2000 Pontiac Grand Prix strange buzzing noise

2000 PONTIAC GRAND PRIX
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SUNSCHICK05
  • MEMBER
  • 1 POST
Noises problem
2000 Pontiac Grand Prix Automatic

107,000 My car sometimes makes this buzzing sound even when the car is off. I can't see anything still running when I look under the hood, so I have no idea what it could be. It sounds like it's coming from the front right side. Any ideas on what it could be?
Feb 27, 2010 at 8:55 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

Run a scan and see if you have any unresolved purge valve or tank venting system problems, check this out.

mark (mhpautos)
Feb 27, 2010 at 6:53 PM
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