is there a good way to isolate witch wheel bearing is bad ? if i start replacing all it will get very $$$

 

The one that makes noise or is loose when you jack that wheel off the ground and shake it.

You really need to be more specific if you want a good answer.

 

why do you think a wheel bearing is bad? do you have the 3 amigos?

 

read your ABS codes.

 

Also if you spin each wheel individually while the car is jacked up. Hold your hand on the spring...You can feel/hear a grinding sound. Thats the wheel with the bad hub. The hub has to be really worn out to feel any movement top to bottom.

Check eBay for a used hub. New hubs run about $400. Used ones are $60 to $100 on eBay. Its more likely your front hubs are worn out...from steering, braking and driving. My front right when bad at about 75k. Its a 3 hour job, by the time your beat off the disc brake rotor, but totally doable. Be gental taking out the ABS sensor line. Rent a hub puller from an auto parts store for free.

 

Have you tried jacking up 1 wheel at a time and wiggle the tire from top to bottom?
Are you sure it is a wheel bearing and not one of your brakes dragging?

 

thanks i will try all the good info ! thanks again