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Prev Professional Automotive Repair Technical Discussions for November 27, 2021
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2003 Ford Expedition Eddie Bauer 5.4L Monitor Not Ready VIN: 1FMFU17L93
Thank you to all that supplied insight. Misfires in Mode 6 data occurred at cold start. Lots of timing chain rattle at cold start up (~2sec). After a couple cold starts the timing chain hyd tensioners pumped up and no more misfires. Reset PCM and ran to ga...
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