2003 Pontiac Sunfire

Noises problem
2003 Pontiac Sunfire 4 cyl Front Wheel Drive Automatic 134000 miles

Recently, whenever I hit the gas pedal, you hear a rattling sound. The car does not make this sound when it is idle or I hit the brakes. It only makes the sound when hitting the gas petal. The sound can be louder, or it may go away for a short time. The car is accelerating just fine, and no engine lights are on.
So, the car is running, but I am concerned what the rattling noise is associated with the gas pedal.
Any ideas?
October 20, 2009.

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