Quote:
Originally Posted by Groovy Chick
So what did you and Bill figure out?
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It sounds like the timing and spark advancement. I had a slight feeling, but due to my lack of knowledge I wasn't positive. He said he will adjust my tune to see if it works when he gets to it. I am running stock now and there is no weird noise, but I can tell my TB probably needs a cleaning soon despite only 55k miles on the odometer. I was told by members on F-150online to run premium gas on the tune as well and see if it stops
