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Humming Noise?

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  #11  
Old 01-23-2010, 01:49 PM
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Originally Posted by ohsofly View Post
Nope, but the flipping of it in the past certainly could have. the good thing is you can get new berrings/races/seals and the tool to remove/install them in the rotor for less than a hundred bucks. Change the races too, not just the old berrings. You are lucky you dont have a 4x4 they cost alot more.
Great, thats good news. Change the races also? what are the "races".
 
  #12  
Old 01-23-2010, 01:52 PM
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Originally Posted by swartlkk View Post
It most likely is a front wheel bearing going bad. You may be able to hear a difference when turning either right or left. If the noise gets louder when turning left, the right front is the source. If the noise gets louder when turning right, the left front is the source.

I just went through this on my Rainier. I could not tell a difference in the noise turning either direction, but I could definitely hear it more on the driver side. Removed the driver side hub and sure enough it was the source of the problem. No wobble or even rough running when turned slow, but turn it quickly and it would speak up a bit.
Oh and also I drove the truck today and its the drivers side. When I turn right i hear it, but not when I turn left.

THANKS
 
  #13  
Old 01-23-2010, 02:15 PM
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It's got to be your bearings, I just changed mine because of the same reason. It's real easy to put new bearings in. Be sure to pack the new bearings with some good grease and you should be fine
 
  #14  
Old 01-23-2010, 02:53 PM
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Ok, so should i just buy the bearings for one side?

Or do i HAVE to buy the whole hub assembly?
 
  #15  
Old 01-23-2010, 03:58 PM
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On a 2wd 2001, you have to buy the entire hub assembly.
 
  #16  
Old 01-23-2010, 04:05 PM
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I dont think thats right. I just changed both sides of the rotor bearings and I have a 2wd.
 
  #17  
Old 01-23-2010, 04:34 PM
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You have to replace the whole hub assembly.

speterson1011, I am not sure what you have on the front of your truck, but the stock front hubs for your year are also one piece contained, bolted on with three bolts through the steering knuckle and are not rebuild-able or serviceable.
 
  #18  
Old 01-23-2010, 05:39 PM
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Originally Posted by reytx1 View Post
Ok, so should i just buy the bearings for one side?

Or do i HAVE to buy the whole hub assembly?
I said this on page 1, the hub is one piece, you have to replace the whole thing. It's also expensive. About $212.00 from GM.
 
  #19  
Old 01-23-2010, 05:44 PM
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I'm sorry guys I forgot I switched the whole rotor assembly when I did the spindle lift I completely forgot. I dont have the blazer rotor assembly. What a wake up call lol
 
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