knock

  1. M

    What is this engine noise? pinging/tapping/knocking

    So this is a 2007 mustang GT/CS. It is 99% stock. 78k miles. I was driving home and stopped to get gas. Drove it home. Parked it for a week. Started it the other day and it made this sound. This car has had 2 previous owners and there are zero signs of rough driving or abuse. The first 6 or 7...
  2. S

    2013 GT procharger false knock or real knock

    On data logs I am showing +3.65 knock at 4k rpm WOT then it goes back down to normal. Could this be bad fuel or would this be something making false knock? It’s only a spike at 4k rpm everytime i go WOT.
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