Question about 2003 Chevrolet Monte Carlo

4 Answers

Loud screeching noise upon starting

Upon starting engine, I hear a loud screeching noise. It disappears after seveal seconds. It was in the garage for 3 days. They heard the noise only slightly 1 time and don't know what the problem is. Any suggestions?

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  • Master
  • 396 Answers

It is your serpentine belt slipping on one of the metal pulleys and the friction is causing the high pitch screech. The belt may need to be tightened or replaced, which is an easy fix.

Posted on Jul 28, 2010

  • Al Spaulding
    Al Spaulding Mar 24, 2015

    Im having the same issue. Going to check that belt tomorrow.

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  • Chevrolet Master
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It could be a belt problem or the starter .
Take a bar of soap with the engine running and touch it to the side of the belt .If the noise goe's away right away its belt slip .However their is a belt tensioner in the system spring loaded .It should move freely on hang ups .
If this dosn't correct the noise then its likely the starter the bearings go sometimes and will screach it will still start but its on the way out better to replace it now then to get stuck someware you don't want or have time to be .

Posted on Mar 24, 2015

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  • Contributor
  • 3 Answers

Possible clearance between starter drive and flex plate too tight.

Posted on Mar 24, 2015

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Could be the starter

Posted on Jul 28, 2010

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