2004 Pontiac Grand Am Logo
Posted on Jan 24, 2010
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Hum from front drivers side wheel bearing changed

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Anonymous

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  • Expert 289 Answers
  • Posted on Jan 25, 2010
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Joined: Nov 22, 2009
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Two possible problems both related to that bearing change. 1. Was the bearing packed with grease before it was installed? If not, another new bearing is required properly packed with grease. They don't come packed when you by the bearing, only lubed.
2. Incorrect torque on wheel bearing bolt. If you do not have the specs. a good rule of thumb is with the nut just slightly tight and the wheel and tire installed but jacked up, spin the tire by hand and tighten the bolt to a point that the tire will not make 1 full revolution. JUST! ie. 355 degrees.

Good luck

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