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Old 04-02-2009, 05:46 PM   #42
KWAK
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Join Date: Jun 2003
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Posts: 18
Rattle, not pinging

I've got a similar sound coming around the same RPM. It sounds more like a rattle/buzzing. Like a piece of sheet metal vibrating at resonance. It never happens while in park or nuetral, only onder load. I checked my cat heatshield, and could not find anything wrong there. I have had the P0133 code come on 9 times over the last 20K miles. Maybe i should change it, and see if that eliminates the rattle.
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