2000 Pontiac Grand Prix strange buzzing noise

2000 PONTIAC GRAND PRIX
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SUNSCHICK05
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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 4:55 PM
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MHPAUTOS
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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 28, 2010 at 2:53 AM