2000 Chevy Impala Loud idle noise

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CMDORIOTT
  • MEMBER
  • 1 POST
Noises problem
2000 Chevy Impala Two Wheel Drive Automatic 193000 miles

My car starts right up - soon there is a LOUD squealing sound for about 10 or 15 seconds. Then it's done and the car drives fine. You only hear this upon starting it. Occasionally it doesn't do it at all. There are no codes or messages. The Chev dealer replaced a part yesterday but that did not fix the problem.
Oct 7, 2009 at 11:55 PM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Has serpintine been replaced in last 30K miles. Was it checked also belt tensioner O.K.?
Oct 8, 2009 at 3:14 AM
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