hearing noise from hood of car

148,000 MILES
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JOYA
  • MEMBER
  • 1 POST
My Toyota Camry has 148,000 miles and I take excellent care of it. For the last 10,000 miles I've been hearing a rhythmic noise from the hood of the car when idle (at a traffic light) or even when driving. At traffic lights or when idle it's quite loud and I went to the mechanic today - who said it's the bearings from the alternators. I saw the belts which are next to the alternator and they look perfectly fine. Again, the noise was there before, it's just gotten louder in the last 1,000 miles.
Aug 12, 2013 at 7:55 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
A bad alternator bearing does not affect the belt and is a plausible cause.

Remove the belt and manually turn the alternator to test if the bearing is noisy. Start engine and note if noise goes away.
Aug 12, 2013 at 5:16 PM
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