise is clearly audible. Then swerve the vehicle back and forth in your lane. If the sound changes or goes away when you swerve, it's a wheel bearing. Obviously we're not trying to crash the vehicle here, so don't get over aggressive with the swerving.

Hello, from the sounds of it you have a wheel bearing out. One way to usually verify that it is a wheel bearing is to drive down that road and swerve side to side to transfer the wieght of the vehicle back and forth. If it is a wheel bearing you will notice a change in the sound. If you hear a change in the sound figure out which side it is coming from. If when you swerve right and it's louder or makes more noice then it will be the left bearing and vice versa.

could be tie rod ends. but you should have a toyota tech check them.

hope this helped.
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