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Whirling noise during startup

Tiny
SEANALD2006
  • MEMBER
  • 1999 CHEVROLET CAVALIER
  • 150,000 MILES
When I start my car just after the engine turns over it starts to make a whirling noise. The noise sounds like it is coming from the top rear of the engine compartment. It sounds like plastic grinding. It lasts for 1-2 seconds then goes away. The car runs fine afterwards.
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Tuesday, December 20th, 2011 AT 5:36 PM

3 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Use a tube of some kind to ear to try and isolate noise. Also harbor freight has a stethoscope for $5 you could try.
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Tuesday, December 20th, 2011 AT 6:15 PM
Tiny
SEANALD2006
  • MEMBER
  • 1 POST
Used a stethoscope on the noise. It only makes the noise when the car is cold. The noise seems to be coming from the top right of the engine right by the fuel rail. Could it be an injector?
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Tuesday, December 20th, 2011 AT 7:58 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
With auto stethescope you can pinpoint the injector and listen.
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Wednesday, December 21st, 2011 AT 8:22 AM

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