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Re: 5.3l engine knock
Well, I disconnected the battery and let it set for a bit.... that clears the ECM completely I suppose because it also idled a bit funny for a second trying to figure itself out after I restarted it. That cleared the light of course, and I drove it for a couple weeks before the light came back on. But this time it stayed on for only about 30 min and then went back off.... so far hasn't come back after that. Keeping my fingers crossed.
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