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Discussion Starter · #1 ·
When i rev my 1990 gt AOD i hear a slight rattle on the left side now i was thinking it was just the heat shield but could it be anything else major have not had a chance to put it on a lift yet
 

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Try cleaning your MAF and putting in some high octane fuel . . it could be pinging.
 

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Oops . . not sure you have an MAF. Try the high octane anyway. I had the same sound and it turned out to be pinging
 
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