Thread: 7.3 unusual knock - detonation??
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Old 11-16-2007, 10:01 PM
Quadrunner Quadrunner is offline
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Join Date: Oct 2007
Location: Sierra Vista, AZ
Posts: 54
mine was making the same sound a few days after i bought it. took it to the dealership and they said it was because I had bad fuel. BUt it did it again 2 days ago when the tank got at a 1/4 of fuel.
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