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Old Sep 4, 2003 | 10:00 PM
  #5  
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Gasoline Fumes
Automotive Enthusiast
 
Joined: Mar 2002
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From: New York State
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It's not very likely for your engine to ping/knock while idling. Engines ping under load, like accelerating or going up hills. It's kind of like a knocking or rattling noise.
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